std::complex<T>::real
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(since C++20) | |
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| (1) | ||
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(until C++11) | |
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(since C++11) | |
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(until C++20) | |
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(since C++20) | |
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| (1) | ||
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(until C++11) | |
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(since C++11) | |
| (2) | ||
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(until C++20) | |
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(since C++20) | |
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| (1) | ||
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(until C++11) | |
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(since C++11) | |
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(since C++20) |
Accesses the real part of the complex number.
1) Returns the real part.
2) Sets the real part to
value.
Parameters
| value | - | the value to set the real part to |
Return value
1) The real part of
*this.
2) (none)
Notes
In C++11, overload (1) in std::complex specializations used to be specified without const qualifier. However, in C++11, a constexpr specifier used in a non-static member function implies const, and thus the behavior is as if const is specified.
Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
| DR | Applied to | Behavior as published | Correct behavior |
|---|---|---|---|
| LWG 387 | C++98 | the real part could not be set directly | can be set directly via a new real overload |
See also
| returns the real part (function template) |
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| accesses the imaginary part of the complex number (public member function) |
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