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stl453fx
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regression
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inrprod2.cpp
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C/C++ Source or Header
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2002-04-29
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1KB
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50 lines
// STLport regression testsuite component.
// To compile as a separate example, please #define MAIN.
#include <vector>
#include <numeric>
#include <iostream>
#include <iterator>
#include <string>
#ifdef MAIN
#define inrprod2_test main
#endif
static int add(int a_, int b_)
{
return a_ + b_;
}
static int mult(int a_, int b_)
{
return a_ * b_;
}
#if !defined (STLPORT) || defined(__STL_USE_NAMESPACES)
using namespace std;
#endif
int inrprod2_test(int, char**)
{
cout<<"Results of inrprod2_test:"<<endl;
vector <int> v1(3);
vector <int> v2(v1.size());
for(int i = 0; i < v1.size(); i++)
{
v1[i] = i + 1;
v2[i] = v1.size() - i;
}
ostream_iterator<int> iter(cout, " ");
cout << "Inner product(product of sums):\n\t";
copy(v1.begin(), v1.end(), iter);
cout << "\n\t";
copy(v2.begin(), v2.end(), iter);
int result =
inner_product(v1.begin(), v1.end(),
v2.begin(),
1,
mult, add);
cout << "\nis: " << result << endl;
return 0;
}