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40 lines
1.3 KiB
C++
40 lines
1.3 KiB
C++
// Copyright David Abrahams 2002. Permission to copy, use,
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// modify, sell and distribute this software is granted provided this
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// copyright notice appears in all copies. This software is provided
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// "as is" without express or implied warranty, and with no claim as
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// to its suitability for any purpose.
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#ifndef WORKAROUND_DWA2002126_HPP
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# define WORKAROUND_DWA2002126_HPP
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// Compiler/library version workaround macro
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//
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// Usage:
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//
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// #if BOOST_WORKAROUND(BOOST_MSVC, <= 1200)
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// ... // workaround code here
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// #endif
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//
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// When BOOST_STRICT_CONFIG is defined, expands to 0. Otherwise, the
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// first argument must be undefined or expand to a numeric
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// value. The above expands to:
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//
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// (BOOST_MSVC) != 0 && (BOOST_MSVC) <= 1200
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//
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// When used for workarounds on the latest known version of a
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// compiler, the following convention should be observed:
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//
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// #if BOOST_WORKAROUND(BOOST_MSVC, |0x1301)
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//
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// The version number in this case corresponds to the last version in
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// which the workaround was known to have been required. It only has
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// value as a comment, since the outcome of the test is always 1
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// unless BOOST_STRICT_CONFIG is defined.
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# ifndef BOOST_STRICT_CONFIG
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# define BOOST_WORKAROUND(symbol, test) ((symbol) != 0 && ((symbol) test))
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# else
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# define BOOST_WORKAROUND(symbol, test) 0
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# endif
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#endif // WORKAROUND_DWA2002126_HPP
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