shithub: scc

ref: 10f5b25b7e6e3fda240c7b7046712c33e667fc33
dir: /src/libc/ctype/isupper.c/

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#include <ctype.h>
#undef isupper

int
isupper(int c)
{
	return (__ctype+1)[c] & _U;
}