initialize char matrix

[deepinside]

Hello to everybody!
I have a global variable initialized like that:
char matrix[][3] = {{'1', '2', '3'}, {'4', '5', '6'}, {'7', '8', '9'}};

The matrix is modified during the program and I would to write a function that redo the initialization up.
If I write simply matrix = {{'1', '2', '3'}, {'4', '5', '6'}, {'7', '8', '9'}}; returns the error "assigning to an array from an initializer list"

Where's the problem?

thanks to everybody

[helios]

The problem is that initializer lists are only valid in initialization statements.
You could simply do

for (int i = 0; i < 9; i++){
    //Watch out! You might need to flip around the indices.
    //I can never remember which is which.
    matrix[i / 3][i % 3] = '0' + i;
}

[JLBorges]

Using std::array<> to wrap the c-style array:

#include <iostream>
#include <array>

template < typename MATRIX > void print( const MATRIX& matrix )
{
    for( const auto& row : matrix )
    {
        for( const auto& v : row ) std::cout << v << ' ' ;
        std::cout << '\n' ;
    }
    std::cout << "-------\n" ;
}

int main()
{
    std::array< std::array< char, 3 >, 3 > matrix = { { {'1', '2', '3'}, {'4', '5', '6'}, {'7', '8', '9'} } };
    print(matrix) ;

    matrix = { { {'A', 'B', 'C'}, {'D', 'E', 'F'}, {'G', 'H', 'I'} } } ;
    print(matrix) ;

    matrix = { { {'1', '2', '3'}, {'4', '5', '6'}, {'7', '8', '9'} } } ;
    print(matrix) ;
}

http://coliru.stacked-crooked.com/a/f49ef6047af22749