NAME

complex_operators:  operators for the C++ complex math library

SYNOPSIS

#include <complex.h>

 class complex {
  public:
friend complexoperator+(complex, complex);
friend complexoperator−(complex);
friend complexoperator−(complex, complex);
friend complexoperator∗(complex, complex);
friend complexoperator/(complex, complex);
 friend intoperator==(complex, complex);
friend intoperator!=(complex, complex);
 voidoperator+=(complex);
voidoperator−=(complex);
voidoperator∗=(complex);
voidoperator/=(complex);
 };

DESCRIPTION

The basic arithmetic operators, comparison operators, and assignment operators are overloaded for complex numbers.  The operators have their conventional precedences.  In the following descriptions for complex operators,
 — x, y, and z are of type complex. 

Arithmetic operators:

z = x + y Returns a complex which is the arithmetic sum of complex numbers x and y. 

z = −x Returns a complex which is the arithmetic negation of complex number x. 

z = x − y Returns a complex which is the arithmetic difference of complex numbers x and y. 

z = x ∗ y Returns a complex which is the arithmetic product of complex numbers x and y. 

z = x / y Returns a complex which is the arithmetic quotient of complex numbers x and y. 

Comparison operators:

x == y Returns non-zero if complex number x is equal to complex number y; returns 0 otherwise. 

x != y Returns non-zero if complex number x is not equal to complex number y; returns 0 otherwise. 

Assignment operators:

x += y Complex number x is assigned the value of the arithmetic sum of itself and complex number y. 

x −= y Complex number x is assigned the value of the arithmetic difference of itself and complex number y. 

x ∗= y Complex number x is assigned the value of the arithmetic product of itself and complex number y. 

x /= y Complex number x is assigned the value of the arithmetic quotient of itself and complex number y. 

WARNING

The assignment operators do not produce a value that can be used in an expression.  That is, the following construction is syntactically invalid,

complex    x, y, z;
x = ( y += z );

whereas,

x = ( y + z );
 
x = ( y == z );

are valid. 

SEE ALSO

CPLX.INTRO(3C++), cartpol(3C++), cplxerr(3C++), cplxexp(3C++), and cplxtrig(3C++). 

  —  C++ Complex Math Library