/* $Id: ibuf_getc.c 624 2005-08-23 18:21:54Z bruce $ */
#include "ibuf.h"

/** Retrieve a single character from the \c ibuf. */
int ibuf_getc(ibuf* in, char* ch)
{
  iobuf* io;
  io = &(in->io);
  in->count = 0;
  if (ibuf_eof(in) || ibuf_error(in)) return 0;
  if (io->bufstart >= io->buflen && !ibuf_refill(in)) return 0;
  *ch = io->buffer[io->bufstart++];
  in->count = 1;
  return 1;
}

#ifdef SELFTEST_MAIN
#include <unistd.h>
#include "selftest.c"

ibuf in = {
  { -1, "abcde", 5, 5, 0, 0, 0, 0, 0 },
  0, (ibuf_fn)read
};

MAIN
{
  char ch;
  while (ibuf_getc(&in, &ch))
    obuf_putf(&outbuf, "c\\\n", ch);
}
#endif
#ifdef SELFTEST_EXP
a
b
c
d
e
#endif