#include #include #include $scope root = $here; int main(){ ptrdiff_t diff; double ** x; x = (double **)$malloc(root, sizeof(double *) * 3); for(int i=0; i<3; i++) x[i] = (double *)$malloc(root, sizeof(double) * 2); diff = x[1] - x[0]; for(int i=0; i<3; i++) $free(x[i]); $free(x); return 0; }