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support linux kernel apis (new archs) with old syscalls removed
[oweals/musl.git]
/
src
/
stdio
/
fwide.c
1
#include <wchar.h>
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#include "stdio_impl.h"
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#define SH (8*sizeof(int)-1)
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#define NORMALIZE(x) ((x)>>SH | -((-(x))>>SH))
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int fwide(FILE *f, int mode)
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{
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FLOCK(f);
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if (!f->mode) mode = f->mode = NORMALIZE(mode);
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FUNLOCK(f);
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return mode;
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}