sys/base/bufio/get.c


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#include "internal.h"
#include "refill.h"

int
bufio·getbyte(io·Buffer *buf)
{
getbyte:
    if(buf->pos < buf->end)
        return *buf->pos++;

    memmove(buf->buf, buf->end - bufio·ungets, bufio·ungets);

    if(refill(buf) <= 0)
        return bufio·eof;

    goto getbyte;
}