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https://github.com/fluencelabs/musl
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400c5e5c83
to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
25 lines
732 B
C
25 lines
732 B
C
#include "stdio_impl.h"
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/* This function makes no attempt to protect the user from his/her own
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* stupidity. If called any time but when then ISO C standard specifically
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* allows it, all hell can and will break loose, especially with threads!
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*
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* This implementation ignores all arguments except the buffering type,
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* and uses the existing buffer allocated alongside the FILE object.
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* In the case of stderr where the preexisting buffer is length 1, it
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* is not possible to set line buffering or full buffering. */
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int setvbuf(FILE *restrict f, char *restrict buf, int type, size_t size)
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{
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f->lbf = EOF;
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if (type == _IONBF)
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f->buf_size = 0;
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else if (type == _IOLBF)
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f->lbf = '\n';
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f->flags |= F_SVB;
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return 0;
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}
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