From Cppreference
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int setvbuf( FILE *stream, char *buffer, int mode, size_t size );
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Sets the internal buffer of the given file stream stream.
[edit] Parameters
stream
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the file stream to set the buffer to
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buffer
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pointer to a buffer for the stream to use
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mode
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buffering mode to use. It can be one of the following values:
_IOFBF
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full buffering
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_IOLBF
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line buffering
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_IONBF
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no buffering
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size
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-
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size of the buffer
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[edit] Return value
(none)
[edit] See also
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sets the buffer for a file stream (function)
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