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                                                            setbuffer(3C)



        _________________________________________________________________
        setbuffer                                                function
        Assign a buffer to a specified file.
        _________________________________________________________________


        Calling Sequence

        #include <stdio.h>
        FILE *fp;
        char *bufptr;
        int size;
        void setbuffer();
        setbuffer(fp, bufptr, size); (or) setbuffer(fp, NULL, size);

        where size is the size of the character array bufptr.


        Description

        The setbuffer function assigns a buffer to a file you specify;
        this function is an alternate form of setbuf.  If the buffer
        pointer bufptr is null (0), it specifies an unbuffered file and
        uses single byte I/O.  Otherwise, the routine assumes that the
        buffer can hold at least the number of characters specified by
        size.


        Returns

        The setbuffer function does not return a value.


        Related Functions

        See also the functions setbuf, setlinebuf, and setvbuf.


















        DG/UX 4.00                                                 Page 1
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