Mercurial > hg > octave-lojdl > gnulib-hg
changeset 17437:313b0d693d1e
ignore-value: port to gcc -pedantic
* lib/ignore-value.h (ignore_value):
Port to gcc -pedantic, by using __extension__.
Reindent as per usual gnulib style nowadays.
Simplify GCC version check.
| author | Paul Eggert <eggert@cs.ucla.edu> |
|---|---|
| date | Sun, 23 Jun 2013 11:51:27 -0700 |
| parents | 54c2b89ac5ec |
| children | 81999a590591 |
| files | ChangeLog lib/ignore-value.h |
| diffstat | 2 files changed, 15 insertions(+), 6 deletions(-) [+] |
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--- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,11 @@ +2013-06-23 Paul Eggert <eggert@cs.ucla.edu> + + ignore-value: port to gcc -pedantic + * lib/ignore-value.h (ignore_value): + Port to gcc -pedantic, by using __extension__. + Reindent as per usual gnulib style nowadays. + Simplify GCC version check. + 2013-06-21 Paul Eggert <eggert@cs.ucla.edu> extern-inline: port to gcc -std=c89
--- a/lib/ignore-value.h +++ b/lib/ignore-value.h @@ -33,15 +33,16 @@ declared with attribute warn_unused_result". */ #ifndef _GL_IGNORE_VALUE_H -# define _GL_IGNORE_VALUE_H +#define _GL_IGNORE_VALUE_H /* The __attribute__((__warn_unused_result__)) feature is available in gcc versions 3.4 and newer, while the typeof feature has been available since 2.7 at least. */ -# if __GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 4) -# define ignore_value(x) ((void) (x)) -# else -# define ignore_value(x) (({ __typeof__ (x) __x = (x); (void) __x; })) -# endif +#if 3 < __GNUC__ + (4 <= __GNUC_MINOR__) +# define ignore_value(x) \ + (__extension__ ({ __typeof__ (x) __x = (x); (void) __x; })) +#else +# define ignore_value(x) ((void) (x)) +#endif #endif