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qAsConst для Qt < 5.7

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This commit is contained in:
Andrei Astafev 2019-10-08 06:48:18 +03:00
parent 424c669eb6
commit e257c339d6
1 changed files with 11 additions and 2 deletions
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13
src/base/config.hpp
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@ -19,7 +19,16 @@ struct QOverload
return( pmf ); return( pmf );
} }
}; };
#endif
#endif // this adds const to non-const objects (like std::as_const)
template < typename T >
Q_DECL_CONSTEXPR typename std::add_const< T >::type& qAsConst( T& t ) noexcept { return( t ); }
// prevent rvalue arguments:
template < typename T >
void qAsConst( const T&& ) = delete;
#endif // if QT_VERSION <= 0x050700
#endif // if ( defined ( TARGET_LSB_ID_AstraLinuxSE ) && defined ( TARGET_LSB_CODENAME_smolensk ) )
#endif // MYX_BASE_CONFIG_HPP_ #endif // MYX_BASE_CONFIG_HPP_