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Apache C++ Standard Library Reference Guide


Library:  General utilities

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A binary function object that returns the remainder obtained by dividing the first argument by the second argument


#include <functional>

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


modulus is a binary function object. Its operator() returns the remainder resulting from x divided by y. You can pass a modulus 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. modulus would be used in that algorithm in the following manner:

After this call to transform(), vecResult(n) contains the remainder of vec1(n) divided by vec2(n).


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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