libigl/include/igl/file_utils.cpp

// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2020 Jérémie Dumas <[email protected]>
//
// 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 "file_utils.h"

#include <cstring>

namespace igl {

IGL_INLINE void read_file_binary(FILE *fp,
                                 std::vector<uint8_t> &fileBufferBytes) {
  if (!ferror(fp)) {
    fseek(fp, 0, SEEK_END);
    size_t sizeBytes = ftell(fp);
    fseek(fp, 0, SEEK_SET);
    fileBufferBytes.resize(sizeBytes);

    if (fread((char*)fileBufferBytes.data(), 1, sizeBytes, fp) == sizeBytes) {
      fclose(fp);
      return;
    }
  }

  throw std::runtime_error("error reading from file");
}

}