test2.c


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typedef struct v2d { double x,y; } v2d;


void addp(v2d *a, const v2d *b)
{
    a->x += b->x;
    a->y += b->y;
}

v2d add(v2d a, v2d b)
{
    addp(&a, &b);
    return a;
}

short s(int a, int b) {
    return a + b;
}

int i() {
    return s(1,2);
}