operator==,!=(std::complex)

 

C++

Language

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Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Filesystem library (C++17)

Technical Specifications

 

Numerics library

Common mathematical functions

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Complex numbers

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Compile-time rational arithmetic (C++11)

Numeric algorithms

gcd (C++17)

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Generic numeric operations

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accumulate

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partial_sum

 

std::complex

Member functions
complex::complex
complex::operator=
complex::real
complex::imag
complex::operator+=complex::operator-=complex::operator*=complex::operator/=
Non-member functions
operator+operator- operator+operator-operator*operator/ operator==operator!= operator<<operator>>	real imag abs arg norm conj proj (C++11) polar operator""ioperator""ifoperator""il (C++14)(C++14)(C++14)
Exponential functions
exp
log
log10
Power functions
pow
sqrt
Trigonometric functions
sin cos tan	asin (C++11) acos (C++11) atan (C++11)
Hyperbolic functions
sinh cosh tanh	asinh (C++11) acosh (C++11) atanh (C++11)

 

Defined in header <complex>
template< class T > bool operator==( const complex<T>& lhs, const complex<T>& rhs);	(1)	(until C++14)
template< class T > constexpr bool operator==( const complex<T>& lhs, const complex<T>& rhs);	(1)	(since C++14)
template< class T > bool operator==( const complex<T>& lhs, const T& rhs);	(2)	(until C++14)
template< class T > constexpr bool operator==( const complex<T>& lhs, const T& rhs);	(2)	(since C++14)
template< class T > bool operator==( const T& lhs, const complex<T>& rhs);	(3)	(until C++14)
template< class T > constexpr bool operator==( const T& lhs, const complex<T>& rhs);	(3)	(since C++14)
template< class T > bool operator!=( const complex<T>& lhs, const complex<T>& rhs);	(4)	(until C++14)
template< class T > constexpr bool operator!=( const complex<T>& lhs, const complex<T>& rhs);	(4)	(since C++14)
template< class T > bool operator!=( const complex<T>& lhs, const T& rhs);	(5)	(until C++14)
template< class T > constexpr bool operator!=( const complex<T>& lhs, const T& rhs);	(5)	(since C++14)
template< class T > bool operator!=( const T& lhs, const complex<T>& rhs);	(6)	(until C++14)
template< class T > constexpr bool operator!=( const T& lhs, const complex<T>& rhs);	(6)	(since C++14)

Compares two complex numbers. Scalar arguments are treated as complex numbers with the real part equal to the argument and the imaginary part set to zero.

1-3) Compares lhs and rhs for equality.

4-6) Compares lhs and rhs for inequality.

Parameters

lhs, rhs

-

the arguments to compare: either both complex numbers or one complex and one scalar of matching type (float, double, long double)

Return value

1-3) true if respective parts of lhs are equal to rhs, false otherwise.

4-6) !(lhs == rhs)