scc

simple c99 compiler
git clone git://git.simple-cc.org/scc
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setlocale.c (266B)

      1 #include <locale.h>
      2 
      3 #undef setlocale
      4 
      5 char *
      6 setlocale(int category, const char *locale)
      7 {
      8 	if (category > LC_TIME || category < LC_ALL)
      9 		return NULL;
     10 	if (!locale
     11 	|| locale[0] == '\0'
     12 	|| locale[0] == 'C' && locale[1] == '\0') {
     13 		return "C";
     14 	}
     15 	return NULL;
     16 }