diff options
Diffstat (limited to 'src/ctype/isalpha.c')
-rw-r--r-- | src/ctype/isalpha.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/ctype/isalpha.c b/src/ctype/isalpha.c new file mode 100644 index 00000000..53e115c2 --- /dev/null +++ b/src/ctype/isalpha.c @@ -0,0 +1,7 @@ +#include <ctype.h> +#undef isalpha + +int isalpha(int c) +{ + return ((unsigned)c|32)-'a' < 26; +} |