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1 // boost/cstdlib.hpp header ------------------------------------------------// |
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2 |
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3 // Copyright Beman Dawes 2001. Distributed under the Boost |
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4 // Software License, Version 1.0. (See accompanying file |
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5 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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6 |
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7 // See http://www.boost.org/libs/utility/cstdlib.html for documentation. |
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8 |
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9 // Revision History |
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10 // 26 Feb 01 Initial version (Beman Dawes) |
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11 |
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12 #ifndef BOOST_CSTDLIB_HPP |
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13 #define BOOST_CSTDLIB_HPP |
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14 |
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15 #include <cstdlib> |
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16 |
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17 namespace boost |
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18 { |
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19 // The intent is to propose the following for addition to namespace std |
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20 // in the C++ Standard Library, and to then deprecate EXIT_SUCCESS and |
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21 // EXIT_FAILURE. As an implementation detail, this header defines the |
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22 // new constants in terms of EXIT_SUCCESS and EXIT_FAILURE. In a new |
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23 // standard, the constants would be implementation-defined, although it |
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24 // might be worthwhile to "suggest" (which a standard is allowed to do) |
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25 // values of 0 and 1 respectively. |
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26 |
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27 // Rationale for having multiple failure values: some environments may |
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28 // wish to distinguish between different classes of errors. |
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29 // Rationale for choice of values: programs often use values < 100 for |
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30 // their own error reporting. Values > 255 are sometimes reserved for |
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31 // system detected errors. 200/201 were suggested to minimize conflict. |
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32 |
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33 const int exit_success = EXIT_SUCCESS; // implementation-defined value |
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34 const int exit_failure = EXIT_FAILURE; // implementation-defined value |
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35 const int exit_exception_failure = 200; // otherwise uncaught exception |
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36 const int exit_test_failure = 201; // report_error or |
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37 // report_critical_error called. |
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38 } |
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39 |
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40 #endif |
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41 |