shithub: scc

ref: 08a32f26c08c322c5549b94c05032d2e87f1df3c
dir: /src/libc/ctype/tolower.c/

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

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