std::complex<T>::complex
| 初等模板 complex<T> |
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| complex( const T& re = T(), const T& im = T() ); |
(1) | (C++14 前) |
| constexpr complex( const T& re = T(), const T& im = T() ); |
(1) | (C++14 起) |
| complex( const complex& other ); |
(2) | (C++14 前) |
| constexpr complex( const complex& other ); |
(2) | (C++14 起) |
| template< class X > complex( const complex<X>& other); |
(3) | (C++14 前) |
| template< class X > constexpr complex( const complex<X>& other); |
(3) | (C++14 起) |
| 特化 complex<float> |
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| complex(float re = 0.0f, float im = 0.0f); |
(1) | (C++11 前) |
| constexpr complex(float re = 0.0f, float im = 0.0f); |
(1) | (C++11 起) |
| explicit complex(const complex<double>& other); explicit complex(const complex<long double>& other); |
(3) | (C++11 前) |
| explicit constexpr complex(const complex<double>& other); explicit constexpr complex(const complex<long double>& other); |
(3) | (C++11 起) |
| 特化 complex<double> |
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| complex(double re = 0.0, double im = 0.0); |
(1) | (C++11 前) |
| constexpr complex(double re = 0.0, double im = 0.0); |
(1) | (C++11 起) |
| complex(const complex<float>& other); explicit complex(const complex<long double>& other); |
(3) | (C++11 前) |
| constexpr complex(const complex<float>& other); explicit constexpr complex(const complex<long double>& other); |
(3) | (C++11 起) |
| 特化 complex<long double> |
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| complex(long double re = 0.0L, long double im = 0.0L); |
(1) | (C++11 前) |
| constexpr complex(long double re = 0.0L, long double im = 0.0L); |
(1) | (C++11 起) |
| complex(const complex<float>& other); complex(const complex<double>& other); |
(3) | (C++11 前) |
| constexpr complex(const complex<float>& other); constexpr complex(const complex<double>& other); |
(3) | (C++11 起) |
构造 std::complex 对象。
1) 从实部和虚部构造复数。
2) 复制构造函数。以
other 内容的副本构造复数。复制构造函数在标准特化中为隐式。3) 转化构造函数。从不同类型的复数构造对象。
参数
| re | - | 实部 |
| im | - | 虚部 |
| other | - | 用作源的另一复数 |
参阅
| 赋值内容 (公开成员函数) | |
| 表示纯虚数的 std::complex 字面量 (函数) |