Arrays / A fixed size raw array matrix that is a 2D raw array / Essential C++
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// A fixed size raw array matrix (that is, a 2D raw array).
#include <iostream>
#include <iomanip>
using namespace std;
auto main() -> int
{
int const n_rows = 3;
int const n_cols = 7;
int const m[n_rows][n_cols] = // A raw array matrix.
{
{ 1, 2, 3, 4, 5, 6, 7 },
{ 8, 9, 10, 11, 12, 13, 14 },
{ 15, 16, 17, 18, 19, 20, 21 }
};
for( int y = 0; y < n_rows; ++y )
{
for( int x = 0; x < n_cols; ++x )
{
cout << setw( 4 ) << m[y][x]; // Note: do NOT use m[y,x]!
}
cout << '\n';
}
}
Cpp
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