shithub: scc

ref: 8e0079cd303a4842c373fcf0b782c5b78ef6e43e
dir: /lib/c/toupper.c/

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

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