shithub: scc

ref: 96cd94f4d8de6ab57ff45382f12c740b062d8a21
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);
}