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10a17dfbad
internally, the idiom of passing nmemb=1 to fwrite and interpreting the return value of fwrite (which is necessarily 0 or 1) as failure/success is fairly widely used. this is not correct, however, when the size argument is unknown and may be zero, since C requires fwrite to return 0 in that special case. previously fwrite always returned nmemb on success, but this was changed for conformance with ISO C by commit 500c6886c654fd45e4926990fee2c61d816be197.
11 lines
197 B
C
11 lines
197 B
C
#include "stdio_impl.h"
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#include <string.h>
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int fputs(const char *restrict s, FILE *restrict f)
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{
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size_t l = strlen(s);
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return (fwrite(s, 1, l, f)==l) - 1;
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}
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weak_alias(fputs, fputs_unlocked);
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