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Added has_value()

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Andrzej Krzemienski
2018-03-24 00:04:15 +01:00
parent 33c7a6aa2b
commit 5182f7f30f
49 changed files with 119 additions and 59 deletions
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1
include/boost/optional/detail/optional_reference_spec.hpp
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@ -159,6 +159,7 @@ public:
void reset() BOOST_NOEXCEPT { ptr_ = 0; }
bool is_initialized() const BOOST_NOEXCEPT { return ptr_ != 0; }
bool has_value() const BOOST_NOEXCEPT { return ptr_ != 0; }
#ifndef BOOST_OPTIONAL_DETAIL_NO_RVALUE_REFERENCES

4
include/boost/optional/optional.hpp
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@ -375,7 +375,7 @@ class optional_base : public optional_tag
pointer_const_type get_ptr() const { return m_initialized ? get_ptr_impl() : 0 ; }
pointer_type get_ptr() { return m_initialized ? get_ptr_impl() : 0 ; }
bool is_initialized() const { return m_initialized ; }
bool is_initialized() const BOOST_NOEXCEPT { return m_initialized ; }
protected :
@ -1333,6 +1333,8 @@ class optional
}
#endif
bool has_value() const BOOST_NOEXCEPT { return this->is_initialized() ; }
bool operator!() const BOOST_NOEXCEPT { return !this->is_initialized() ; }
BOOST_EXPLICIT_OPERATOR_BOOL_NOEXCEPT()