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Diffstat (limited to 'src/boost/detail/workaround.hpp')
| -rw-r--r-- | src/boost/detail/workaround.hpp | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/src/boost/detail/workaround.hpp b/src/boost/detail/workaround.hpp deleted file mode 100644 index 0d5a2b2bcbe9..000000000000 --- a/src/boost/detail/workaround.hpp +++ /dev/null @@ -1,74 +0,0 @@ -// Copyright David Abrahams 2002. Permission to copy, use, -// modify, sell and distribute this software is granted provided this -// copyright notice appears in all copies. This software is provided -// "as is" without express or implied warranty, and with no claim as -// to its suitability for any purpose. -#ifndef WORKAROUND_DWA2002126_HPP -# define WORKAROUND_DWA2002126_HPP - -// Compiler/library version workaround macro -// -// Usage: -// -// #if BOOST_WORKAROUND(BOOST_MSVC, <= 1200) -// ... // workaround code here -// #endif -// -// When BOOST_STRICT_CONFIG is defined, expands to 0. Otherwise, the -// first argument must be undefined or expand to a numeric -// value. The above expands to: -// -// (BOOST_MSVC) != 0 && (BOOST_MSVC) <= 1200 -// -// When used for workarounds that apply to the latest known version -// and all earlier versions of a compiler, the following convention -// should be observed: -// -// #if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1301)) -// -// The version number in this case corresponds to the last version in -// which the workaround was known to have been required. When -// BOOST_DETECT_OUTDATED_WORKAROUNDS is not the defined, the macro -// BOOST_TESTED_AT(x) expands to "!= 0", which effectively activates -// the workaround for any version of the compiler. When -// BOOST_DETECT_OUTDATED_WORKAROUNDS is defined, a compiler warning or -// error will be issued if the compiler version exceeds the argument -// to BOOST_TESTED_AT(). This can be used to locate workarounds which -// may be obsoleted by newer versions. - -# ifndef BOOST_STRICT_CONFIG - -# define BOOST_WORKAROUND(symbol, test) \ - ((symbol != 0) && (1 % (( (symbol test) ) + 1))) -// ^ ^ ^ ^ -// The extra level of parenthesis nesting above, along with the -// BOOST_OPEN_PAREN indirection below, is required to satisfy the -// broken preprocessor in MWCW 8.3 and earlier. -// -// The basic mechanism works as follows: -// (symbol test) + 1 => if (symbol test) then 2 else 1 -// 1 % ((symbol test) + 1) => if (symbol test) then 1 else 0 -// -// The complication with % is for cooperation with BOOST_TESTED_AT(). -// When "test" is BOOST_TESTED_AT(x) and -// BOOST_DETECT_OUTDATED_WORKAROUNDS is #defined, -// -// symbol test => if (symbol <= x) then 1 else -1 -// (symbol test) + 1 => if (symbol <= x) then 2 else 0 -// 1 % ((symbol test) + 1) => if (symbol <= x) then 1 else divide-by-zero -// - -# ifdef BOOST_DETECT_OUTDATED_WORKAROUNDS -# define BOOST_OPEN_PAREN ( -# define BOOST_TESTED_AT(value) > value) ?(-1): BOOST_OPEN_PAREN 1 -# else -# define BOOST_TESTED_AT(value) != ((value)-(value)) -# endif - -# else - -# define BOOST_WORKAROUND(symbol, test) 0 - -# endif - -#endif // WORKAROUND_DWA2002126_HPP |