shithub: scc

ref: 3aa27c3da9cf49c6f8082f09a295b7cf241c9a65
dir: /src/libc/ctype/isalpha.c/

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#include <ctype.h>
#undef isalpha

int
isalpha(int c)
{
	return (__ctype+1)[c] & (_U|_L);
}