typeof operators (since C23)
From cppreference.com
Determines the type of an object.
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[edit] Syntax
typeof( type )
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(1) | ||||||||
typeof( expression )
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(2) | ||||||||
typeof_unqual( type )
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(3) | ||||||||
typeof_unqual( expression )
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(4) | ||||||||
[edit] Explanation
1) produces the type-name with any nested typeof-specifier evaluated
2) yields the type-name representing the type of its operand. No implicit conversions are applied to expression.
3,4) the same as (1) and (2) respectively but remove qualifiers
[edit] Notes
typeof and typeof_unqual are collectively called the typeof operators. The typeof operators cannot be applied to bit-field members. If the type of the operand is a variably modified type, the operand is evaluated; otherwise, the operand is not evaluated. The result of the typeof_unqual operator is the non-atomic unqualified type that would result from the typeof operator. The typeof operator preserves all qualifiers.
[edit] Example
| This section is incomplete Reason: no example |
[edit] References
- C23 standard (ISO/IEC 9899:2024):
- 6.7.2.5 The typeof specifiers (p: 115-118)
[edit] See also
| C++ documentation for decltype
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