Fix long lines in lib_calc.c

Fixed a segfault when getpwuid() returned NULL during initialization.
Thanks goes to baratharon GitHub user for reporting this issue.

CHANGES

@@ -1,4 +1,105 @@
-The following are the changes from calc version 2.12.6.6 to date:
+The following are the changes from calc version 2.12.7.1 to date:
+
+    Corrected CHANGES notes that were mixed up for TAB, VT, CR &
+    NL.  The code in 2.12.7.0 is correct.  The CHANGE notes should
+    have read:
+
+	The following is a partial list of escape sequences recognized
+	in strings and in printf formats:
+
+	    \a	audible bell	byte 0x07 in ASCII encoding
+	    \b	backspace	byte 0x08 in ASCII encoding
+	    \f	form feed	byte 0x0c in ASCII encoding
+	    \n	newline		byte 0x0a in ASCII encoding
+	    \r	return		byte 0x0d in ASCII encoding
+	    \t	tab		byte 0x09 in ASCII encoding
+	    \v	vertical tab	byte 0x0b in ASCII encoding
+
+     Fixed a segfault when getpwuid() returned NULL during initialization.
+     Thanks goes to baratharon GitHub user for reporting this issue.
+
+
+The following are the changes from calc version 2.12.6.10: to 2.12.7.0:
+
+    Added a patch to replaces the manual search for include files
+    in $(INCDIR) in the have_*.h targets with compiler invocations.
+    Thanks goes to Helmut Grohne (helmut at subdivi dot de) who
+    implemented the patch and posted it to the Debian bug tracker
+    and Martin Buck (m at rtin-buck dor de) for forwarding it to us.
+
+    The check_include make rule was fixed to not assume /usr/include.
+
+    The qprintnum() function now takes outdigits as a 3rd argument.
+    Most of the time, this 3rd argument is just conf->outdigits.
+    But when it comes to the experimental '%g', this value can
+    change.  This avoids having to modify conf->outdigits.
+
+    Fixed a problem where gcc complains about E_FUNC not being defined
+    for Linux systems as reported by Martin Buck (m at rtin-buck dor de).
+
+    Updated the help files help/config, help/display, help/epsilon,
+    help/fprint, help/printf, and help/strprintf to give more
+    examples of how display digits and epsilon precision interact
+    with displaying values.
+
+    Added more information about %g in the help file help/printf.
+
+    The '\a' is now recognized in a printf format string as the
+    single byte audible bell character (byte 0x07 in ASCII encoding).
+
+    The following is a partial list of escape sequences recognized
+    in strings and in printf formats:
+
+	\a	audible bell	byte 0x07 in ASCII encoding
+	\b	backspace	byte 0x08 in ASCII encoding
+	\f	form feed	byte 0x0c in ASCII encoding
+	\n	newline		byte 0x0a in ASCII encoding
+	\r	return		byte 0x0d in ASCII encoding
+	\t	tab		byte 0x09 in ASCII encoding
+	\v	vertical tab	byte 0x0b in ASCII encoding
+
+
+The following are the changes from calc version 2.12.6.9 to 2.12.6.9:
+
+    Fixed a number of core dump bugs related to the calculation of
+    tan(), cot(), sec(), csc(), tanh(), coth(), sech(), and csch(),
+    asin(), acos(), asinh(), acosh(), where when a call to an
+    underlying function produced an invalid value.  Thanks goes to
+    github user wuxiuheng for reporting this problem.
+
+    A number of trigonometric and hyperbolic functions that incorrectly
+    returned E_LOGINF, now return a new error code that is more
+    specific to the trigonometric or hyperbolic function.  The
+    following is a list of these new error codes: E_TAN3 E_TAN4
+    E_COT3 E_COT4 E_SEC3 E_CSC3 E_TANH3 E_TANH4 E_COTH3 E_COTH4
+    E_SECH3 E_CSCH3 E_ASIN3 E_ACOS3 E_ASINH3 E_ACOSH3 E_ATAN3 E_ACOT3
+    E_ASEC3 E_ACSC3 E_ATANH3 E_ACOTH3 E_ASECH3 E_ACSCH3.
+
+    Added regression tests 3729 thru 3732 to test E_TAN3, E_COT3,
+    E_SEC3 and E_CSC3 respectively.
+
+    Added experimential %g printf (and strprintf) format implementation
+    based on pull request from github user 10110111.
+
+    Made exterimental changes to macOS builds to not require use of
+    /usr/include.  The INCDIR for macOS uses:
+
+	INCDIR= $(shell xcrun --show-sdk-path --sdk macosx)/usr/include
+
+    to determine the upper path of the /usr/include directory for macOS.
+    In some rare cases, the Darwin target seems to not automatically detected.
+    If you are running under macOS, and that happens, you can force
+    the target to be Darwin:
+
+	# for macOS users only, force the target to be darwin
+	#
+	make target=Darwin clobber
+	make target=Darwin all
+	make target=Darwin chk
+	make target=Darwin install
+
+
+The following are the changes from calc version 2.12.6.6 to 2.12.6.8:
 
     For historical purposes, in lucas.cal, gen_v1(1, n) always returns 4.
 

HOWTO.INSTALL

@@ -32,6 +32,16 @@ Installing calc from the bzip2-ed tarball in 4 easy steps:
 	targets, the default make is sufficent.  On FreeBSD for example,
 	one must use gmake instead of make.
 
+	Some report that under macOS, one has to declare the target
+	to be darwin.  So for macOS, one might have to do:
+
+	    # for macOS users only, force the target to be darwin
+	    #
+	    make target=Darwin clobber
+	    make target=Darwin all
+	    make target=Darwin chk
+	    make target=Darwin install
+
 	If your target system does not have GNU Make (or equivalent), then
 	you should try using the Makefile.simple and custom/Makefile.simple
 	files:

Makefile

@@ -207,30 +207,9 @@ all: fix_version check_include
 	${V} echo '=-=-=-=-= private Makefile $@ rule end =-=-=-=-='
 
 check_include:
-	$(Q) if [ ! -d /usr/include ]; then \
+	${V} echo '=-=-=-=-= private Makefile $@ rule start =-=-=-=-='
-	    echo "ERROR: critical directory missing: /usr/include" 1>&2; \
+	${Q} ${MAKE} ${XARG} -f ${MAKE_FILE} $@ ${XVAR}
-	    echo "Without this critical directory, we cannot compile." 1>&2; \
+	${V} echo '=-=-=-=-= private Makefile $@ rule end =-=-=-=-='
-	    echo 1>&2; \
-	    echo "Perhaps your system isn't setup to compile C source?" 1>&2; \
-	    echo "For example, Apple OS X / darwin requres that XCode" 1>&2; \
-	    echo "must be installed and that you run the command:" 1>&2; \
-	    echo 1>&2; \
-	    echo "    xcode-select --install" 1>&2; \
-	    echo 1>&2; \
-	    exit 1; \
-	fi
-	$(Q) if [ ! -f /usr/include/stdio.h ]; then \
-	    echo "ERROR: critical include files are missing" 1>&2; \
-	    echo "Without this critical directory, we cannot compile." 1>&2; \
-	    echo 1>&2; \
-	    echo "Perhaps your system isn't setup to compile C source?" 1>&2; \
-	    echo "For example, Apple OS X / darwin requres that XCode" 1>&2; \
-	    echo "must be installed and that you run the command:" 1>&2; \
-	    echo 1>&2; \
-	    echo "    xcode-select --install" 1>&2; \
-	    echo 1>&2; \
-	    exit 1; \
-	fi
 
 calc-dynamic-only:
 	${V} echo '=-=-=-=-= private Makefile $@ rule start =-=-=-=-='

Makefile.ship

@@ -575,7 +575,7 @@ HAVE_UNUSED=
 ifeq ($(target),Darwin)
 
 # default INCDIR for macOS
-INCDIR= /usr/local/include
+INCDIR= $(shell xcrun --show-sdk-path --sdk macosx)/usr/include
 
 else
 #endif	/* end of skip for non-Gnu makefiles */
@@ -1054,7 +1054,7 @@ EXT=
 
 # The default calc versions
 #
-VERSION= 2.12.6.8
+VERSION= 2.12.7.2
 
 # Names of shared libraries with versions
 #
@@ -2179,25 +2179,15 @@ TARGETS= ${EARLY_TARGETS} ${BLD_TYPE} ${LATE_TARGETS}
 all: check_include ${BLD_TYPE} CHANGES
 
 check_include:
-	$(Q) if [ ! -d /usr/include ]; then \
+	$(Q) if ! echo '#include <stdio.h>' | ${CC} -E - >/dev/null 2>&1; then \
-	    echo "ERROR: critical directory missing: /usr/include" 1>&2; \
+	    echo "ERROR: Missing critical <stdio.h> include file." 1>&2; \
-	    echo "Without this critical directory, we cannot compile." 1>&2; \
+	    echo "Without critical include files, we cannot compile." 1>&2; \
-	    echo 1>&2; \
 	    echo "Perhaps your system isn't setup to compile C source?" 1>&2; \
-	    echo "For example, Apple OS X / darwin requres that XCode" 1>&2; \
-	    echo "must be installed and that you run the command:" 1>&2; \
 	    echo 1>&2; \
-	    echo "    xcode-select --install" 1>&2; \
+	    echo "For example, Apple macOS / Darwin requres that XCode" 1>&2; \
+	    echo "must be installed." 1>&2; \
 	    echo 1>&2; \
-	    exit 1; \
+	    echo "Also macOS users might later to run this command:" 1>&2; \
-	fi
-	$(Q) if [ ! -f /usr/include/stdio.h ]; then \
-	    echo "ERROR: critical include files are missing" 1>&2; \
-	    echo "Without this critical directory, we cannot compile." 1>&2; \
-	    echo 1>&2; \
-	    echo "Perhaps your system isn't setup to compile C source?" 1>&2; \
-	    echo "For example, Apple OS X / darwin requres that XCode" 1>&2; \
-	    echo "must be installed and that you run the command:" 1>&2; \
 	    echo 1>&2; \
 	    echo "    xcode-select --install" 1>&2; \
 	    echo 1>&2; \
@@ -2477,22 +2467,15 @@ endian_calc.h: endian${EXT} ${MAKE_FILE}
 	${Q} echo '' >> endian_calc.h
 	${Q} echo '/* what byte order are we? */' >> endian_calc.h
 	-${Q} if [ X"${CALC_BYTE_ORDER}" = X ]; then \
-	    if [ -f ${INCDIR}/endian.h ]; then \
+	    if echo '#include <endian.h>' | ${CC} -E - >/dev/null 2>&1; then \
 		echo '#include <endian.h>' >> endian_calc.h; \
 		echo '#define CALC_BYTE_ORDER BYTE_ORDER' >> endian_calc.h; \
-	    elif [ -f ${INCDIR}/machine/endian.h ]; then \
+	    elif echo '#include <machine/endian.h>' | \
+		 ${CC} -E - >/dev/null 2>&1; then \
 		echo '#include <machine/endian.h>' >> endian_calc.h; \
 		echo '#define CALC_BYTE_ORDER BYTE_ORDER' >> endian_calc.h; \
-	    elif [ -f ${INCDIR}/sys/endian.h ]; then \
+	    elif echo '#include <sys/endian.h>' | \
-		echo '#include <sys/endian.h>' >> endian_calc.h; \
+		 ${CC} -E- >/dev/null 2>&1; then \
-		echo '#define CALC_BYTE_ORDER BYTE_ORDER' >> endian_calc.h; \
-	    elif [ -f /usr/include/endian.h ]; then \
-		echo '#include <endian.h>' >> endian_calc.h; \
-		echo '#define CALC_BYTE_ORDER BYTE_ORDER' >> endian_calc.h; \
-	    elif [ -f /usr/include/machine/endian.h ]; then \
-		echo '#include <machine/endian.h>' >> endian_calc.h; \
-		echo '#define CALC_BYTE_ORDER BYTE_ORDER' >> endian_calc.h; \
-	    elif [ -f /usr/include/sys/endian.h ]; then \
 		echo '#include <sys/endian.h>' >> endian_calc.h; \
 		echo '#define CALC_BYTE_ORDER BYTE_ORDER' >> endian_calc.h; \
 	    else \
@@ -2559,9 +2542,7 @@ have_times.h: ${MAKE_FILE}
 	    echo '#define HAVE_TIMES_H	/* yes */' >> have_times.h; \
 	elif [ X"${HAVE_TIMES_H}" = X"NO" ]; then \
 	    echo '#undef HAVE_TIMES_H  /* no */' >> have_times.h; \
-	elif [ -f ${INCDIR}/times.h ]; then \
+	elif echo '#include <times.h>' | ${CC} -E - >/dev/null 2>&1; then \
-	    echo '#define HAVE_TIMES_H	/* yes */' >> have_times.h; \
-	elif [ -f /usr/include/times.h ]; then \
 	    echo '#define HAVE_TIMES_H	/* yes */' >> have_times.h; \
 	else \
 	    echo '#undef HAVE_TIMES_H  /* no */' >> have_times.h; \
@@ -2570,9 +2551,7 @@ have_times.h: ${MAKE_FILE}
 	    echo '#define HAVE_SYS_TIMES_H	/* yes */' >> have_times.h; \
 	elif [ X"${HAVE_SYS_TIMES_H}" = X"NO" ]; then \
 	    echo '#undef HAVE_SYS_TIMES_H  /* no */' >> have_times.h; \
-	elif [ -f ${INCDIR}/sys/times.h ]; then \
+	elif echo '#include <sys/times.h>' | ${CC} -E - >/dev/null 2>&1; then \
-	    echo '#define HAVE_SYS_TIMES_H  /* yes */' >> have_times.h; \
-	elif [ -f /usr/include/sys/times.h ]; then \
 	    echo '#define HAVE_SYS_TIMES_H  /* yes */' >> have_times.h; \
 	else \
 	    echo '#undef HAVE_SYS_TIMES_H  /* no */' >> have_times.h; \
@@ -2581,9 +2560,7 @@ have_times.h: ${MAKE_FILE}
 	    echo '#define HAVE_TIME_H	/* yes */' >> have_times.h; \
 	elif [ X"${HAVE_TIME_H}" = X"NO" ]; then \
 	    echo '#undef HAVE_TIME_H  /* no */' >> have_times.h; \
-	elif [ -f ${INCDIR}/time.h ]; then \
+	elif echo '#include <time.h>' | ${CC} -E - >/dev/null 2>&1; then \
-	    echo '#define HAVE_TIME_H  /* yes */' >> have_times.h; \
-	elif [ -f /usr/include/time.h ]; then \
 	    echo '#define HAVE_TIME_H  /* yes */' >> have_times.h; \
 	else \
 	    echo '#undef HAVE_TIME_H  /* no */' >> have_times.h; \
@@ -2592,9 +2569,7 @@ have_times.h: ${MAKE_FILE}
 	    echo '#define HAVE_SYS_TIME_H	/* yes */' >> have_times.h; \
 	elif [ X"${HAVE_SYS_TIME_H}" = X"NO" ]; then \
 	    echo '#undef HAVE_SYS_TIME_H  /* no */' >> have_times.h; \
-	elif [ -f ${INCDIR}/sys/time.h ]; then \
+	elif echo '#include <sys/time.h>' | ${CC} -E - >/dev/null 2>&1; then \
-	    echo '#define HAVE_SYS_TIME_H  /* yes */' >> have_times.h; \
-	elif [ -f /usr/include/sys/time.h ]; then \
 	    echo '#define HAVE_SYS_TIME_H  /* yes */' >> have_times.h; \
 	else \
 	    echo '#undef HAVE_SYS_TIME_H  /* no */' >> have_times.h; \
@@ -2630,9 +2605,7 @@ have_stdlib.h: ${MAKE_FILE}
 	    echo '#define HAVE_STDLIB_H	/* yes */' >> have_stdlib.h; \
 	elif [ X"${HAVE_STDLIB_H}" = X"NO" ]; then \
 	    echo '#undef HAVE_STDLIB_H  /* no */' >> have_stdlib.h; \
-	elif [ -f ${INCDIR}/stdlib.h ]; then \
+	elif echo '#include <stdlib.h>' | ${CC} -E - >/dev/null 2>&1; then \
-	    echo '#define HAVE_STDLIB_H	 /* yes */' >> have_stdlib.h; \
-	elif [ -f /usr/include/stdlib.h ]; then \
 	    echo '#define HAVE_STDLIB_H	 /* yes */' >> have_stdlib.h; \
 	else \
 	    echo '#undef HAVE_STDLIB_H	/* no */' >> have_stdlib.h; \
@@ -2668,9 +2641,7 @@ have_unistd.h: ${MAKE_FILE}
 	    echo '#define HAVE_UNISTD_H	/* yes */' >> have_unistd.h; \
 	elif [ X"${HAVE_UNISTD_H}" = X"NO" ]; then \
 	    echo '#undef HAVE_UNISTD_H  /* no */' >> have_unistd.h; \
-	elif [ -f ${INCDIR}/unistd.h ]; then \
+	elif echo '#include <unistd.h>' | ${CC} -E - >/dev/null 2>&1; then \
-	    echo '#define HAVE_UNISTD_H	 /* yes */' >> have_unistd.h; \
-	elif [ -f /usr/include/unistd.h ]; then \
 	    echo '#define HAVE_UNISTD_H	 /* yes */' >> have_unistd.h; \
 	else \
 	    echo '#undef HAVE_UNISTD_H	/* no */' >> have_unistd.h; \
@@ -2706,9 +2677,7 @@ have_string.h: ${MAKE_FILE}
 	    echo '#define HAVE_STRING_H	/* yes */' >> have_string.h; \
 	elif [ X"${HAVE_STRING_H}" = X"NO" ]; then \
 	    echo '#undef HAVE_STRING_H  /* no */' >> have_string.h; \
-	elif [ -f ${INCDIR}/string.h ]; then \
+	elif echo '#include <string.h>' | ${CC} -E - >/dev/null 2>&1; then \
-	    echo '#define HAVE_STRING_H	 /* yes */' >> have_string.h; \
-	elif [ -f /usr/include/string.h ]; then \
 	    echo '#define HAVE_STRING_H	 /* yes */' >> have_string.h; \
 	else \
 	    echo '#undef HAVE_STRING_H	/* no */' >> have_string.h; \
@@ -2748,22 +2717,12 @@ terminal.h: ${MAKE_FILE}
 	    echo '#undef USE_TERMIOS   /* <termios.h> */' >> terminal.h; \
 	    echo '#undef USE_TERMIO    /* <termio.h> */' >> terminal.h; \
 	    echo '#undef USE_SGTTY     /* <sys/ioctl.h> */' >> terminal.h; \
-	elif [ -f ${INCDIR}/termios.h ]; then \
+	elif echo '#include <termios.h>' | ${CC} -E - >/dev/null 2>&1; then \
 	    echo '/* use termios */' >> terminal.h; \
 	    echo '#define USE_TERMIOS  /* <termios.h> */' >> terminal.h; \
 	    echo '#undef USE_TERMIO    /* <termio.h> */' >> terminal.h; \
 	    echo '#undef USE_SGTTY     /* <sys/ioctl.h> */' >> terminal.h; \
-	elif [ -f ${INCDIR}/termio.h ]; then \
+	elif echo '#include <termio.h>' | ${CC} -E - >/dev/null 2>&1; then \
-	    echo '/* use termio */' >> terminal.h; \
-	    echo '#undef USE_TERMIOS   /* <termios.h> */' >> terminal.h; \
-	    echo '#define USE_TERMIO   /* <termio.h> */' >> terminal.h; \
-	    echo '#undef USE_SGTTY     /* <sys/ioctl.h> */' >> terminal.h; \
-	elif [ -f /usr/include/termios.h ]; then \
-	    echo '/* use termios */' >> terminal.h; \
-	    echo '#define USE_TERMIOS  /* <termios.h> */' >> terminal.h; \
-	    echo '#undef USE_TERMIO    /* <termio.h> */' >> terminal.h; \
-	    echo '#undef USE_SGTTY     /* <sys/ioctl.h> */' >> terminal.h; \
-	elif [ -f /usr/include/termio.h ]; then \
 	    echo '/* use termio */' >> terminal.h; \
 	    echo '#undef USE_TERMIOS   /* <termios.h> */' >> terminal.h; \
 	    echo '#define USE_TERMIO   /* <termio.h> */' >> terminal.h; \

cal/regress.cal

@@ -3227,9 +3227,9 @@ define test_error()
 
 	print '3600: Beginning test_error';
 
-	/* bump ecnt up by 148 */
+	/* bump ecnt up by 156 */
-	ecnt += 148;
+	ecnt += 156;
-	print				'3601: ecnt += 148';
+	print				'3601: ecnt += 156';
 
 	strx = "x";
 	print				'3602: strx = "x"';
@@ -3418,11 +3418,15 @@ define test_error()
 	n = 8191;
 	print				'3727: n = 8191';
 	/* test 3728 removed due to non-portable strerror() output */
+	vrfy(tan(2e9i) == error(10435),	'3729: tan(2e9i) == error(10435)');
+	vrfy(cot(2e9i) == error(10437),	'3730: cot(2e9i) == error(10437)');
+	vrfy(sec(2e9i) == error(10439),	'3731: sec(2e9i) == error(10439)');
+	vrfy(csc(2e9i) == error(10440),	'3732: csc(2e9i) == error(10440)');
 
 	/* errmax and errcount should be bumped up the 148 errors above */
-	vrfy(errcount() == ecnt,	'3729: errcount() == ecnt');
+	vrfy(errcount() == ecnt,	'3733: errcount() == ecnt');
 
-	print '3730: Ending test_error';
+	print '3734: Ending test_error';
 }
 print '054: parsed test_error()';
 
@@ -4102,38 +4106,46 @@ define test_strprintf()
 			'4821: strprintf("%b", 27/29) == "0b11011/0b11101"');
 	vrfy(strprintf("%e", 12345) == "~1.23e4",
 			'4822: strprintf("%e", 12345) == "~1.23e4"');
+	vrfy(strprintf("%g", .385) == "~.38",
+			'4823: strprintf("%g", .385) == "~.38"');
+	vrfy(strprintf("%g", 385) == "~3.8e2",
+			'4824: strprintf("%g", 385) == "~3.8e2"');
 
 	/* mode tests with tilde == 0 */
 	c = config("tilde", 0);
-	print		'4823: c = config("tilde", 0)';
+	print		'4825: c = config("tilde", 0)';
 	vrfy(strprintf("%e", 12345) == "1.23e4",
-			'4824: strprintf("%e", 12345) == "1.23e4"');
+			'4826: strprintf("%e", 12345) == "1.23e4"');
 	vrfy(strprintf("%.3e", 12345) == "1.234e4",
-			'4825: strprintf("%.3e", 12345) == "1.234e4"');
+			'4827: strprintf("%.3e", 12345) == "1.234e4"');
 	vrfy(strprintf("%e", .00012345) == "1.23e-4",
-			'4826: strprintf("%e", .00012345) == "1.23e-4"');
+			'4828: strprintf("%e", .00012345) == "1.23e-4"');
 	vrfy(strprintf("%d %d", 27) == "27 ",
-			'4827: strprintf("%d %d", 27) == "27 "');
+			'4829: strprintf("%d %d", 27) == "27 "');
 	vrfy(strprintf("%d", 27, 29) == "27",
-			'4828: strprintf("%d", 27, 29) == "27"');
+			'4830: strprintf("%d", 27, 29) == "27"');
 	vrfy(strprintf("%r = %f", 27/29, 27/29) == "27/29 = .93",
-		'4829: strprintf("%r = %f", 27/29, 27/29) == "27/29 = .93"');
+		'4831: strprintf("%r = %f", 27/29, 27/29) == "27/29 = .93"');
 	vrfy(strprintf("%s", "abc") == "abc",
-		'4830: strprintf("%s", "abc") == "abc"');
+		'4832: strprintf("%s", "abc") == "abc"');
 	vrfy(strprintf("%f", "abc") == "abc",
-		'4831: strprintf("%f", "abc") == "abc"');
+		'4833: strprintf("%f", "abc") == "abc"');
 	vrfy(strprintf("%e", "abc") == "abc",
-		'4832: strprintf("%e", "abc") == "abc"');
+		'4834: strprintf("%e", "abc") == "abc"');
 	vrfy(strprintf("%5s", "abc") == "  abc",
-		'4833: strprintf("%5s", "abc") == "  abc"');
+		'4835: strprintf("%5s", "abc") == "  abc"');
 	vrfy(strprintf("%-5s", "abc") == "abc  ",
-		'4834: strprintf("%-5s", "abc") == "abc	 "');
+		'4836: strprintf("%-5s", "abc") == "abc	 "');
+	vrfy(strprintf("%g", .385) == ".38",
+			'4837: strprintf("%g", .385) == ".38"');
+	vrfy(strprintf("%g", 385) == "3.8e2",
+			'4838: strprintf("%g", 385) == "3.8e2"');
 
 	/* restore config */
 	c = config("all", callcfg);
-	print				    '4835: c = config("all", callcfg)';
+	print				    '4839: c = config("all", callcfg)';
 
-	print '4836: Ending test_strprintf';
+	print '4840: Ending test_strprintf';
 }
 print '088: parsed test_fileop()';
 
@@ -7932,8 +7944,8 @@ print '8901: read -once "test8900"';
 read -once "test8900";
 print '8902: about to run test8900(1,,8903)';
 testnum = test8900(1,,8903);
-print '8999: ecnt = 203;'
+print '8999: ecnt = 211;'
-ecnt = 203;
+ecnt = 211;
 /* 89xx: test calc resource functions by Christoph Zurnieden */
 
 

calcerr.tbl

@@ -451,6 +451,7 @@ E_FPATHOPEN1	Non-string arguments for fpathopen
 E_FPATHOPEN2	Unrecognized mode for fpathopen
 E_LOG1		Bad epsilon argument for log
 E_LOG2		Non-numeric first argument for log
+E_LOG3		Cannot calculate log for this value
 E_FGETFILE1	Non-file argument for fgetfile
 E_FGETFILE2	File argument for fgetfile not open for reading
 E_FGETFILE3	Unable to set file position in fgetfile
@@ -471,3 +472,27 @@ E_ISSPACE	Bad argument for isspace
 E_ISXDIGIT	Bad argument for isxdigit
 E_STRTOUPPER    Bad argument type for strtoupper
 E_STRTOLOWER    Bad argument type for strtolower
+E_TAN3		Invalid value for calculating the sin numerator for tan
+E_TAN4		Invalid value for calculating the cos denominator for tan
+E_COT3		Invalid value for calculating the sin numerator for cot
+E_COT4		Invalid value for calculating the cos denominator for cot
+E_SEC3		Invalid value for calculating the cos reciprocal for sec
+E_CSC3		Invalid value for calculating the sin reciprocal for csc
+E_TANH3		Invalid value for calculating the sinh numerator for tanh
+E_TANH4		Invalid value for calculating the cosh denominator for tanh
+E_COTH3		Invalid value for calculating the sinh numerator for coth
+E_COTH4		Invalid value for calculating the cosh denominator for coth
+E_SECH3		Invalid value for calculating the cosh reciprocal for sech
+E_CSCH3		Invalid value for calculating the sinh reciprocal for csch
+E_ASIN3		Invalid value for calculating asin
+E_ACOS3		Invalid value for calculating acos
+E_ASINH3	Invalid value for calculating asinh
+E_ACOSH3	Invalid value for calculating acosn
+E_ATAN3		Invalid value for calculating atan
+E_ACOT3		Invalid value for calculating acot
+E_ASEC3		Invalid value for calculating asec
+E_ACSC3		Invalid value for calculating acsc
+E_ATANH3	Invalid value for calculating atan
+E_ACOTH3	Invalid value for calculating acot
+E_ASECH3	Invalid value for calculating asec
+E_ACSCH3	Invalid value for calculating acsc

comfunc.c

@@ -1182,7 +1182,7 @@ comprint(COMPLEX *c)
 		return;
 	}
 	if (!qiszero(c->real) || qiszero(c->imag))
-		qprintnum(c->real, MODE_DEFAULT);
+		qprintnum(c->real, MODE_DEFAULT, conf->outdigits);
 	qtmp = c->imag[0];
 	if (qiszero(&qtmp))
 		return;
@@ -1192,7 +1192,7 @@ comprint(COMPLEX *c)
 		math_chr('-');
 		qtmp.num.sign = 0;
 	}
-	qprintnum(&qtmp, MODE_DEFAULT);
+	qprintnum(&qtmp, MODE_DEFAULT, conf->outdigits);
 	math_chr('i');
 }
 

config.c

@@ -274,6 +274,7 @@ STATIC NAMETYPE modes[] = {
 	{"oct",		MODE_OCTAL},
 	{"binary",	MODE_BINARY},
 	{"bin",		MODE_BINARY},
+	{"float-auto",	MODE_REAL_AUTO},
 	{"off",		MODE2_OFF},
 	{NULL,		0}
 };

custom/Makefile

@@ -348,7 +348,7 @@ EXT=
 
 # The default calc versions
 #
-VERSION= 2.12.6.8
+VERSION= 2.12.7.2
 
 # Names of shared libraries with versions
 #

custom/Makefile.head

@@ -348,7 +348,7 @@ EXT=
 
 # The default calc versions
 #
-VERSION= 2.12.6.8
+VERSION= 2.12.7.2
 
 # Names of shared libraries with versions
 #

file.c

@@ -1031,6 +1031,9 @@ idprintf(FILEID id, char *fmt, int count, VALUE **vals)
 		case 'e':
 			newmode = MODE_EXP;
 			break;
+		case 'g':
+			newmode = MODE_REAL_AUTO;
+			break;
 		case 'r':
 			newmode = MODE_FRAC;
 			break;

func.c

@@ -335,7 +335,7 @@ f_str(VALUE *vp)
 		break;
 	case V_NUM:
 		math_divertio();
-		qprintnum(vp->v_num, MODE_DEFAULT);
+		qprintnum(vp->v_num, MODE_DEFAULT, conf->outdigits);
 		cp = math_getdivertedio();
 		result.v_str = makestring(cp);
 		break;
@@ -2122,6 +2122,9 @@ f_log(int count, VALUE **vals)
 		default:
 			return error_value(E_LOG2);
 	}
+	if (c == NULL) {
+		return error_value(E_LOG3);
+	}
 	result.v_type = V_COM;
 	result.v_com = c;
 	if (cisreal(c)) {
@@ -2239,8 +2242,15 @@ f_tan(int count, VALUE **vals)
 		case V_COM:
 			tmp1.v_type = V_COM;
 			tmp1.v_com = c_sin(vals[0]->v_com, err);
+			if (tmp1.v_com == NULL) {
+				return error_value(E_TAN3);
+			}
 			tmp2.v_type = V_COM;
 			tmp2.v_com = c_cos(vals[0]->v_com, err);
+			if (tmp2.v_com == NULL) {
+				comfree(tmp1.v_com);
+				return error_value(E_TAN4);
+			}
 			divvalue(&tmp1, &tmp2, &result);
 			comfree(tmp1.v_com);
 			comfree(tmp2.v_com);
@@ -2276,6 +2286,9 @@ f_sec(int count, VALUE **vals)
 		case V_COM:
 			tmp.v_type = V_COM;
 			tmp.v_com = c_cos(vals[0]->v_com, err);
+			if (tmp.v_com == NULL) {
+				return error_value(E_SEC3);
+			}
 			invertvalue(&tmp, &result);
 			comfree(tmp.v_com);
 			break;
@@ -2314,8 +2327,15 @@ f_cot(int count, VALUE **vals)
 		case V_COM:
 			tmp1.v_type = V_COM;
 			tmp1.v_com = c_cos(vals[0]->v_com, err);
+			if (tmp1.v_com == NULL) {
+				return error_value(E_COT3);
+			}
 			tmp2.v_type = V_COM;
 			tmp2.v_com = c_sin(vals[0]->v_com, err);
+			if (tmp2.v_com == NULL) {
+				comfree(tmp1.v_com);
+				return error_value(E_COT4);
+			}
 			divvalue(&tmp1, &tmp2, &result);
 			comfree(tmp1.v_com);
 			comfree(tmp2.v_com);
@@ -2354,6 +2374,9 @@ f_csc(int count, VALUE **vals)
 		case V_COM:
 			tmp.v_type = V_COM;
 			tmp.v_com = c_sin(vals[0]->v_com, err);
+			if (tmp.v_com == NULL) {
+				return error_value(E_CSC3);
+			}
 			invertvalue(&tmp, &result);
 			comfree(tmp.v_com);
 			break;
@@ -2476,8 +2499,15 @@ f_tanh(int count, VALUE **vals)
 		case V_COM:
 			tmp1.v_type = V_COM;
 			tmp1.v_com = c_sinh(vals[0]->v_com, err);
+			if (tmp1.v_com == NULL) {
+				return error_value(E_TANH3);
+			}
 			tmp2.v_type = V_COM;
 			tmp2.v_com = c_cosh(vals[0]->v_com, err);
+			if (tmp2.v_com == NULL) {
+				comfree(tmp1.v_com);
+				return error_value(E_TANH4);
+			}
 			divvalue(&tmp1, &tmp2, &result);
 			comfree(tmp1.v_com);
 			comfree(tmp2.v_com);
@@ -2517,8 +2547,15 @@ f_coth(int count, VALUE **vals)
 		case V_COM:
 			tmp1.v_type = V_COM;
 			tmp1.v_com = c_cosh(vals[0]->v_com, err);
+			if (tmp1.v_com == NULL) {
+				return error_value(E_COTH3);
+			}
 			tmp2.v_type = V_COM;
 			tmp2.v_com = c_sinh(vals[0]->v_com, err);
+			if (tmp2.v_com == NULL) {
+				comfree(tmp1.v_com);
+				return error_value(E_COTH4);
+			}
 			divvalue(&tmp1, &tmp2, &result);
 			comfree(tmp1.v_com);
 			comfree(tmp2.v_com);
@@ -2555,6 +2592,9 @@ f_sech(int count, VALUE **vals)
 		case V_COM:
 			tmp.v_type = V_COM;
 			tmp.v_com = c_cosh(vals[0]->v_com, err);
+			if (tmp.v_com == NULL) {
+				return error_value(E_SECH3);
+			}
 			invertvalue(&tmp, &result);
 			comfree(tmp.v_com);
 			break;
@@ -2592,6 +2632,9 @@ f_csch(int count, VALUE **vals)
 		case V_COM:
 			tmp.v_type = V_COM;
 			tmp.v_com = c_sinh(vals[0]->v_com, err);
+			if (tmp.v_com == NULL) {
+				return error_value(E_CSCH3);
+			}
 			invertvalue(&tmp, &result);
 			comfree(tmp.v_com);
 			break;
@@ -2626,7 +2669,7 @@ f_atan(int count, VALUE **vals)
 		case V_COM:
 			tmp = c_atan(vals[0]->v_com, err);
 			if (tmp == NULL)
-				return error_value(E_LOGINF);
+				return error_value(E_ATAN3);
 			result.v_type = V_COM;
 			result.v_com = tmp;
 			if (cisreal(tmp)) {
@@ -2666,7 +2709,7 @@ f_acot(int count, VALUE **vals)
 		case V_COM:
 			tmp = c_acot(vals[0]->v_com, err);
 			if (tmp == NULL)
-				return error_value(E_LOGINF);
+				return error_value(E_ACOT3);
 			result.v_type = V_COM;
 			result.v_com = tmp;
 			if (cisreal(tmp)) {
@@ -2718,6 +2761,9 @@ f_asin(int count, VALUE **vals)
 		default:
 			return error_value(E_ASIN2);
 	}
+	if (result.v_com == NULL) {
+		return error_value(E_ASIN3);
+	}
 	if (result.v_type == V_COM && cisreal(result.v_com)) {
 		q = qlink(result.v_com->real);
 		comfree(result.v_com);
@@ -2764,6 +2810,9 @@ f_acos(int count, VALUE **vals)
 		default:
 			return error_value(E_ACOS2);
 	}
+	if (result.v_com == NULL) {
+		return error_value(E_ACOS3);
+	}
 	if (result.v_type == V_COM && cisreal(result.v_com)) {
 		q = qlink(result.v_com->real);
 		comfree(result.v_com);
@@ -2794,7 +2843,7 @@ f_asec(int count, VALUE **vals)
 	switch (vals[0]->v_type) {
 		case V_NUM:
 			if (qiszero(vals[0]->v_num))
-				return error_value(E_LOGINF);
+				return error_value(E_ASEC3);
 			result.v_num = qasec(vals[0]->v_num, err);
 			result.v_type = V_NUM;
 			if (result.v_num == NULL) {
@@ -2813,9 +2862,10 @@ f_asec(int count, VALUE **vals)
 		default:
 			return error_value(E_ASEC2);
 	}
+	if (result.v_com == NULL) {
+		return error_value(E_ASEC3);
+	}
 	if (result.v_type == V_COM) {
-		if (result.v_com == NULL)
-			return error_value(E_LOGINF);
 		if (cisreal(result.v_com)) {
 			q = qlink(result.v_com->real);
 			comfree(result.v_com);
@@ -2847,7 +2897,7 @@ f_acsc(int count, VALUE **vals)
 	switch (vals[0]->v_type) {
 		case V_NUM:
 			if (qiszero(vals[0]->v_num))
-				return error_value(E_LOGINF);
+				return error_value(E_ACSC3);
 			result.v_num = qacsc(vals[0]->v_num, err);
 			result.v_type = V_NUM;
 			if (result.v_num == NULL) {
@@ -2866,9 +2916,10 @@ f_acsc(int count, VALUE **vals)
 		default:
 			return error_value(E_ACSC2);
 	}
+	if (result.v_com == NULL) {
+		return error_value(E_ACSC3);
+	}
 	if (result.v_type == V_COM) {
-		if (result.v_com == NULL)
-			return error_value(E_LOGINF);
 		if (cisreal(result.v_com)) {
 			q = qlink(result.v_com->real);
 			comfree(result.v_com);
@@ -2903,6 +2954,9 @@ f_asinh(int count, VALUE **vals)
 			break;
 		case V_COM:
 			tmp = c_asinh(vals[0]->v_com, err);
+			if (tmp == NULL) {
+				return error_value(E_ASINH3);
+			}
 			result.v_type = V_COM;
 			result.v_com = tmp;
 			if (cisreal(tmp)) {
@@ -2955,6 +3009,9 @@ f_acosh(int count, VALUE **vals)
 		default:
 			return error_value(E_ACOSH2);
 	}
+	if (result.v_com == NULL) {
+		return error_value(E_ACOSH3);
+	}
 	if (result.v_type == V_COM && cisreal(result.v_com)) {
 		q = qlink(result.v_com->real);
 		comfree(result.v_com);
@@ -3002,9 +3059,10 @@ f_atanh(int count, VALUE **vals)
 		default:
 			return error_value(E_ATANH2);
 	}
+	if (result.v_com == NULL) {
+		return error_value(E_ATANH3);
+	}
 	if (result.v_type == V_COM) {
-		if (result.v_com == NULL)
-			return error_value(E_LOGINF);
 		if (cisreal(result.v_com)) {
 			q = qlink(result.v_com->real);
 			comfree(result.v_com);
@@ -3053,9 +3111,10 @@ f_acoth(int count, VALUE **vals)
 		default:
 			return error_value(E_ACOTH2);
 	}
+	if (result.v_com == NULL) {
+		return error_value(E_ACOTH3);
+	}
 	if (result.v_type == V_COM) {
-		if (result.v_com == NULL)
-			return error_value(E_LOGINF);
 		if (cisreal(result.v_com)) {
 			q = qlink(result.v_com->real);
 			comfree(result.v_com);
@@ -3087,7 +3146,7 @@ f_asech(int count, VALUE **vals)
 	switch (vals[0]->v_type) {
 		case V_NUM:
 			if (qiszero(vals[0]->v_num))
-				return error_value(E_LOGINF);
+				return error_value(E_ASECH3);
 			result.v_num = qasech(vals[0]->v_num, err);
 			result.v_type = V_NUM;
 			if (result.v_num == NULL) {
@@ -3106,9 +3165,10 @@ f_asech(int count, VALUE **vals)
 		default:
 			return error_value(E_ASECH2);
 	}
+	if (result.v_com == NULL) {
+		return error_value(E_ASECH3);
+	}
 	if (result.v_type == V_COM) {
-		if (result.v_com == NULL)
-			return error_value(E_LOGINF);
 		if (cisreal(result.v_com)) {
 			q = qlink(result.v_com->real);
 			comfree(result.v_com);
@@ -3140,7 +3200,7 @@ f_acsch(int count, VALUE **vals)
 	switch (vals[0]->v_type) {
 		case V_NUM:
 			if (qiszero(vals[0]->v_num))
-				return error_value(E_LOGINF);
+				return error_value(E_ACSCH3);
 			result.v_num = qacsch(vals[0]->v_num, err);
 			result.v_type = V_NUM;
 			if (result.v_num == NULL) {
@@ -3159,9 +3219,10 @@ f_acsch(int count, VALUE **vals)
 		default:
 			return error_value(E_ACSCH2);
 	}
+	if (result.v_com == NULL) {
+		return error_value(E_ACSCH3);
+	}
 	if (result.v_type == V_COM) {
-		if (result.v_com == NULL)
-			return error_value(E_LOGINF);
 		if (cisreal(result.v_com)) {
 			q = qlink(result.v_com->real);
 			comfree(result.v_com);
@@ -3260,7 +3321,7 @@ f_agd(int count, VALUE **vals)
 			return error_value(E_AGD2);
 	}
 	if (result.v_com == NULL)
-			return error_value(E_AGD3);
+		return error_value(E_AGD3);
 	if (cisreal(result.v_com)) {
 		q = qlink(result.v_com->real);
 		comfree(result.v_com);

help/config

@@ -949,6 +949,48 @@ EXAMPLE
     ; display()
 	50
 
+    ; /*
+       * NOTE: When displaying many digits after the decimal point
+       *       be sure to set display(digits) (see 'help display') to
+       *       large enough AND to set epsilon(eps) (see 'help epsilon')
+       *       small enough (or if the function has a esp argument,
+       *       give a eps argument that is small enough) to display
+       *       the value correctly.
+       */
+    ; config("tilde", 1),;
+
+    ; /* NOTE: display has too few digits and epsilon is not small enough */
+    ; config("display", 12),;		/* or display(12),; */
+    ; printf("%f\n", pi(1e-10));
+    3.1415926536
+    ; config("epsilon", 1e-10),;	/* or epsilon(1e-10),; */
+    ; printf("%f\n", pi());
+    3.1415926536
+
+    ; /* NOTE: display has too few digits yet epsilon is small enough */
+    ; config("display", 12),;		/* or display(12),; */
+    ; printf("%f\n", pi(1e-72));
+    ~3.141592653590
+    ; config("epsilon", 1e-72),;	/* or epsilon(1e-72),; */
+    ; printf("%f\n", pi());
+    ~3.141592653590
+
+    ; /* NOTE: display has enough digits but epsilon is not small enough */
+    ; config("display", 72),;		/* or display(72),; */
+    ; printf("%f\n", pi(1e-10));
+    3.1415926536
+    ; config("epsilon", 1e-10),;	/* or epsilon(1e-10),; */
+    ; printf("%f\n", pi());
+    3.1415926536
+
+    /* NOTE: display has enough digits and epsilon is small enough */
+    ; config("display", 72),;		/* or display(72),; */
+    ; printf("%f\n", pi(1e-72));
+    3.141592653589793238462643383279502884197169399375105820974944592307816406
+    ; config("epsilon", 1e-72),;	/* or epsilon(1e-72),; */
+    ; printf("%f\n", pi());
+    3.141592653589793238462643383279502884197169399375105820974944592307816406
+
 LIMITS
     none
 
@@ -956,9 +998,9 @@ LINK LIBRARY
      n/a
 
 SEE ALSO
-     usage, custom, custom_cal, usage, epsilon, display
+     custom, custom_cal, display, epsilon, fprintf, printf, strprintf, usage
 
-## Copyright (C) 1999-2007  Landon Curt Noll
+## Copyright (C) 1999-2007,2018  Landon Curt Noll
 ##
 ## Calc is open software; you can redistribute it and/or modify it under
 ## the terms of the version 2.1 of the GNU Lesser General Public License

help/display

@@ -45,6 +45,48 @@ EXAMPLE
     ; print display(5), 2/3
     40 ~0.66667
 
+    ; /*
+       * NOTE: When displaying many digits after the decimal point
+       *       be sure to set display(digits) (see 'help display') to
+       *       large enough AND to set epsilon(eps) (see 'help epsilon')
+       *       small enough (or if the function has a esp argument,
+       *       give a eps argument that is small enough) to display
+       *       the value correctly.
+       */
+    ; config("tilde", 1),;
+
+    ; /* NOTE: display has too few digits and epsilon is not small enough */
+    ; display(12),;
+    ; printf("%f\n", pi(1e-10));
+    3.1415926536
+    ; epsilon(1e-10),;
+    ; printf("%f\n", pi());
+    3.1415926536
+
+    ; /* NOTE: display has too few digits yet epsilon is small enough */
+    ; display(12),;
+    ; printf("%f\n", pi(1e-72));
+    ~3.141592653590
+    ; epsilon(1e-72),;
+    ; printf("%f\n", pi());
+    ~3.141592653590
+
+    ; /* NOTE: display has enough digits but epsilon is not small enough */
+    ; display(72),;
+    ; printf("%f\n", pi(1e-10));
+    3.1415926536
+    ; epsilon(1e-10),;
+    ; printf("%f\n", pi());
+    3.1415926536
+
+    /* NOTE: display has enough digits and epsilon is small enough */
+    ; display(72),;
+    ; printf("%f\n", pi(1e-72));
+    3.141592653589793238462643383279502884197169399375105820974944592307816406
+    ; epsilon(1e-72),;
+    ; printf("%f\n", pi());
+    3.141592653589793238462643383279502884197169399375105820974944592307816406
+
 LIMITS
     d >= 0
 
@@ -52,9 +94,9 @@ LINK LIBRARY
     none
 
 SEE ALSO
-    config
+    config, epsilon, fprintf, printf, strprintf
 
-## Copyright (C) 2004  Landon Curt Noll
+## Copyright (C) 2004,2018  Landon Curt Noll
 ##
 ## Calc is open software; you can redistribute it and/or modify it under
 ## the terms of the version 2.1 of the GNU Lesser General Public License

help/epsilon

@@ -16,13 +16,57 @@ DESCRIPTION
     and sets the stored epsilon value to eps.
 
     The stored epsilon value is used as default value for eps in
-    the functions appr(x, eps, rnd), sqrt(x, eps, rnd), etc.
+    many functions such as appr(x, eps, rnd), sqrt(x, eps, rnd),
+    pi(eps), sin(x, eps), tanh(x, eps), etc.
 
 EXAMPLE
+    ; epsilon(1e-20),;
     ; oldeps = epsilon(1e-6)
     ; print epsilon(), sqrt(2), epsilon(1e-4), sqrt(2), epsilon(oldeps)
     ; .000001 1.414214 .000001 1.4142 .0001
 
+    ; /*
+       * NOTE: When displaying many digits after the decimal point
+       *       be sure to set display(digits) (see 'help display') to
+       *       large enough AND to set epsilon(eps) (see 'help epsilon')
+       *       small enough (or if the function has a esp argument,
+       *       give a eps argument that is small enough) to display
+       *       the value correctly.
+       */
+    ; config("tilde", 1),;
+
+    ; /* NOTE: display has too few digits and epsilon is not small enough */
+    ; display(12),;
+    ; printf("%f\n", pi(1e-10));
+    3.1415926536
+    ; epsilon(1e-10),;
+    ; printf("%f\n", pi());
+    3.1415926536
+
+    ; /* NOTE: display has too few digits yet epsilon is small enough */
+    ; display(12),;
+    ; printf("%f\n", pi(1e-72));
+    ~3.141592653590
+    ; epsilon(1e-72),;
+    ; printf("%f\n", pi());
+    ~3.141592653590
+
+    ; /* NOTE: display has enough digits but epsilon is not small enough */
+    ; display(72),;
+    ; printf("%f\n", pi(1e-10));
+    3.1415926536
+    ; epsilon(1e-10),;
+    ; printf("%f\n", pi());
+    3.1415926536
+
+    /* NOTE: display has enough digits and epsilon is small enough */
+    ; display(72),;
+    ; printf("%f\n", pi(1e-72));
+    3.141592653589793238462643383279502884197169399375105820974944592307816406
+    ; epsilon(1e-72),;
+    ; printf("%f\n", pi());
+    3.141592653589793238462643383279502884197169399375105820974944592307816406
+
 LIMITS
     none
 
@@ -31,9 +75,9 @@ LINK LIBRARY
     NUMBER *_epsilon_
 
 SEE ALSO
-    config
+    config, display, fprintf, printf, strprintf
 
-## Copyright (C) 1999  Landon Curt Noll
+## Copyright (C) 1999,2018  Landon Curt Noll
 ##
 ## Calc is open software; you can redistribute it and/or modify it under
 ## the terms of the version 2.1 of the GNU Lesser General Public License

help/fprintf

@@ -45,6 +45,48 @@ EXAMPLE
       [2] = "undefined"
       [3] = NULL
 
+    ; /*
+       * NOTE: When displaying many digits after the decimal point
+       *       be sure to set display(digits) (see 'help display') to
+       *       large enough AND to set epsilon(eps) (see 'help epsilon')
+       *       small enough (or if the function has a esp argument,
+       *       give a eps argument that is small enough) to display
+       *       the value correctly.
+       */
+    ; config("tilde", 1),;
+
+    ; /* NOTE: display has too few digits and epsilon is not small enough */
+    ; display(12),;
+    ; fprintf(files(1), "%f\n", pi(1e-10));
+    3.1415926536
+    ; epsilon(1e-10),;
+    ; fprintf(files(1), "%f\n", pi());
+    3.1415926536
+
+    ; /* NOTE: display has too few digits yet epsilon is small enough */
+    ; display(12),;
+    ; fprintf(files(1), "%f\n", pi(1e-72));
+    ~3.141592653590
+    ; epsilon(1e-72),;
+    ; fprintf(files(1), "%f\n", pi());
+    ~3.141592653590
+
+    ; /* NOTE: display has enough digits but epsilon is not small enough */
+    ; display(72),;
+    ; fprintf(files(1), "%f\n", pi(1e-10));
+    3.1415926536
+    ; epsilon(1e-10),;
+    ; fprintf(files(1), "%f\n", pi());
+    3.1415926536
+
+    /* NOTE: display has enough digits and epsilon is small enough */
+    ; display(72),;
+    ; fprintf(files(1), "%f\n", pi(1e-72));
+    3.141592653589793238462643383279502884197169399375105820974944592307816406
+    ; epsilon(1e-72),;
+    ; fprintf(files(1), "%f\n", pi());
+    3.141592653589793238462643383279502884197169399375105820974944592307816406
+
 LIMITS
     The number of arguments of fprintf() is not to exceed 1024.
 
@@ -52,9 +94,9 @@ LINK LIBRARY
     none
 
 SEE ALSO
-    printf, strprintf, print
+    config, display, epsilon, printf, strprintf
 
-## Copyright (C) 1999-2006  Landon Curt Noll
+## Copyright (C) 1999-2006,2018  Landon Curt Noll
 ##
 ## Calc is open software; you can redistribute it and/or modify it under
 ## the terms of the version 2.1 of the GNU Lesser General Public License

help/printf

@@ -28,7 +28,7 @@ DESCRIPTION
 	    zero or more decimal digits
 	    an optional '. followed by zero or more decimal deigits
 	    an optional 'l'
-	    one of the letters: d, s, c, f, e, r, o, x, b,
+	    one of the letters: d, s, c, f, e, g, r, o, x, b,
 
     If any other character is read, the '%' and any characters
     between '%' and the character are ignored and no specifier is
@@ -51,26 +51,39 @@ DESCRIPTION
 	    d, s, c		current config("mode")
 	    f		real (decimal, floating point)
 	    e		exponential
+	    g		general format (real or exponential)
 	    r		fractional
 	    o		octal
 	    x		hexadecimal
 	    b		binary
 
-    If the number of arguments after fmt is less than the
+    If the number of arguments after fmt is less than the number
-    number of format specifiers in fmt, the "missing" arguments
+    of format specifiers in fmt, the "missing" arguments may be
-    may be taken to be null values - these contribute nothing to the
+    taken to be null values - these contribute nothing to the output;
-    output; if a positive width w has been specified, the effect is
+    if a positive width w has been specified, the effect is to
-    to produce w spaces, e.g. printf("abc%6dxyz") prints "abc	   xyz".
+    produce w spaces, e.g., printf("abc%6dxyz") prints "abc      xyz".
 
-    If i <= the number of specifiers in fmt, the value of argument x_i
+    Control charters may be given in fmt by escaping them with
-    is printed in the format specified by the i-th specifier.
+    the \ character.  The following control charter escape
-    If a positive width w has been specified and normal printing of x_i
+    sequences are recognized:
-    does not include a '\n' character, what is printed will if necessary
+
-    be padded with spaces so that the length of the printed output
+	\a	audible bell	byte 0x07 in ASCII encoding
-    is at least the w.	Note that control
+	\b	backspace	byte 0x08 in ASCII encoding
-    characters like '\t', '\b' each count as one character.  If
+	\f	form feed	byte 0x0c in ASCII encoding
-    the 'right-pad' flag has been set, the padding is on the right;
+	\n	newline		byte 0x0b in ASCII encoding
-    otherwise it is on the left.
+	\r	return		byte 0x0a in ASCII encoding
+	\t	tab		byte 0x0d in ASCII encoding
+	\v	vertical tab	byte 0x09 in ASCII encoding
+
+    If i <= the number of specifiers in fmt, the value of argument
+    x_i is printed in the format specified by the i-th specifier.
+    If a positive width w has been specified and normal printing
+    of x_i does not include a '\n' character, what is printed will
+    if necessary be padded with spaces so that the length of the
+    printed output is at least the w.  Note that control characters
+    (e.g., '\a', '\b', '\f', '\n', '\r', '\t', '\n') count as one
+    character.  If the 'right-pad' flag has been set, the padding
+    is on the right; otherwise it is on the left.
 
     If i > the number of specifiers in fmt, the value of argument x_i
     does not contribute to the printing.  However, as all arguments
@@ -83,22 +96,38 @@ DESCRIPTION
     specified precision will be ignored except for floating-point
     mode.
 
-    In the case of floating-point (f) format the precision determines
+    The (g) general format will print the as real (f) (decimal or
-    the maximum number of decimal places to be
+    floating point) or as an exponential (e) depending on the
-    displayed.	Other aspects of this printing may be affected by the
+    configuration parameter "display".
-    configuration parameters "outround", "tilde", "fullzero", "leadzero".
+
+    In the case of floating-point (f) format, and the (g) general
+    format, the precision determines the maximum number of decimal
+    places to be displayed.  Other aspects of this printing may be
+    affected by the configuration parameters "outround", "tilde",
+    "fullzero", "leadzero".
 
 EXAMPLE
-    ; c = config("epsilon", 1e-6); c = config("display", 6);
+    ; config("epsilon", 1e-6),;
-    ; c = config("tilde", 1); c = config("outround", 0);
+    : config("display", 6),;
-    ; c = config("fullzero", 0);
+    ; config("tilde", 1),;
+    ; config("outround", 0),;
+    ; config("fullzero", 0),;
     ; fmt = "%f,%10f,%-10f,%10.4f,%.4f,%.f.\n";
     ; a = sqrt(3);
     ; printf(fmt,a,a,a,a,a,a);
     1.732051,  1.732051,1.732051  ,   ~1.7320,~1.7320,~1.
 
-    ; c = config("tilde", 0); c = config("outround",24);
+    ; config("display", 5),;
-    ; c = config("fullzero", 1);
+    : config("tilde", 0),;
+    ; printf("%f\n", pi());
+    3.1416
+    ; config("display", 10),;
+    ; printf("%f\n", pi());
+    3.141592654
+
+    ; config("tilde", 0),;
+    : config("outround",24),;
+    ; config("fullzero", 1),;
     ; printf(fmt,a,a,a,a,a,a);
     1.732051,  1.732051,1.732051  ,    1.7321,1.7321,2.
 
@@ -116,6 +145,82 @@ EXAMPLE
       [2] = "undefined"
       [3] = NULL
 
+    ; config("display", 50),;
+    ; printf("%g %g\n%g %g\n", 1e5, 1e49, 1e50, 1e500);
+    100000 100000000000000000000000000000000000000000000000000
+    1e50 1e500
+
+    ; config("display", 10),;
+    : config("tilde", 0),;
+    ; printf("%f %f %f\n%f %f %f\n",
+             exp(1), exp(2), exp(3), exp(4), exp(5), exp(6));
+    2.7182818285 7.3890560989 20.0855369232
+    54.5981500331 148.4131591026 403.4287934927
+    ; printf("%e %e %e\n%e %e %e\n",
+             exp(1), exp(2), exp(3), exp(4), exp(5), exp(6));
+    2.7182818285 7.3890560989 2.0085536923e1
+    5.4598150033e1 1.4841315910e2 4.0342879349e2
+    ; printf("%g %g %g\n%g %g %g\n",
+             exp(1), exp(2), exp(3), exp(4), exp(5), exp(6));
+    2.718281828 7.389056099 20.08553692
+    54.59815003 148.4131591 403.4287935
+
+    ; config("display", 10),;
+    ; config("tilde", 0),;
+    ; printf("%f %f %f\n%f %f %f\n",
+             exp(20), exp(21), exp(22), exp(23), exp(24), exp(25));
+    485165195.4097902780 1318815734.4832146972 3584912846.1315915617
+    9744803446.2489026000 26489122129.8434722941 72004899337.3858725242`
+    ; printf("%e %e %e\n%e %e %e\n",
+             exp(20), exp(21), exp(22), exp(23), exp(24), exp(25));
+    4.8516519541e8 1.3188157345e9 3.5849128461e9
+    9.7448034462e9 2.6489122130e10 7.2004899337e10
+    ; printf("%g %g %g\n%g %g %g\n",
+             exp(20), exp(21), exp(22), exp(23), exp(24), exp(25));
+    485165195.4 1318815734 3584912846
+    9744803446 2.648912213e10 7.200489934e10
+
+    ; /*
+       * NOTE: When displaying many digits after the decimal point
+       *       be sure to set display(digits) (see 'help display') to
+       *       large enough AND to set epsilon(eps) (see 'help epsilon')
+       *       small enough (or if the function has a esp argument,
+       *       give a eps argument that is small enough) to display
+       *       the value correctly.
+       */
+    ; config("tilde", 1),;
+
+    ; /* NOTE: display has too few digits and epsilon is not small enough */
+    ; display(12),;
+    ; printf("%f\n", pi(1e-10));
+    3.1415926536
+    ; epsilon(1e-10),;
+    ; printf("%f\n", pi());
+    3.1415926536
+
+    ; /* NOTE: display has too few digits yet epsilon is small enough */
+    ; display(12),;
+    ; printf("%f\n", pi(1e-72));
+    ~3.141592653590
+    ; epsilon(1e-72),;
+    ; printf("%f\n", pi());
+    ~3.141592653590
+
+    ; /* NOTE: display has enough digits but epsilon is not small enough */
+    ; display(72),;
+    ; printf("%f\n", pi(1e-10));
+    3.1415926536
+    ; epsilon(1e-10),;
+    ; printf("%f\n", pi());
+    3.1415926536
+
+    /* NOTE: display has enough digits and epsilon is small enough */
+    ; display(72),;
+    ; printf("%f\n", pi(1e-72));
+    3.141592653589793238462643383279502884197169399375105820974944592307816406
+    ; epsilon(1e-72),;
+    ; printf("%f\n", pi());
+    3.141592653589793238462643383279502884197169399375105820974944592307816406
 
 LIMITS
     The number of arguments of printf() is not to exceed 1024.
@@ -124,9 +229,9 @@ LINK LIBRARY
     none
 
 SEE ALSO
-    fprintf, strprintf, print
+    config, display, epsilon, fprintf, strprintf
 
-## Copyright (C) 1999-2006  Landon Curt Noll
+## Copyright (C) 1999-2006,2018  Landon Curt Noll
 ##
 ## Calc is open software; you can redistribute it and/or modify it under
 ## the terms of the version 2.1 of the GNU Lesser General Public License

help/str

@@ -37,7 +37,7 @@ LIMITS
 
 LINK LIBRARY
     void math_divertio();
-    qprintnum(NUMBER *x, int outmode);
+    qprintnum(NUMBER *x, int outmode, LEN outdigits);
     char *math_getdivertedio();
 
     math_divertio();
@@ -47,7 +47,7 @@ LINK LIBRARY
 SEE ALSO
     base, base2, config
 
-## Copyright (C) 1999-2006  Landon Curt Noll
+## Copyright (C) 1999-2006,2018  Landon Curt Noll
 ##
 ## Calc is open software; you can redistribute it and/or modify it under
 ## the terms of the version 2.1 of the GNU Lesser General Public License

help/strprintf

@@ -18,15 +18,68 @@ EXAMPLE
     ; strprintf("h=%d, i=%d", 2, 3);
 	    "h=2, i=3"
 
-    ; c = config("epsilon", 1e-6); c = config("display", 6);
+    ; config("epsilon", 1e-6),;
-    ; c = config("tilde", 1); c = config("outround", 0);
+    ; config("display", 6),;
-    ; c = config("fullzero", 0);
+    ; config("tilde", 1),;
+    ; config("outround", 0),;
+    ; config("fullzero", 0),;
     ; fmt = "%f,%10f,%-10f,%10.4f,%.4f,%.f.\n";
     ; a = sqrt(3);
     ; strprintf(fmt,a,a,a,a,a,a);
 	    "1.732051,	1.732051,1.732051  ,   ~1.7320,~1.7320,~1.
     "
 
+    ; config("display", 50),;
+    ; fmt2 = "%g %g\n%g %g\n"
+    ; strprintf(fmt2, 1e5, 1e49, 1e50, 1e500);
+	    "100000 100000000000000000000000000000000000000000000000000
+    1e50 1e500
+    "
+
+    ; /*
+       * NOTE: When displaying many digits after the decimal point
+       *       be sure to set display(digits) (see 'help display') to
+       *       large enough AND to set epsilon(eps) (see 'help epsilon')
+       *       small enough (or if the function has a esp argument,
+       *       give a eps argument that is small enough) to display
+       *       the value correctly.
+       */
+    ; config("tilde", 1),;
+    ; config("tab", 0),;
+    ; fmt1 = "%f";
+
+    ; /* NOTE: display has too few digits and epsilon is not small enough */
+    ; display(12),;
+    ; strprintf(fmt1, pi(1e-10));
+    "3.1415926536"
+    ; epsilon(1e-10),;
+    ; strprintf(fmt1, pi());
+    "3.1415926536"
+
+    ; /* NOTE: display has too few digits yet epsilon is small enough */
+    ; display(12),;
+    ; strprintf(fmt1, pi(1e-72));
+    "~3.141592653590"
+    ; epsilon(1e-72),;
+    ; strprintf(fmt1, pi());
+    ~3.141592653590
+
+    ; /* NOTE: display has enough digits but epsilon is not small enough */
+    ; display(72),;
+    ; strprintf(fmt1, pi(1e-10));
+    "3.1415926536"
+    ; epsilon(1e-10),;
+    ; strprintf(fmt1, pi());
+    "3.1415926536"
+
+    /* NOTE: display has enough digits and epsilon is small enough */
+    ; display(72),;
+    ; strprintf(fmt1, pi(1e-72));
+    "3.141592653589793238462643383279502884197169399375105820974944592307816406"
+    ; epsilon(1e-72),;
+    ; strprintf(fmt1, pi());
+    "3.141592653589793238462643383279502884197169399375105820974944592307816406"
+
 LIMITS
     The number of arguments of strprintf() is not to exceed 1024.
 
@@ -34,12 +87,11 @@ LINK LIBRARY
     none
 
 SEE ALSO
-    strcat, strcpy, strerror, strlen, strncmp, strncpy, strpos,
+    config, display, epsilon, fprintf, strcat, strcpy, strerror,
-    strscan, strscanf, substr,
+    strlen, strncmp, strncpy, strpos, strscan, strscanf, substr,
+    printf
 
-    printf, fprintf, print
+## Copyright (C) 1999-2006,2018  Landon Curt Noll
-
-## Copyright (C) 1999-2006  Landon Curt Noll
 ##
 ## Calc is open software; you can redistribute it and/or modify it under
 ## the terms of the version 2.1 of the GNU Lesser General Public License

lib_calc.c

@@ -1,7 +1,7 @@
 /*
  * lib_calc - calc link library initialization and shutdown routines
  *
- * Copyright (C) 1999-2007  Landon Curt Noll
+ * Copyright (C) 1999-2007,2018  Landon Curt Noll
  *
  * Calc is open software; you can redistribute it and/or modify it under
  * the terms of the version 2.1 of the GNU Lesser General Public License
@@ -504,22 +504,36 @@ initenv(void)
 	home = (c ? strdup(c) : NULL);
 #if defined(_WIN32)
 	if (home == NULL || home[0] == '\0') {
+		/* free home if it was previously allocated, but empty */
+		if (home != NULL) {
+			free(home);
+		}
 		/* just assume . is home if all else fails */
-		home = ".";
+		home = strdup(".");
 	}
 #else /* Windoz free systems */
 	if (home == NULL || home[0] == '\0') {
-		size_t pw_dir_len;
+		/* free home if it was previously allocated, but empty */
-		ent = (struct passwd *)getpwuid(geteuid());
+		if (home != NULL) {
-		if (ent == NULL) {
+			free(home);
-			/* just assume . is home if all else fails */
+		}
-			home = ".";
+		/* try using the home directory of current effective UID */
+		ent = (struct passwd *)getpwuid(geteuid());
+		if (ent == NULL || ent->pw_dir == NULL ||
+		    ent->pw_dir[0] == '\0') {
+			/* just assume . is home if all else fails */
+			home = strdup(".");
+		} else {
+			/* use home directory of current effective UID */
+			home = strdup(ent->pw_dir);
 		}
-		pw_dir_len = strlen(ent->pw_dir);
-		home = (char *)malloc(pw_dir_len+1);
-		strncpy(home, ent->pw_dir, pw_dir_len+1);
 	}
 #endif /* Windoz free systems */
+	/* paranoia */
+	if (home == NULL) {
+		math_error("Unable to allocate string for $HOME");
+		/*NOTREACHED*/
+	}
 
 	/* determine the $PAGER value */
 	c = (no_env ? NULL : getenv(PAGER));

longbits.c

@@ -92,12 +92,6 @@
 # include <stdlib.h>
 #endif
 
-#if defined(__linux)
-# if !defined(isascii)
-   E_FUNC int isascii(int c);
-# endif /* !isascii */
-#endif /* __linux */
-
 char *program;		/* our name */
 
 int

qio.c

@@ -62,12 +62,13 @@ qprintf(char *fmt, ...)
 			if (ch == '\\') {
 				ch = *fmt++;
 				switch (ch) {
+				case 'a': ch = '\a'; break;
+				case 'b': ch = '\b'; break;
+				case 'f': ch = '\f'; break;
 				case 'n': ch = '\n'; break;
 				case 'r': ch = '\r'; break;
 				case 't': ch = '\t'; break;
-				case 'f': ch = '\f'; break;
 				case 'v': ch = '\v'; break;
-				case 'b': ch = '\b'; break;
 				case 0:
 					va_end(ap);
 					return;
@@ -97,6 +98,15 @@ qprintf(char *fmt, ...)
 			q = va_arg(ap, NUMBER *);
 			qprintfe(q, width, precision);
 			break;
+		case 'g':
+			q = va_arg(ap, NUMBER *);
+			/* XXX - we need a qprintfg function */
+#if 0	/* XXX - we need a qprintfg() function */
+			qprintfg(q, width, precision);
+#else	/* XXX - use qprintfe until we have a qprintfg() function */
+			qprintfe(q, width, precision);
+#endif	/* XXX - we need a qprintfg() function */
+			break;
 		case 'r':
 		case 'R':
 			q = va_arg(ap, NUMBER *);
@@ -174,7 +184,7 @@ qprintf(char *fmt, ...)
  * Integers are always printed as themselves.
  */
 void
-qprintnum(NUMBER *q, int outmode)
+qprintnum(NUMBER *q, int outmode, LEN outdigits)
 {
 	NUMBER tmpval;
 	long prec, exp;
@@ -193,13 +203,13 @@ qprintnum(NUMBER *q, int outmode)
 
 	case MODE_REAL:
 		prec = qdecplaces(q);
-		if ((prec < 0) || (prec > conf->outdigits)) {
+		if ((prec < 0) || (prec > outdigits)) {
 			if (conf->tilde_ok)
 			    PUTCHAR('~');
 		}
 		if (conf->fullzero || (prec < 0) ||
-		    (prec > conf->outdigits))
+		    (prec > outdigits))
-			prec = conf->outdigits;
+			prec = outdigits;
 		qprintff(q, 0L, prec);
 		break;
 
@@ -216,7 +226,7 @@ qprintnum(NUMBER *q, int outmode)
 		tmpval.num.sign = 0;
 		exp = qilog10(&tmpval);
 		if (exp == 0) {		/* in range to output as real */
-			qprintnum(q, MODE_REAL);
+			qprintnum(q, MODE_REAL, outdigits);
 			return;
 		}
 		tmpval.num = _one_;
@@ -228,11 +238,25 @@ qprintnum(NUMBER *q, int outmode)
 		q = qmul(q, &tmpval);
 		zfree(tmpval.num);
 		zfree(tmpval.den);
-		qprintnum(q, MODE_REAL);
+		qprintnum(q, MODE_REAL, outdigits);
 		qfree(q);
 		PRINTF1("e%ld", exp);
 		break;
 
+	case MODE_REAL_AUTO:
+	{
+		const int P = conf->outdigits ? conf->outdigits : 1;
+		tmpval = *q;
+		tmpval.num.sign = 0;
+		exp = qilog10(&tmpval);
+		if (P > exp && exp >= -P) {
+			qprintnum(q, MODE_REAL, P - 1 - exp);
+		} else {
+			qprintnum(q, MODE_EXP, P - 1);
+		}
+		break;
+	}
+
 	case MODE_HEX:
 		qprintfx(q, 0L);
 		break;
@@ -252,7 +276,7 @@ qprintnum(NUMBER *q, int outmode)
 
 	if (outmode2 != MODE2_OFF) {
 		PUTSTR(" /* ");
-		qprintnum(q, outmode2);
+		qprintnum(q, outmode2, outdigits);
 		PUTSTR(" */");
 	}
 }

qmath.h

@@ -67,7 +67,7 @@ E_FUNC FULL qtou(NUMBER *q);
 E_FUNC SFULL qtos(NUMBER *q);
 E_FUNC long qparse(char *str, int flags);
 E_FUNC void qfreenum(NUMBER *q);
-E_FUNC void qprintnum(NUMBER *q, int mode);
+E_FUNC void qprintnum(NUMBER *q, int mode, LEN outdigits);
 E_FUNC void qprintff(NUMBER *q, long width, long precision);
 E_FUNC void qprintfe(NUMBER *q, long width, long precision);
 E_FUNC void qprintfr(NUMBER *q, long width, BOOL force);

qmod.c

@@ -404,7 +404,7 @@ showredcdata(void)
 	for (i = 0, rcp = redc_cache; i < MAXREDC; i++, rcp++) {
 		if (rcp->age > 0) {
 			printf("%-8ld%-8ld", i, rcp->age);
-			qprintnum(rcp->rnum, 0);
+			qprintnum(rcp->rnum, 0, conf->outdigits);
 			printf("\n");
 		}
 	}

str.c

@@ -1380,17 +1380,17 @@ printechar(char *c)
 	math_chr('\\');
 	ech = 0;
 	switch (ch) {
+	case '\a': ech = 'a'; break;
+	case '\b': ech = 'b'; break;
+	case '\f': ech = 'f'; break;
 	case '\n': ech = 'n'; break;
 	case '\r': ech = 'r'; break;
 	case '\t': ech = 't'; break;
-	case '\b': ech = 'b'; break;
-	case '\f': ech = 'f'; break;
 	case '\v': ech = 'v'; break;
 	case '\\': ech = '\\'; break;
 	case '\"': ech = '\"'; break;
 	case '\'': ech = '\''; break;
 	case 0: ech = '0'; break;
-	case 7: ech = 'a'; break;
 	case 27: ech = 'e'; break;
 	}
 	if (ech == '0') {
@@ -1438,8 +1438,17 @@ fitstring(char *str, long len, long width)
 			continue;
 		n++;
 		switch (ch) {
-		case '\n': case '\r': case '\t': case '\b': case '\f':
+		case '\a':
-		case '\v': case '\\': case '\"': case 7: case 27:
+		case '\b':
+		case '\f':
+		case '\n':
+		case '\r':
+		case '\t':
+		case '\v':
+		case '\\':
+		case '\"':
+		case '\'':
+		case 27:
 			continue;
 		}
 		if (ch >= 64 || (nch >= '0' && nch <= '7')) {

token.c

@@ -183,10 +183,12 @@ gettoken(void)
 		}
 		switch (ch) {
 		case ' ':
-		case '\t':
+		case '\a':
-		case '\r':
+		case '\b':
-		case '\v':
 		case '\f':
+		case '\r':
+		case '\t':
+		case '\v':
 		case '\0':
 			break;
 		case '\n':

value.c

@@ -2774,7 +2774,7 @@ printvalue(VALUE *vp, int flags)
 	}
 	switch (type) {
 	case V_NUM:
-		qprintnum(vp->v_num, MODE_DEFAULT);
+		qprintnum(vp->v_num, MODE_DEFAULT, conf->outdigits);
 		if (conf->traceflags & TRACE_LINKS)
 			math_fmt("#%ld", vp->v_num->links);
 		break;
@@ -2835,7 +2835,7 @@ printvalue(VALUE *vp, int flags)
 		if (userfunc("octet_print", vp))
 			break;
 		qtemp = itoq((long) *vp->v_octet);
-		qprintnum(qtemp, MODE_DEFAULT);
+		qprintnum(qtemp, MODE_DEFAULT, conf->outdigits);
 		qfree(qtemp);
 		break;
 	case V_OPTR:
@@ -2888,7 +2888,7 @@ printestr(VALUE *vp)
 			math_chr('"');
 			return;
 		case V_NUM:
-			qprintnum(vp->v_num, MODE_FRAC);
+			qprintnum(vp->v_num, MODE_FRAC, conf->outdigits);
 			return;
 		case V_COM:
 			mode = math_setmode(MODE_FRAC);

version.c

@@ -44,8 +44,8 @@ static char *program;
 
 #define MAJOR_VER	2	/* major library version */
 #define MINOR_VER	12	/* minor library version */
-#define MAJOR_PATCH	6	/* major software level under library version */
+#define MAJOR_PATCH	7	/* major software level under library version */
-#define MINOR_PATCH	8	/* minor software level or 0 if not patched */
+#define MINOR_PATCH	2	/* minor software level or 0 if not patched */
 
 
 /*

zmath.h

@@ -579,10 +579,16 @@ E_FUNC void zredcpower(REDC *rp, ZVALUE z1, ZVALUE z2, ZVALUE *res);
 #define MODE_HEX	5
 #define MODE_OCTAL	6
 #define MODE_BINARY	7
-#define MODE_MAX	7
+#define MODE_REAL_AUTO	8
+#define MODE_MAX	8
 #define MODE2_OFF	(MODE_MAX+1)
 
+/* XXX - perhaps we need the MODE_REAL_AUTO vs MODE_REAL as a config mode? */
+#if 0 	/* XXX - can we safely set MODE_INITIAL to MODE_REAL_AUTO ?? */
+#define MODE_INITIAL	MODE_REAL_AUTO
+#else
 #define MODE_INITIAL	MODE_REAL
+#endif
 #define MODE2_INITIAL	MODE2_OFF