std::complex<T>::operator+=,-=,*=,/=

 

C++

Compiler support

Freestanding and hosted

Language

Standard library

Standard library headers

Named requirements

Feature test macros (C++20)

Language support library

Concepts library (C++20)

Diagnostics library

Memory management library

Metaprogramming library (C++11)

General utilities library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Strings library

Text processing library

Numerics library

Date and time library

Input/output library

Filesystem library (C++17)

Concurrency support library (C++11)

Execution control library (C++26)

Technical specifications

Symbols index

External libraries

 

Numerics library

Common mathematical functions
Mathematical special functions (C++17)
Mathematical constants (C++20)
Basic linear algebra algorithms (C++26)
Data-parallel types (SIMD) (C++26)
Floating-point environment (C++11)
Complex numbers
Numeric array (valarray)
Pseudo-random number generation
Bit manipulation (C++20)
Saturation arithmetic (C++26)
Factor operations
gcd (C++17)	lcm (C++17)
Interpolations
midpoint (C++20)	lerp (C++20)
Generic numeric operations
iota (C++11) ranges::iota (C++23) accumulate inner_product adjacent_difference      partial_sum	reduce (C++17) transform_reduce (C++17) inclusive_scan (C++17) exclusive_scan (C++17) transform_inclusive_scan (C++17) transform_exclusive_scan (C++17)
C-style checked integer arithmetic
ckd_add (C++26) ckd_sub (C++26)	ckd_mul (C++26)

 

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!= (until C++20)   operator<<operator>> get(std::complex) (C++26)	real imag abs arg norm conj proj (C++11) polar operator""ioperator""ifoperator""il (C++14)(C++14)(C++14)
Exponential functions
log   log10   exp
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)
Helper types
tuple_size<std::complex> (C++26)
tuple_element<std::complex> (C++26)

 

Primary template complex<T>
complex& operator+=( const T& other );	(1)	(until C++20)
constexpr complex& operator+=( const T& other );			(since C++20)
complex& operator-=( const T& other );	(2)	(until C++20)
constexpr complex& operator-=( const T& other );			(since C++20)
complex& operator*=( const T& other );	(3)	(until C++20)
constexpr complex& operator*=( const T& other );			(since C++20)
complex& operator/=( const T& other );	(4)	(until C++20)
constexpr complex& operator/=( const T& other );			(since C++20)
Specialization complex<float>
complex& operator+=( float other );	(1)	(until C++20)
constexpr complex& operator+=( float other );			(since C++20)
complex& operator-=( float other );	(2)	(until C++20)
constexpr complex& operator-=( float other );			(since C++20)
complex& operator*=( float other );	(3)	(until C++20)
constexpr complex& operator*=( float other );			(since C++20)
complex& operator/=( float other );	(4)	(until C++20)
constexpr complex& operator/=( float other );			(since C++20)
Specialization complex<double>
complex& operator+=( double other );	(1)	(until C++20)
constexpr complex& operator+=( double other );			(since C++20)
complex& operator-=( double other );	(2)	(until C++20)
constexpr complex& operator-=( double other );			(since C++20)
complex& operator*=( double other );	(3)	(until C++20)
constexpr complex& operator*=( double other );			(since C++20)
complex& operator/=( double other );	(4)	(until C++20)
constexpr complex& operator/=( double other );			(since C++20)
Specialization complex<long double>
complex& operator+=( long double other );	(1)	(until C++20)
constexpr complex& operator+=( long double other );			(since C++20)
complex& operator-=( long double other );	(2)	(until C++20)
constexpr complex& operator-=( long double other );			(since C++20)
complex& operator*=( long double other );	(3)	(until C++20)
constexpr complex& operator*=( long double other );			(since C++20)
complex& operator/=( long double other );	(4)	(until C++20)
constexpr complex& operator/=( long double other );			(since C++20)
All specializations
template<class X> complex& operator+=( const std::complex<X>& other );	(5)	(until C++20)
template<class X> constexpr complex& operator+=( const std::complex<X>& other );			(since C++20)
template<class X> complex& operator-=( const std::complex<X>& other );	(6)	(until C++20)
template<class X> constexpr complex& operator-=( const std::complex<X>& other );			(since C++20)
template<class X> complex& operator*=( const std::complex<X>& other );	(7)	(until C++20)
template<class X> constexpr complex& operator*=( const std::complex<X>& other );			(since C++20)
template<class X> complex& operator/=( const std::complex<X>& other );	(8)	(until C++20)
template<class X> constexpr complex& operator/=( const std::complex<X>& other );			(since C++20)

See More

Implements the compound assignment operators for complex arithmetic and for mixed complex/scalar arithmetic. Scalar arguments are treated as complex numbers with the real part equal to the argument and the imaginary part set to zero.

1,5) Adds other to *this.

2,6) Subtracts other from *this.

3,7) Multiplies *this by other.

4,8) Divides *this by other.

Parameters

other

-

a complex or scalar value of matching type (float, double, long double)

Return value

*this

See also

operator+operator-	applies unary operators to complex numbers (function template)
operator+operator-operator*operator/	performs complex number arithmetic on two complex values or a complex and a scalar (function template)