kc3-lang/angle/src/common/angleutils.cpp

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• Hash : 86ffde57
  Author :
  Date : 2014-10-03T14:51:54
  

  Fix building angleutils.cpp on Linux
  
  vsnprintf is defined in stdio.h according to the standard. It was not in
  the include chain of angleutils.cpp, which broke the build on Linux on
  some configurations. Seems like other toolchains include the function in
  some non-standard way.
  
  BUG=angle:761
  
  Change-Id: Idcd75776e8a9b83dad182d1b4bac0beac006c6ac
  Reviewed-on: https://chromium-review.googlesource.com/221053
  Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Tested-by: Geoff Lang <geofflang@chromium.org>
  

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• src/common/angleutils.cpp

• //
  // Copyright (c) 2014 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  #include "common/angleutils.h"
  
  #include <stdio.h>
  #include <vector>
  
  std::string FormatString(const char *fmt, va_list vararg)
  {
      static std::vector<char> buffer(512);
  
      // Attempt to just print to the current buffer
      int len = vsnprintf(&buffer[0], buffer.size(), fmt, vararg);
      if (len < 0 || static_cast<size_t>(len) >= buffer.size())
      {
          // Buffer was not large enough, calculate the required size and resize the buffer
          len = vsnprintf(NULL, 0, fmt, vararg);
          buffer.resize(len + 1);
  
          // Print again
          vsnprintf(&buffer[0], buffer.size(), fmt, vararg);
      }
  
      return std::string(&buffer[0], len);
  }
  
  std::string FormatString(const char *fmt, ...)
  {
      va_list vararg;
      va_start(vararg, fmt);
      std::string result = FormatString(fmt, vararg);
      va_end(vararg);
      return result;
  }
  

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