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3rdparty/boost_1_81_0/boost/cstdlib.hpp 1.7 KB
598bfd3f   Hu Chunming   提交_GLIBCXX_USE_CX...
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  //  boost/cstdlib.hpp header  ------------------------------------------------//
  
  //  Copyright Beman Dawes 2001.  Distributed under the Boost
  //  Software License, Version 1.0. (See accompanying file
  //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  
  //  See http://www.boost.org/libs/utility/cstdlib.html for documentation.
  
  //  Revision History
  //   26 Feb 01  Initial version (Beman Dawes)
  
  #ifndef BOOST_CSTDLIB_HPP
  #define BOOST_CSTDLIB_HPP
  
  #include <cstdlib>
  
  namespace boost
  {
     //  The intent is to propose the following for addition to namespace std
     //  in the C++ Standard Library, and to then deprecate EXIT_SUCCESS and
     //  EXIT_FAILURE.  As an implementation detail, this header defines the
     //  new constants in terms of EXIT_SUCCESS and EXIT_FAILURE.  In a new
     //  standard, the constants would be implementation-defined, although it
     //  might be worthwhile to "suggest" (which a standard is allowed to do)
     //  values of 0 and 1 respectively.
  
     //  Rationale for having multiple failure values: some environments may
     //  wish to distinguish between different classes of errors.
     //  Rationale for choice of values: programs often use values < 100 for
     //  their own error reporting.  Values > 255 are sometimes reserved for
     //  system detected errors.  200/201 were suggested to minimize conflict.
  
     const int exit_success = EXIT_SUCCESS;  // implementation-defined value
     const int exit_failure = EXIT_FAILURE;  // implementation-defined value
     const int exit_exception_failure = 200; // otherwise uncaught exception
     const int exit_test_failure = 201;      // report_error or
                                             //  report_critical_error called.
  }
  
  #endif