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>

(1)

complex& operator+=(const T& other );

(until C++20)

constexpr complex& operator+=(const T& other );

(since C++20)

(2)

complex& operator-=(const T& other );

(until C++20)

constexpr complex& operator-=(const T& other );

(since C++20)

(3)

complex& operator*=(const T& other );

(until C++20)

constexpr complex& operator*=(const T& other );

(since C++20)

(4)

complex& operator/=(const T& other );

(until C++20)

constexpr complex& operator/=(const T& other );

(since C++20)

Specialization complex<float>

(1)

complex& operator+=(float other );

(until C++20)

constexpr complex& operator+=(float other );

(since C++20)

(2)

complex& operator-=(float other );

(until C++20)

constexpr complex& operator-=(float other );

(since C++20)

(3)

complex& operator*=(float other );

(until C++20)

constexpr complex& operator*=(float other );

(since C++20)

(4)

complex& operator/=(float other );

(until C++20)

constexpr complex& operator/=(float other );

(since C++20)

Specialization complex<double>

(1)

complex& operator+=(double other );

(until C++20)

constexpr complex& operator+=(double other );

(since C++20)

(2)

complex& operator-=(double other );

(until C++20)

constexpr complex& operator-=(double other );

(since C++20)

(3)

complex& operator*=(double other );

(until C++20)

constexpr complex& operator*=(double other );

(since C++20)

(4)

complex& operator/=(double other );

(until C++20)

constexpr complex& operator/=(double other );

(since C++20)

Specialization complex<long double>

(1)

complex& operator+=(longdouble other );

(until C++20)

constexpr complex& operator+=(longdouble other );

(since C++20)

(2)

complex& operator-=(longdouble other );

(until C++20)

constexpr complex& operator-=(longdouble other );

(since C++20)

(3)

complex& operator*=(longdouble other );

(until C++20)

constexpr complex& operator*=(longdouble other );

(since C++20)

(4)

complex& operator/=(longdouble other );

(until C++20)

constexpr complex& operator/=(longdouble other );

(since C++20)

All specializations

(5)

template<class X> complex& operator+=(conststd::complex<X>& other );

(until C++20)

template<class X> constexpr complex& operator+=(conststd::complex<X>& other );

(since C++20)

(6)

template<class X> complex& operator-=(conststd::complex<X>& other );

(until C++20)

template<class X> constexpr complex& operator-=(conststd::complex<X>& other );

(since C++20)

(7)

template<class X> complex& operator*=(conststd::complex<X>& other );

(until C++20)

template<class X> constexpr complex& operator*=(conststd::complex<X>& other );

(since C++20)

(8)

template<class X> complex& operator/=(conststd::complex<X>& other );

(until C++20)

template<class X> constexpr complex& operator/=(conststd::complex<X>& other );

(since C++20)

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, longdouble)

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)