diff options
Diffstat (limited to 'libvpx/vpx/internal/vpx_codec_internal.h')
| -rw-r--r-- | libvpx/vpx/internal/vpx_codec_internal.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/libvpx/vpx/internal/vpx_codec_internal.h b/libvpx/vpx/internal/vpx_codec_internal.h index 961b0bfe4..670fe380e 100644 --- a/libvpx/vpx/internal/vpx_codec_internal.h +++ b/libvpx/vpx/internal/vpx_codec_internal.h @@ -435,9 +435,21 @@ struct vpx_internal_error_info { #endif #endif +// Tells the compiler to perform `printf` format string checking if the +// compiler supports it; see the 'format' attribute in +// <https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html>. +#define LIBVPX_FORMAT_PRINTF(string_index, first_to_check) +#if defined(__has_attribute) +#if __has_attribute(format) +#undef LIBVPX_FORMAT_PRINTF +#define LIBVPX_FORMAT_PRINTF(string_index, first_to_check) \ + __attribute__((__format__(__printf__, string_index, first_to_check))) +#endif +#endif + void vpx_internal_error(struct vpx_internal_error_info *info, - vpx_codec_err_t error, const char *fmt, - ...) CLANG_ANALYZER_NORETURN; + vpx_codec_err_t error, const char *fmt, ...) + LIBVPX_FORMAT_PRINTF(3, 4) CLANG_ANALYZER_NORETURN; #ifdef __cplusplus } // extern "C" |