src/system/libroot/posix/stdio/fpurge.cpp

   1 /*
   2  * Copyright 2008, Ingo Weinhold, ingo_weinhold@gmx.de.
   3  * Distributed under the terms of the MIT License.
   4  */
   5
   6 #include <libio.h>
   7 #include <stdio_ext.h>
   8 #include <stdlib.h>
   9
  10
  11 int
  12 fpurge(FILE* stream)
  13 {
  14         // purge read and write buffers
  15         stream->_IO_read_end = stream->_IO_read_ptr;
  16         stream->_IO_write_ptr = stream->_IO_write_base;
  17
  18         // free ungetc buffer
  19         if (stream->_IO_save_base != NULL) {
  20                 free(stream->_IO_save_base);
  21                 stream->_IO_save_base = NULL;
  22         }
  23
  24         return 0;
  25 }
  26
  27
  28 void
  29 __fpurge(FILE* stream)
  30 {
  31         fpurge(stream);
  32 }