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author | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2014-07-23 15:25:44 +0200 |
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committer | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2014-07-23 15:25:44 +0200 |
commit | 8286ac511144e4f17d34eac9affb97e50646344a (patch) | |
tree | f1af7320d7b6be6be059216d0ad08ac7b4f73fd0 /libcutl/cutl/details/boost/smart_ptr/detail/operator_bool.hpp | |
parent | a15cf65c44d5c224169c32ef5495b68c758134b7 (diff) |
Imported Upstream version 4.0.0upstream/4.0.0
Diffstat (limited to 'libcutl/cutl/details/boost/smart_ptr/detail/operator_bool.hpp')
-rw-r--r-- | libcutl/cutl/details/boost/smart_ptr/detail/operator_bool.hpp | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/libcutl/cutl/details/boost/smart_ptr/detail/operator_bool.hpp b/libcutl/cutl/details/boost/smart_ptr/detail/operator_bool.hpp new file mode 100644 index 0000000..8ae1527 --- /dev/null +++ b/libcutl/cutl/details/boost/smart_ptr/detail/operator_bool.hpp @@ -0,0 +1,63 @@ +// This header intentionally has no include guards. +// +// Copyright (c) 2001-2009, 2012 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( BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS ) && !defined( BOOST_NO_CXX11_NULLPTR ) + + explicit operator bool () const BOOST_NOEXCEPT + { + return px != 0; + } + +#elif ( defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, < 0x570) ) || defined(__CINT__) + + operator bool () const BOOST_NOEXCEPT + { + return px != 0; + } + +#elif defined( _MANAGED ) + + static void unspecified_bool( this_type*** ) + { + } + + typedef void (*unspecified_bool_type)( this_type*** ); + + operator unspecified_bool_type() const BOOST_NOEXCEPT + { + 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 element_type * (this_type::*unspecified_bool_type)() const; + + operator unspecified_bool_type() const BOOST_NOEXCEPT + { + return px == 0? 0: &this_type::get; + } + +#else + + typedef element_type * this_type::*unspecified_bool_type; + + operator unspecified_bool_type() const BOOST_NOEXCEPT + { + return px == 0? 0: &this_type::px; + } + +#endif + + // operator! is redundant, but some compilers need it + bool operator! () const BOOST_NOEXCEPT + { + return px == 0; + } |