musl/src/stdio/fwide.c
2011-02-12 00:22:29 -05:00

11 lines
194 B
C

#include "stdio_impl.h"
#define SH (8*sizeof(int)-1)
#define NORMALIZE(x) ((x)>>SH | -((-(x))>>SH))
int fwide(FILE *f, int mode)
{
if (!f->mode) f->mode = NORMALIZE(mode);
return f->mode;
}