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Annotation of researchv9/cmd/cfront/libC/stream/circbuf.c, revision 1.1

1.1     ! root        1: #include "stream.h"
        !             2: 
        !             3: /*
        !             4:  *     Come here on a put to a full buffer.  Allocate the buffer if 
        !             5:  *     it is uninitialized.
        !             6:  *     Returns:        EOF on error
        !             7:  *                     the input character on success
        !             8:  */
        !             9: virtual int circbuf.overflow(int c)
        !            10: {
        !            11:        if (allocate() == EOF) return EOF;
        !            12: 
        !            13:        pptr = base;
        !            14:        if (c != EOF) *pptr++ = c;
        !            15: 
        !            16:        return c & 0377;
        !            17: }
        !            18: 
        !            19: /*
        !            20:  *     Fill a buffer.
        !            21:  *     Returns:        EOF on error or end of input
        !            22:  *                     next character on success
        !            23:  */
        !            24: virtual int circbuf.underflow()
        !            25: {
        !            26:        return EOF;
        !            27: }

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