libigl_Martin/include/igl/stdin_to_temp.cpp

// This file is part of libigl, a simple c++ geometry processing library.
// 
// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
// 
// This Source Code Form is subject to the terms of the Mozilla Public License 
// v. 2.0. If a copy of the MPL was not distributed with this file, You can 
// obtain one at http://mozilla.org/MPL/2.0/.
#include "stdin_to_temp.h"

#include <iostream>

IGL_INLINE bool igl::stdin_to_temp(FILE ** temp_file)
{
  // get a temporary file
  *temp_file = tmpfile();
  if(*temp_file == NULL)
  {
    fprintf(stderr,"IOError: temp file could not be created.\n");
    return false;
  }
  char c;
  // c++'s cin handles the stdind input in a reasonable way
  while (std::cin.good())
  {
    c = std::cin.get();
    if(std::cin.good())
    {
      if(1 != fwrite(&c,sizeof(char),1,*temp_file))
      {
        fprintf(stderr,"IOError: error writing to tempfile.\n");
        return false;
      }
    }
  }
  // rewind file getting it ready to read from
  rewind(*temp_file);
  return true;
}