shithub: scc

ref: 9b62b35493ec9d39704ca6c9a9e133a2f8e980fc
dir: /lib/c/src/tolower.c/

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

int
tolower(int c)
{
	return (isupper(c)) ? c | 0x20 : c;
}