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tuklib_mbstr_wrap: Add printf format attribute 

It's supported by GCC 3.x already.
This commit is contained in:
Lasse Collin 2025-01-04 14:41:37 +02:00
parent a7313c01d9
commit 63b246c90e
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2 changed files with 8 additions and 0 deletions
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7
src/common/tuklib_common.h
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@ -56,6 +56,13 @@
# define TUKLIB_GNUC_REQ(major, minor) 0 # define TUKLIB_GNUC_REQ(major, minor) 0
#endif #endif
#if defined(__GNUC__) || defined(__clang__)
# define tuklib_attr_format_printf(fmt_index, args_index) \
__attribute__((__format__(__printf__, fmt_index, args_index)))
#else
# define tuklib_attr_format_printf(fmt_index, args_index)
#endif
// tuklib_attr_noreturn attribute is used to mark functions as non-returning. // tuklib_attr_noreturn attribute is used to mark functions as non-returning.
// We cannot use "noreturn" as the macro name because then C23 code that // We cannot use "noreturn" as the macro name because then C23 code that
// uses [[noreturn]] would break as it would expand to [[ [[noreturn]] ]]. // uses [[noreturn]] would break as it would expand to [[ [[noreturn]] ]].

1
src/common/tuklib_mbstr_wrap.h
View File

@ -186,6 +186,7 @@ extern int tuklib_wraps(FILE *stream, const struct tuklib_wrap_opt *opt,
/// all strings have (hopefully) been printed. /// all strings have (hopefully) been printed.
#define tuklib_wrapf TUKLIB_SYMBOL(tuklib_wrapf) #define tuklib_wrapf TUKLIB_SYMBOL(tuklib_wrapf)
tuklib_attr_format_printf(3, 4)
extern int tuklib_wrapf(FILE *stream, const struct tuklib_wrap_opt *opt, extern int tuklib_wrapf(FILE *stream, const struct tuklib_wrap_opt *opt,
const char *fmt, ...); const char *fmt, ...);
///< ///<