#[extern("vm")] fn vm_strlen(s: *i8) i32;
#[extern("vm")] fn vm_strcmp(a: *i8, b: *i8) i32;

const MAGIC := 42;

fn main() i32 {
    /* compile-time constant */
    if MAGIC != 42 { ret 1; }

    /* block scope */
    var outer := 1;
    {
        var inner := 2;
        if inner != 2 { ret 2; }
        outer = inner;
    }
    if outer != 2 { ret 3; }

    /* string literal — vm_strlen */
    var len := vm_strlen("hello");
    if len != 5 { ret 4; }

    /* vm_strcmp */
    var cmp := vm_strcmp("abc", "abc");
    if cmp != 0 { ret 5; }

    var cmp2 := vm_strcmp("abc", "def");
    if cmp2 == 0 { ret 6; }
    ret 0;
}