shithub: scc

ref: c40195789a26f30a3130d44f9ecd8758ea0eb0d4
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;
}