@{
    nTimes     = `constant  10;
    forLoop    = `statement for (int i = 0;  i < 10;  ++i) printf("%d\n", i); ;
    whileLoop  = `statement while (i < 10) { printf("%d\n", i);  ++il; };
    useForLoop = 1;
    x = null;
}


@{forLoop    = `statement for (int i = 0;  i < 10;  ++i) printf("%d\n", i);;}


@{if (useForLoop) { x = forLoop;} else { x = whileLoop; } }


int main()
{ 
    @(x);

    @(`statement for (int i = 0;  i < @(nTimes);  ++i) printf("%d\n", i););

    @{if (useForLoop) {forLoop;} else {whileLoop;}}; // Impossible to modify useForLoop in a function

    return 0;
}