diff -r e1b950c65cb4 -r 837f303aceeb epoc32/include/stdapis/boost/detail/workaround.hpp --- a/epoc32/include/stdapis/boost/detail/workaround.hpp Wed Mar 31 12:27:01 2010 +0100 +++ b/epoc32/include/stdapis/boost/detail/workaround.hpp Wed Mar 31 12:33:34 2010 +0100 @@ -1,19 +1,74 @@ +// Copyright David Abrahams 2002. +// 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) +#ifndef WORKAROUND_DWA2002126_HPP +# define WORKAROUND_DWA2002126_HPP -#ifndef BOOST_MPL_AUX_CONFIG_WORKAROUND_HPP_INCLUDED -#define BOOST_MPL_AUX_CONFIG_WORKAROUND_HPP_INCLUDED +// Compiler/library version workaround macro +// +// Usage: +// +// #if BOOST_WORKAROUND(BOOST_MSVC, < 1300) +// // workaround for eVC4 and VC6 +// ... // 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) < 1300 +// +// 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. -// Copyright Aleksey Gurtovoy 2002-2004 +# 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. // -// 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) +// 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 // -// See http://www.boost.org/libs/mpl for documentation. +// 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 +// -// $Source: /cvsroot/boost/boost/boost/mpl/aux_/config/workaround.hpp,v $ -// $Date: 2004/09/02 15:40:45 $ -// $Revision: 1.3 $ +# 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 -#include +# else -#endif // BOOST_MPL_AUX_CONFIG_WORKAROUND_HPP_INCLUDED +# define BOOST_WORKAROUND(symbol, test) 0 + +# endif + +#endif // WORKAROUND_DWA2002126_HPP