std::real(std::complex)
Defined in header <complex> | ? | ? |
|---|---|---|
template< class T > T real( const complex<T>& z ); | (1) | (until C++14) |
template< class T > constexpr T real( const complex<T>& z ); | (1) | (since C++14) |
long double real( long double z ); | (2) | (since C++11) |
template< class DoubleOrInteger > double real( DoubleOrInteger z ); | (3) | (since C++11) |
float real( float z ); | (4) | (since C++11) |
返回复数的真实分量。z，即.z.real()...
额外超载float，，，double，，，long double，以及所有整数类型，它们被视为零虚分量的复数。%28自C++11%29。
参数
z | - | complex value |
|---|
返回值
真正的成分z...
另见
real | accesses the real part of the complex number (public member function) |
|---|---|
imag | returns the imaginary component (function template) |
C.CREAL文件
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