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author | Remko Tronçon <git@el-tramo.be> | 2009-06-01 08:48:42 (GMT) |
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committer | Remko Tronçon <git@el-tramo.be> | 2009-06-01 09:24:28 (GMT) |
commit | 2812bddd81f8a1b804c7460f4e14cd0aa393d129 (patch) | |
tree | d46294f35150c4f0f43deaf2d31fceaf945ae715 /3rdParty/Boost/boost/smart_ptr/detail/operator_bool.hpp | |
download | swift-contrib-2812bddd81f8a1b804c7460f4e14cd0aa393d129.zip swift-contrib-2812bddd81f8a1b804c7460f4e14cd0aa393d129.tar.bz2 |
Import.
Diffstat (limited to '3rdParty/Boost/boost/smart_ptr/detail/operator_bool.hpp')
-rw-r--r-- | 3rdParty/Boost/boost/smart_ptr/detail/operator_bool.hpp | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/3rdParty/Boost/boost/smart_ptr/detail/operator_bool.hpp b/3rdParty/Boost/boost/smart_ptr/detail/operator_bool.hpp new file mode 100644 index 0000000..842a05d --- /dev/null +++ b/3rdParty/Boost/boost/smart_ptr/detail/operator_bool.hpp @@ -0,0 +1,56 @@ +// This header intentionally has no include guards. +// +// Copyright (c) 2001-2009 Peter Dimov +// +// 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 + +#if ( defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, < 0x570) ) || defined(__CINT__) + + operator bool () const + { + return px != 0; + } + +#elif defined( _MANAGED ) + + static void unspecified_bool( this_type*** ) + { + } + + typedef void (*unspecified_bool_type)( this_type*** ); + + operator unspecified_bool_type() const // never throws + { + return px == 0? 0: unspecified_bool; + } + +#elif \ + ( defined(__MWERKS__) && BOOST_WORKAROUND(__MWERKS__, < 0x3200) ) || \ + ( defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ < 304) ) || \ + ( defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, <= 0x590) ) + + typedef T * (this_type::*unspecified_bool_type)() const; + + operator unspecified_bool_type() const // never throws + { + return px == 0? 0: &this_type::get; + } + +#else + + typedef T * this_type::*unspecified_bool_type; + + operator unspecified_bool_type() const // never throws + { + return px == 0? 0: &this_type::px; + } + +#endif + + // operator! is redundant, but some compilers need it + bool operator! () const // never throws + { + return px == 0; + } |