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    #include <cstdio>
    int setvbuf( FILE *stream, char *buffer, int mode, size_t size );

The function setvbuf() sets the buffer for stream to be buffer, with a size of size. mode can be:

* _IOFBF, which indicates full buffering * _IOLBF, which means line buffering * _IONBF, which means no buffering

Related Topics: setbuf

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