16.03.2010, 20:26
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| easybudda Модератор Эксперт C++
Регистрация: 25.07.2009 Адрес: Московская область
Сообщений: 6,805 Репутация: 5686 (3293) |  Re: вывод в файл
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| #include <iostream>
#include <fstream>
template <typename T>
std::ostream& ShowMatrix(std::ostream& ost, T **matr, size_t rows, size_t cols){
for ( size_t i = 0; i < rows; i++ ){
for ( size_t j = 0; j < cols; ++j )
ost << matr[i][j] << " ";
ost << '\n';
}
return ost;
}
int main(){
const int rows = 5;
const int cols = 4;
int **matr = new int* [ rows ];
for ( int i = 0; i < rows; ++i )
matr[i] = new int [ cols ];
for ( int i = 0; i < rows; ++i )
for ( int j = 0; j < cols; ++j )
matr[i][j] = i + j;
ShowMatrix(std::cout, matr, rows, cols);
std::ofstream ofs("demo.txt");
if ( !ofs.is_open() )
return 1;
ShowMatrix(ofs, matr, rows, cols);
ofs.close();
for ( int i = 0; i < rows; ++i )
delete [] matr[i];
delete [] matr;
return 0;
}
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