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multiplies (3)
  • >> multiplies (3) ( Solaris man: Библиотечные вызовы )
  • 
                           Standard C++ Library
                 Copyright 1998, Rogue Wave Software, Inc.
    
    
    NAME
         multiplies
    
          - A binary function object that returns the result of  mul-
         tiplying its first and second arguments.
    
    
    
    SYNOPSIS
         #include<functional>
         template <class T>
         struct multiplies : binary_function<T, T, T> {
          T operator() (const T&, const T&) const;
         };
    
    
    
    DESCRIPTION
         multiplies is  a  binary  function  object.  Its  operator()
         returns  the  result  of multiplying x and y. You can pass a
         multiplies object to any algorithm that uses a binary  func-
         tion.  For example, the transform algorithm applies a binary
         operation to corresponding values  in  two  collections  and
         stores  the result.   multiplies would be used in that algo-
         rithm in the following manner:
    
    
         vector<int> vec1;
         vector<int> vec2;
         vector<int> vecResult;
         transform(vec1.begin(),                      vec1.end(),<br>
         vec2.begin(),   vec2.end(),<br>           vecResult.begin(),
         multiplies<int>());
    
         After this call to transform, vecResult(n) contains  vec1(n)
         times vec2(n).
    
    
    
    WARNINGS
         If your compiler does not support default  template  parame-
         ters,  then you always need to supply the Allocator template
         argument. For instance, you have to write:
    
         vector<int, allocator<int> >
         instead of:
    
         vector<int>
    
         If your compiler does not support namespaces,  then  you  do
         not need the using declaration for std.
    
    
    
    SEE ALSO
         binary_function, Function_Objects
    
    
    
    


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