kc3-lang/gnulib/lib/freadahead.h

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• Hash : 281b825e
  Author :
  Date : 2018-01-01T00:57:25
  

  maint: Run 'make update-copyright'
  

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• lib/freadahead.h

• /* Retrieve information about a FILE stream.
     Copyright (C) 2007-2018 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 3 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  
  #include <stddef.h>
  #include <stdio.h>
  
  /* Assuming the stream STREAM is open for reading:
     Return the number of bytes waiting in the input buffer of STREAM.
     This includes both the bytes that have been read from the underlying input
     source and the bytes that have been pushed back through 'ungetc'.
  
     If this number is 0 and the stream is not currently writing,
     fflush (STREAM) is known to be a no-op.
  
     STREAM must not be wide-character oriented.  */
  
  #if HAVE___FREADAHEAD /* musl libc */
  
  # include <stdio_ext.h>
  # define freadahead(stream) __freadahead (stream)
  
  #else
  
  # ifdef __cplusplus
  extern "C" {
  # endif
  
  extern size_t freadahead (FILE *stream) _GL_ATTRIBUTE_PURE;
  
  # ifdef __cplusplus
  }
  # endif
  
  #endif
  

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