1const std = @import("std");
 2const builtin = @import("builtin");
 3const expect = std.testing.expect;
 4const mem = std.mem;
 5
 6test "integer widening" {
 7    const a: u8 = 250;
 8    const b: u16 = a;
 9    const c: u32 = b;
10    const d: u64 = c;
11    const e: u64 = d;
12    const f: u128 = e;
13    try expect(f == a);
14}
15
16test "implicit unsigned integer to signed integer" {
17    const a: u8 = 250;
18    const b: i16 = a;
19    try expect(b == 250);
20}
21
22test "float widening" {
23    const a: f16 = 12.34;
24    const b: f32 = a;
25    const c: f64 = b;
26    const d: f128 = c;
27    try expect(d == a);
28}
29
30// test