shithub: scc

ref: 0f5c99c02edde1295a1be0592aaf6844f7c9cacc
dir: /lib/c/tolower.c/

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

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