The following are the changes in this release:
Calc can now correctly compile without CUSTOM being defined,
thanks to a report by <GitHub user barsnick>.
Fixed how the *.tar.bz2 are formed. The calc-2.12.8.0.tar.bz2 file
that was formed for calc version 2.12.8.0 was missing most files.
Expanded 'make chk' to also verify that 'make distchk' and 'make
distlist' execute successfully. This will help check a regression
of the bug that produced the bogus calc-2.12.8.0.tar.bz2 file.
Added additional regression tests related 0^(zero_expression)==1.
Fixed how the *.tar.bz2 are formed. The calc-2.12.8.0.tar.bz2 file
that was formed for calc version 2.12.8.0 was missing most files.
Expanded 'make chk' to also verify that 'make distchk' and 'make
distlist' execute successfully. This will help check a regression
of the bug that produced the bogus calc-2.12.8.0.tar.bz2 file.
Added additional regression tests related 0^(zero_expression)==1.
Fixed a mistake in "help intro" where some inserted text changed
the value of "." and thus made the next result incorrect.
Clarified in "help factor" that 1 is returned if no
factor below the limit was found.
Removed Makefile variable ${MAKEFILE_REV}.
The missing cscript/square.calc file has been restored.
Fixed compiler errors and warnings related to GCC. In particular,
gcc/9.3.1 and gcc/10.2.1 now compile calc without any compiler
errors or warnings, even with -Werror -Wextra -pedantic.
To print out information about the calc compilation
environment, we added the following make rule:
make calcinfo
Improved how 'make debug' operates.
Moved help/contrib to CONTRIB-CODE. The help/contrib file
is now build from a copy of CONTRIB-CODE.
Created a new calc bug report Email address. Created a new
calc question Email address. Created a new calc contribution
Email address. See the BUGS file for details.
Added "help questions" to print the QUESTIONS help file.
If the environment variable $CALCHELP is defined and is non-empty,
then calc help files will be in the directory by the $CALCHISTFILE
environment variable.
If the environment variable $CALCCUSTOMHELP is defined and is
non-empty, then custom calc help files will be in the directory
by the $CALCCUSTOMHELP environment variable.
Fixed a number of typos in text and in source code comments.
The calc-tester mailing list has been retired. See:
* How to submit a calc bug report:
http://www.isthe.com/chongo/tech/comp/calc/calc-bugrept.html
* How to contribute code to calc:
http://www.isthe.com/chongo/tech/comp/calc/calc-contrib.html
* How to submit a question about calc:
http://www.isthe.com/chongo/tech/comp/calc/calc-question.html
Fixed a mistake in "help intro" where some inserted text
changed the value of "." and thus made the next result
incorrect.
Clarified in "help factor" that 1 is returned if no
factor below the limit was found.
Removed Makefile variable ${MAKEFILE_REV}.
The missing cscript/square.calc file has been restored.
Fixed compiler errors and warnings related to GCC.
In particular, gcc/9.3.1 and gcc/10.2.1 now compile
calc without any compiler errors or warnings,
even with -Werror -Wextra -pedantic.
To print out information about the calc compliation
environment, we added the following make rule:
make calcinfo
Improved how 'make debug' operates.
Moved help/contrib to CONTRIB-CODE. The help/contrib file
is now build from a copy of CONTRIB-CODE.
Created a new calc bug report Email address. Created a new calc
question Email address. Created a new calc contribution Email
address. See the BUGS file for details.
Added "help questions" to print the QUESIONS help file.
If the environment variable $CALCHELP is defined and is non-empty,
then calc help files will be in the direcgory by the $CALCHISTFILE
environment variable.
If the environment variable $CALCCUSTOMHELP is defined and is
non-empty, then custom calc help files will be in the direcgory
by the $CALCCUSTOMHELP environment variable.
The calc-tester mailing list has been retired. See:
* How to submit a calc bug report:
http://www.isthe.com/chongo/tech/comp/calc/calc-bugrept.html
* How to contribute code to calc:
http://www.isthe.com/chongo/tech/comp/calc/calc-contrib.html
* How to submit a question about calc:
http://www.isthe.com/chongo/tech/comp/calc/calc-question.html
Calc as defined 0^0 as 1. However in the past, 0 raised to
an expression that evaluted to zero returned 1. The result
was that 0^0 was different than 0^(6-6) or even 0^(0).
Now, calc will return 1 for 0^(0) and 0^zero when zero == 0.
By default, the calc history file is located in ~/.calc_history.
Now, if the environment variable $CALCHISTFILE is defined
and is non-empty, then calc history file will be defined
by the $CALCHISTFILE environment variable.
These changes are per calc version 2.12.7.3:
Requiring calc shell scripts to use -s -f at the end of the
initial #! line.
Fixed /tmp/mersenne example in calc(1) man page.
Added make variable ${ARCH_CFLAGS}. The ${ARCH_CFLAGS} is
added after ${CCMISC} and before ${EXTRA_CFLAGS} when building
the ${CFLAGS} for compiling C code. are ${CC} when compiling
C files. The default value is:
ARCH_CFLAGS= -march=native
which directs C compiler to compile for the native machine.
To disable use of '-march=native', set ARCH_CFLAGS to the empty
string as in:
make all ARCH_CFLAGS=
To make calc RPMs more portable, they are compiled with an
empty ARCH_CFLAGS.
These changes are per calc version 2.12.7.4:
Fixed issues relating to compiling on macOS. Fixed issues
where <unistd.h> is needed.
Requiring calc shell scripts to use -s -f at the end of the
initial #! line.
Fixed /tmp/mersenne example in calc(1) man page.
Added make variable ${ARCH_CFLAGS}. The ${ARCH_CFLAGS} is
added after ${CCMISC} and before ${EXTRA_CFLAGS} when building
the ${CFLAGS} for compiling C code. are ${CC} when compiling
C files. The default value is:
ARCH_CFLAGS= -march=native
which directs C compiler to compile for the native machine.
To disable use of '-march=native', set ARCH_CFLAGS to the empty
string as in:
make all ARCH_CFLAGS=
To make calc RPMs more portable, they are compiled with an
empty ARCH_CFLAGS.
Fixed issues relating to compiling on macOS. Fixed issues
where <unistd.h> is needed.
GCC 7 Added a warning for implicit fallthroughs in switch cases.
It's enabled by -Wextra, and treated as an error due to -Werror so
compilation fails on GCC 7 and higher.
See -Wimplicit-fallthrough in the GCC manual.
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
Sorry!
The following are the changes from calc version 2.12.7.0 to date:
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 0x0b in ASCII encoding
\r return byte 0x0a in ASCII encoding
\t tab byte 0x0d in ASCII encoding
\v vertical tab byte 0x09 in ASCII encoding
Regularized the case statements in qio.c, str.c, and token.c
that relate to escape characters.
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 0x0b in ASCII encoding
\r return byte 0x0a in ASCII encoding
\t tab byte 0x0d in ASCII encoding
\v vertical tab byte 0x09 in ASCII encoding
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 0x0b in ASCII encoding
\r return byte 0x0a in ASCII encoding
\t tab byte 0x0d in ASCII encoding
\v vertical tab byte 0x09 in ASCII encoding
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.
This code %g is preliminary.
Fixed some code style issues to match the current code style.
Added regression tests and help file updates to printf and strprintf.
Fixed use of magic number -4: using -P instead.
Noted two problem areas with XXX comments in qio.c:
1) need a qprintfg function
2) re-write to not modify conf->outdigits
