Node:Arithmetic operations, Next:Comparisons, Previous:Base, Up:Function objects

Arithmetic operations

plus	Function Object
minus	Function Object
times	Function Object
divides	Function Object
modulus	Function Object
negate	Function Object

The library provides basic function object classes for all of the arithmetic operators in the language.

template 
struct plus : binary_function {
    T operator()(const T& x, const T& y) const { return x + y; }
};

template 
struct minus : binary_function {
    T operator()(const T& x, const T& y) const { return x - y; }
};

template 
struct times : binary_function {
    T operator()(const T& x, const T& y) const { return x * y; }
};

template 
struct divides : binary_function {
    T operator()(const T& x, const T& y) const { return x / y; }
};

template 
struct modulus : binary_function {
    T operator()(const T& x, const T& y) const { return x % y; }
};

template 
struct negate : unary_function {
    T operator()(const T& x) const { return -x; }
};