Three dimensional arrays of integers in C++

Question

I would like to find out safe ways of implementing three dimensional arrays of integers in C++, using pointer arithmetic / dynamic memory allocation, or, alternatively using STL techniques such as vectors. Essentially I want my integer array dimensions to look like: [ x ][ y ][ z ] x and y are in the range 20-6000 z is known and equals 4. JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

Have a look at the Boost multi-dimensional array library. Here's an example (adapted from the Boost documentation): #include "boost/multi_array.hpp" int main() { // Create a 3D array that is 20 x 30 x 4 int x = 20; int y = 30; int z = 4; typedef boost::multi_array array_type; typedef array_type::index index; array_type my_array(boost::extents[x][y][z]); // Assign values to the elements int values = 0; for (index i = 0; i != x; ++i) { for (index j = 0; j != y; ++j) { for (index k = 0; k != z; ++k) { my_array[i][j][k] = values++; } } } }