ref: 4eaac6bfb11cc84259e8b418d4babffdf1c637eb
dir: /lib/c/locale/setlocale.c/
#include <locale.h>
#include <stddef.h>
#undef setlocale
char *
setlocale(int category, const char *locale)
{
if (category > LC_TIME || category < LC_ALL)
return NULL;
if (!locale ||
locale[0] == '\0' ||
locale[0] == 'C' && locale[1] == '\0') {
return "C";
}
return NULL;
}