diff options
Diffstat (limited to 'boost/xpressive/detail/utility/tracking_ptr.hpp')
| -rw-r--r-- | boost/xpressive/detail/utility/tracking_ptr.hpp | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/boost/xpressive/detail/utility/tracking_ptr.hpp b/boost/xpressive/detail/utility/tracking_ptr.hpp index 7f29ba155d..aa88e74523 100644 --- a/boost/xpressive/detail/utility/tracking_ptr.hpp +++ b/boost/xpressive/detail/utility/tracking_ptr.hpp @@ -9,7 +9,7 @@ #define BOOST_XPRESSIVE_DETAIL_UTILITY_TRACKING_PTR_HPP_EAN_10_04_2005 // MS compatible compilers support #pragma once -#if defined(_MSC_VER) && (_MSC_VER >= 1020) +#if defined(_MSC_VER) # pragma once #endif @@ -434,18 +434,25 @@ struct tracking_ptr return this->impl_->self_; } + // smart-pointer operators #if defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, <= 0x530) - typedef bool unspecified_bool_type; + + operator bool() const + { + return this->impl_; + } + #else - typedef typename intrusive_ptr<element_type>::unspecified_bool_type unspecified_bool_type; - #endif - // smart-pointer operators + typedef intrusive_ptr<element_type> tracking_ptr::* unspecified_bool_type; + operator unspecified_bool_type() const { - return this->impl_; + return this->impl_ ? &tracking_ptr::impl_ : 0; } + #endif + bool operator !() const { return !this->impl_; |