Programming Questions

Find size of matrix in C++

Hey, does someone know a easy to use library for C++ including a feature to find the size of matrixes easily. Thanks!

TheErebos01
posted this question on 12/12/18 **|**

0

#include <iostream> using namespace std; int main() { int matrix [3][2]; int rows=sizeof( matrix )/sizeof( matrix[0] );/* the first part is to count how many bytes should occupy in this (2D array) , and the second is just how many bytes in the first row , if you divided them you'll get the number of rows of course */ int columns =sizeof( matrix[0] )/sizeof( matrix[0][0] );/* the first part is just the same as before but you should divided it by the number of the bytes of each location "ex: the first location" , to get the number of columns in the matrix */ // there is many ways you can express the same idea , good luck . return 0; }

omerhussein

answered on 03/12/19

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