shithub: scc

ref: 3102bca6cc3346fec2531740b1af9bb3729ebc3e
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);
}