std::type_index::operator==,!=,<,<=,>,>=,<=>
< cpp | types | type index
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bool operator==( const type_index& rhs ) const noexcept;
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(1) | (since C++11) |
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bool operator!=( const type_index& rhs ) const noexcept;
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(2) | (since C++11) (until C++20) |
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bool operator<( const type_index& rhs ) const noexcept;
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(3) | (since C++11) |
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bool operator<=( const type_index& rhs ) const noexcept;
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(4) | (since C++11) |
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bool operator>( const type_index& rhs ) const noexcept;
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(5) | (since C++11) |
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bool operator>=( const type_index& rhs ) const noexcept;
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(6) | (since C++11) |
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std::strong_ordering operator<=>( const type_index& rhs ) const noexcept;
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(7) | (since C++20) |
Compares the underlying std::type_info objects.
1-2) Checks whether the underlying std::type_info objects refer to the same type.
3-7) Compares the underlying std::type_info objects as defined by an implementation-defined ordering. The comparison is done by type_info::before.
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The |
(since C++20) |
Parameters
| rhs | - | another type_index object to compare to |
Return value
3-6) true if the types referred by the underlying std::type_info objects are ordered by corresponding order, false otherwise.
7) std::strong_ordering::equal if the underlying std::type_info objects refer to the same type, otherwise std::strong_ordering::less if *this's underlying std::type_info object precedes
rhs's in the implementation-defined ordering, otherwise std::strong_ordering::greater.