shithub: scc

ref: 45a3ec40329b2948edc3a4e94f1850ccd02f4f29
dir: /lib/c/src/toupper.c/

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

int
toupper(int c)
{
	return (islower(c)) ? c & ~0x20 : c;
}