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fix assumption in fputs that fwrite returning 0 implies an error
[oweals/musl.git]
/
src
/
stdio
/
__overflow.c
1
#include "stdio_impl.h"
2
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int __overflow(FILE *f, int _c)
4
{
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unsigned char c = _c;
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if (!f->wend && __towrite(f)) return EOF;
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if (f->wpos < f->wend && c != f->lbf) return *f->wpos++ = c;
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if (f->write(f, &c, 1)!=1) return EOF;
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return c;
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}