Руководство по стандартной библиотеке шаблонов STL

int result; result


#include <stl.h> #include <iostream.h> #include <string.h>

int vector1[5] = { 1, 2, 3, 4, 5 }; int vector2[5] = { 1, 2, 3, 4, 5 };

int main () { int result; result = inner_product (vector1, vector1 + 5, vector2, 0); cout << "Inner product = " << result << endl; return 0; }



#include <stl.h> #include <iostream.h> #include <string.h>

int main () { 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 ( sum of products) of:\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 (), 0); cout << "\nis: " << result << endl; return 0; }



#include <stl.h> #include <iostream.h> #include <string.h>

int add ( int a_, int b_) { return a_ + b_; }

int mult (int a_, int b_) { return a_ * b_; }

int main () { 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; }


Содержание раздела