std::type_index::operator==,!=,<,<=,>,>=,<=>
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< cpp | types | type index
C++
Utilities library
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Type support
Basic types | |||||||||||||||||||||
Fixed width integer types (C++11) | |||||||||||||||||||||
Fixed width floating-point types (C++23) | |||||||||||||||||||||
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Numeric limits | |||||||||||||||||||||
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Runtime type information | |||||||||||||||||||||
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std::type_index
Member functions | ||||
type_index::operator=
type_index::operator!=
type_index::operator<
type_index::operator<=
type_index::operator>
type_index::operator>=
type_index::operator<=>
(until C++20)(C++20)
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Helper classes | ||||
(C++11)
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bool operator==
(
const type_index& rhs )
const
noexcept
;
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(1) | (since C++11) |
bool operator!
=
(
const type_index& rhs )
const
noexcept
;
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(2) | (since C++11) (until C++20) |
bool operator<
(
const type_index& rhs )
const
noexcept
;
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(3) | (since C++11) |
bool operator<=
(
const type_index& rhs )
const
noexcept
;
|
(4) | (since C++11) |
bool operator>
(
const type_index& rhs )
const
noexcept
;
|
(5) | (since C++11) |
bool operator>=
(
const type_index& rhs )
const
noexcept
;
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(6) | (since C++11) |
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
The |
(since C++20) |
Parameters
rhs | - | another type_index object to compare to
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Return value
3-6)
true if the types referred by the underlying std::type_info objects are ordered by corresponding order, false
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