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Apache C++ Standard Library Reference Guide

minus

Library:  General utilities


binary_function minus

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Summary

Function object that returns the result of subtracting its second argument from its first argument

Synopsis

#include <functional>

namespace std {
  template <class T>
  struct minus : public binary_function<T, T, T>;
}

Description

minus is a binary function object. Its operator() returns the result of x minus y. You can pass a minus object to any algorithm that requires a binary function. For example, the transform() algorithm applies a binary operation to corresponding values in two collections and stores the result. minus would be used in that algorithm in the following manner:

After this call to transform(), vecResult(n) contains vec1(n) minus vec2(n).

Interface

See Also

binary_function, Function Objects

Standards Conformance

ISO/IEC 14882:1998 -- International Standard for Information Systems -- Programming Language C++, Section 20.3.2



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