lib/fbufmode.h

   1 /* Retrieve information about a FILE stream.
   2    Copyright (C) 2007, 2009-2025 Free Software Foundation, Inc.
   3
   4    This file is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU Lesser General Public License as
   6    published by the Free Software Foundation, either version 3 of the
   7    License, or (at your option) any later version.
   8
   9    This file is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 #include <stdio.h>
  18
  19 #ifdef __cplusplus
  20 extern "C" {
  21 #endif
  22
  23 /* Return the buffering mode of the stream STREAM.
  24
  25    Result    means
  26    ------   -------
  27    _IONBF  unbuffered
  28    _IOLBF  line buffered
  29    _IOFBF  fully buffered
  30
  31    STREAM must not be wide-character oriented.  */
  32 extern int fbufmode (FILE *stream);
  33
  34 #ifdef __cplusplus
  35 }
  36 #endif