Note that this only works in C , because T[] and T[N] are compatible types. C++ does not have a concept of compatible types, and so it will reject that code, ... ... <看更多>

*(c+i) = (int*) malloc(sizeof(int) * col);. for (i = 0; i < row; i++). for (j = 0; j < col; j++). c[i][j] = i * j;. doit(c, row, col);. } ... ... <看更多>

As Aron notes in his comment, rarely are matrices stored in nested pointer data structures in practice. Multiple levels of indirection (I'm told) cause ... ... <看更多>