zig/test/cases/cast.zig

const assert = @import("std").debug.assert;

fn intToPtrCast() {
    @setFnTest(this);

    const x = isize(13);
    const y = (&u8)(x);
    const z = usize(y);
    assert(z == 13);
}

fn numLitIntToPtrCast() {
    @setFnTest(this);

    const vga_mem = (&u16)(0xB8000);
    assert(usize(vga_mem) == 0xB8000);
}

fn pointerReinterpretConstFloatToInt() {
    @setFnTest(this);

    const float: f64 = 5.99999999999994648725e-01;
    const float_ptr = &float;
    const int_ptr = (&i32)(float_ptr);
    const int_val = *int_ptr;
    assert(int_val == 858993411);
}