shithub: scc

ref: 6ae1553550ce5ed7780482765cabacc3fa29a50d
dir: /lib/c/isalpha.c/

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#define __USE_MACROS
#include <ctype.h>
#undef isalpha

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