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| author | Bruno Haible <bruno@clisp.org> | 2022-09-18 18:45:39 +0200 |
|---|---|---|
| committer | Bruno Haible <bruno@clisp.org> | 2022-09-18 21:24:36 +0200 |
| commit | 64b2b36762ac434e74bd5c65c1ac7a8fdd3c9788 (patch) | |
| tree | bfead63e01441b05841b33ef1d48842bba145293 | |
| parent | a945847ddc036d188e23a3e6cde7ba5364c628bf (diff) | |
| download | gnulib-64b2b36762ac434e74bd5c65c1ac7a8fdd3c9788.tar.gz | |
stdbool: Ensure that 'true' can be used in the preprocessor.
* lib/stdbool.in.h (true): Redefine if it does not evaluate to 1 in the
preprocessor.
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | lib/stdbool.in.h | 7 |
2 files changed, 13 insertions, 0 deletions
@@ -1,5 +1,11 @@ 2022-09-18 Bruno Haible <bruno@clisp.org> + stdbool: Ensure that 'true' can be used in the preprocessor. + * lib/stdbool.in.h (true): Redefine if it does not evaluate to 1 in the + preprocessor. + +2022-09-18 Bruno Haible <bruno@clisp.org> + signal: Fix a C++ compilation error due to sched_yield on OpenBSD 6.0. * lib/signal.in.h: On OpenBSD, include <sys/param.h>. Don't include <pthread.h> on OpenBSD ≥ 5.1. diff --git a/lib/stdbool.in.h b/lib/stdbool.in.h index b1613d4f02..125de5a25e 100644 --- a/lib/stdbool.in.h +++ b/lib/stdbool.in.h @@ -126,6 +126,13 @@ typedef enum { _Bool_must_promote_to_int = -1, false = 0, true = 1 } _Bool; # define false false # define true true # endif +/* In Sun C++ 5.11 (Solaris Studio 12.2) and older, 'true' as a preprocessor + expression evaluates to 0, not 1. Fix this by overriding 'true'. Note that + the replacement has to be of type 'bool'. */ +# if defined __SUNPRO_CC && true != 1 +# undef true +# define true (!false) +# endif #else # define false 0 # define true 1 |