ANSI/ISO C guarantee this, yet there is evidence that there exist platforms where its not so. See: http://www.cs.utah.edu/dept/old/texinfo/glibc-manual-0.02/library_30.html
Unified · Split
| @@ -40,6 +40,8 @@ unsigned avutil_version(void) · 39 unmodified lines | |||
| 40 | av_assert0(LIBAVUTIL_VERSION_MICRO >= 100); | 40 | av_assert0(LIBAVUTIL_VERSION_MICRO >= 100); |
| 41 | av_assert0(HAVE_MMX2 == HAVE_MMXEXT); | 41 | av_assert0(HAVE_MMX2 == HAVE_MMXEXT); |
| 42 | 42 | ||
| 43 | av_assert0(((size_t)-1) > 0); // C gurantees this but if false on a platform we care about revert at least b284e1ffe343d6697fb950d1ee517bafda8a9844 | ||
| 44 | |||
| 43 | if (av_sat_dadd32(1, 2) != 5) { | 45 | if (av_sat_dadd32(1, 2) != 5) { |
| 44 | av_log(NULL, AV_LOG_FATAL, "Libavutil has been build with a broken binutils, please upgrade binutils and rebuild\n"); | 46 | av_log(NULL, AV_LOG_FATAL, "Libavutil has been build with a broken binutils, please upgrade binutils and rebuild\n"); |
| 45 | abort(); | 47 | abort(); |