mirror of
https://github.com/mpv-player/mpv
synced 2024-12-18 04:45:33 +00:00
9a210ca2d5
Something like "char *s = ...; isdigit(s[0]);" triggers undefined behavior, because char can be signed, and thus s[0] can be a negative value. The is*() functions require unsigned char _or_ EOF. EOF is a special value outside of unsigned char range, thus the argument to the is*() functions can't be a char. This undefined behavior can actually trigger crashes if the implementation of these functions e.g. uses lookup tables, which are then indexed with out-of-range values. Replace all <ctype.h> uses with our own custom mp_is*() functions added with misc/ctype.h. As a bonus, these functions are locale-independent. (Although currently, we _require_ C locale for other reasons.) |
||
---|---|---|
.. | ||
charset_conv.c | ||
charset_conv.h | ||
ctype.h | ||
dispatch.c | ||
dispatch.h | ||
ring.c | ||
ring.h |