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changed C source to use C booleans with backward compatibility

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Fix "Under source code control" date for new version.h file.

Sorted the order of symbols printed by "make env".

Test if <stdbool.h> exists and set HAVE_STDBOOL_H accordingly
in have_stdbool.h.  Added HAVE_STDBOOL_H to allow one to force
this value.

Added "bool.h" include file to support use of boolean symbols,
true and false for pre-c99 C compilers.  The "bool.h" include
file defines TRUE as true, FALSE as false, and BOOL as bool:
for backward compatibility.

The sign in a ZVALUE is now of type SIGN, whcih is either
SB32 when CALC2_COMPAT is defined, or a bool.

Replaced in C source, TRUE with true, FALSE with false, and
BOOL with bool.
This commit is contained in:
Landon Curt Noll
2023-08-19 19:20:32 -07:00
parent e18b715f3f
commit 3c18e6e25b
71 changed files with 1267 additions and 1043 deletions
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12
Makefile.config
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@@ -705,6 +705,18 @@ HAVE_LIMITS_H=
#HAVE_LIMITS_H= YES
#HAVE_LIMITS_H= NO
# Determine if we have the <stdbool.h> include file.
#
# HAVE_STDBOOL_H= let the Makefile look for the include file
# HAVE_STDBOOL_H= YES assume that the include file exists
# HAVE_STDBOOL_H= NO assume that the include file does not exist
#
# When in doubt, leave HAVE_STDBOOL_H empty.
#
HAVE_STDBOOL_H=
#HAVE_STDBOOL_H= YES
#HAVE_STDBOOL_H= NO
# Determine if our compiler allows the unused attribute
#
# If HAVE_UNUSED is empty, this Makefile will run the have_unused program