how to find 2d array size in c++

Question

How do I find the size of a 2D array in C++? Is there any predefined function like sizeof to determine the size of the array?

Also, can anyone tell me h

Answer 1

Use an std::vector.

std::vector< std::vector > my_array; /* 2D Array */

my_array.size(); /* size of y */
my_array[0].size(); /* size of x */

Or, if you can only use a good ol' array, you can use sizeof.

sizeof( my_array ); /* y size */
sizeof( my_array[0] ); /* x size */