fix fesetenv(FE_DFL_ENV) on x86_64 (see previous commit)
[musl] / src / ctype / isalpha.c
1 #include <ctype.h>
2 #undef isalpha
3
4 int isalpha(int c)
5 {
6         return ((unsigned)c|32)-'a' < 26;
7 }