Invalid Array Assignment

Question

i don't know where is the problem i'm assigning the address to other 2 dimensional array. Please help me to fix this problem

int main()
{
    int a[3][2];
    int b[2]={0,1};
    a[2]=b;
    return 0;
}

prog.cpp:8:9: error: invalid array assignment

Answer 1

You can't copy an array using =. Neither can you assign an array's address; x = y; doesn't work either when x and y have types char[1] for example. To copy the contents of b to a[2], use memcpy:

memcpy(a[2], b, sizeof(a[2]));

Answer 2

you should iterate each element of b[2] one by one and store into it a[2] try this:

int main()
{
    int a[3][2];
    int b[2]={0,1};
    for(int i=0;i<2;i++){
     b[i]=a[2];
    return 0;
}

Answer 3

Because the standard says so. Arrays cannot be assigned, only initialized. so C:

int i;
for(i = 0; i < 2; i++)
{
  a[2][i] = b[i];
}
...

C++: you can use strcpy!

Answer 4

This assignment is not possible.Array allow specific location assignment. you can try like this:

int main()
{
    int a[3][2];
    int b[2]={0,1};
    a[0][0]=b[0];
    a[0][1]=b[1];
    return 0;
}