1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
36 let mut it = vec![137].into_iter();
37 let itr: &mut vec::IntoIter<u32> = &mut it;
38 assert_eq!((itr as &mut Iterator<Item=u32>).next(), Some(137));
39 assert_eq!((itr as &mut Iterator<Item=u32>).next(), None);
41 assert_eq!(Some(4u32) as Option<u32>, Some(4u32));
42 assert_eq!((1u32,2u32) as (u32,u32), (1,2));
44 // this isn't prim-int-cast. Check that it works.
45 assert_eq!(false as bool, false);
46 assert_eq!(true as bool, true);
49 let l: u64 = 0x8090a0b0c0d0e0f0;
50 let lsz: usize = l as usize;
51 assert_eq!(l as u32, 0xc0d0e0f0);
54 assert_eq!(l as u8, 0xf0);
55 assert_eq!(l as i8,-0x10);
56 assert_eq!(l as u32, 0xc0d0e0f0);
57 assert_eq!(l as u32 as usize as u32, l as u32);
58 assert_eq!(l as i32,-0x3f2f1f10);
59 assert_eq!(l as i32 as isize as i32, l as i32);
60 assert_eq!(l as i64,-0x7f6f5f4f3f2f1f10);
62 assert_eq!(0 as f64, 0f64);
63 assert_eq!(1 as f64, 1f64);
65 assert_eq!(l as f64, 9264081114510712022f64);
67 assert_eq!(l as i64 as f64, -9182662959198838444f64);
68 // float overflow : needs fixing
69 // assert_eq!(l as f32 as i64 as u64, 9264082620822882088u64);
70 // assert_eq!(l as i64 as f32 as i64, 9182664080220408446i64);
72 assert_eq!(4294967040f32 as u32, 0xffffff00u32);
73 assert_eq!(1.844674407370955e19f64 as u64, 0xfffffffffffff800u64);
75 assert_eq!(9.223372036854775e18f64 as i64, 0x7ffffffffffffc00i64);
76 assert_eq!(-9.223372036854776e18f64 as i64, 0x8000000000000000u64 as i64);
79 // addr-ptr-cast/ptr-addr-cast (thin ptr)
80 let p: *const [u8; 1] = lsz as *const [u8; 1];
81 assert_eq!(p as usize, lsz);
83 // ptr-ptr-cast (thin ptr)
84 let w: *const () = p as *const ();
85 assert_eq!(w as usize, lsz);
87 // ptr-ptr-cast (fat->thin)
88 let u: *const [u8] = unsafe{&*p};
89 assert_eq!(u as *const u8, p as *const u8);
90 assert_eq!(u as *const u16, p as *const u16);
92 // ptr-ptr-cast (both vk=Length)
93 let mut l : [u8; 2] = [0,1];
94 let w: *mut [u16; 2] = &mut l as *mut [u8; 2] as *mut _;
95 let w: *mut [u16] = unsafe {&mut *w};
96 let w_u8 : *const [u8] = w as *const [u8];
97 assert_eq!(unsafe{&*w_u8}, &l);
99 let s: *mut str = w as *mut str;
100 let l_via_str = unsafe{&*(s as *const [u8])};
101 assert_eq!(&l, l_via_str);
104 assert_eq!(Simple::A as u8, 0);
105 assert_eq!(Simple::B as u8, 1);
107 assert_eq!(Valued::H8 as i8, -93);
108 assert_eq!(Valued::H7 as i8, 67);
109 assert_eq!(Valued::Z as i8, 0);
111 assert_eq!(Valued::H8 as u8, 163);
112 assert_eq!(Valued::H7 as u8, 67);
113 assert_eq!(Valued::Z as u8, 0);
115 assert_eq!(Valued::H8 as u16, 163);
116 assert_eq!(Valued::Z as u16, 0);
117 assert_eq!(Valued::H8 as u16, 163);
118 assert_eq!(Valued::Z as u16, 0);
120 assert_eq!(ValuedSigned::M1 as u16, 65535);
121 assert_eq!(ValuedSigned::M1 as i16, -1);
122 assert_eq!(ValuedSigned::P1 as u16, 1);
123 assert_eq!(ValuedSigned::P1 as i16, 1);
126 assert_eq!(false as u16, 0);
127 assert_eq!(true as u16, 1);
128 assert_eq!(false as i64, 0);
129 assert_eq!(true as i64, 1);
130 assert_eq!('a' as u32, 0x61);
131 assert_eq!('a' as u16, 0x61);
132 assert_eq!('a' as u8, 0x61);
133 assert_eq!('א' as u8, 0xd0);
134 assert_eq!('א' as u16, 0x5d0);
135 assert_eq!('א' as u32, 0x5d0);
136 assert_eq!('🐵' as u8, 0x35);
137 assert_eq!('🐵' as u16, 0xf435);
138 assert_eq!('🐵' as u32, 0x1f435);
139 assert_eq!('英' as i16, -0x7d0f);
140 assert_eq!('英' as u16, 0x82f1);
143 assert_eq!(0x61 as char, 'a');
144 assert_eq!(0u8 as char, '\0');
145 assert_eq!(0xd7 as char, '×');
149 let first : *const u32 = &x[0];
151 assert_eq!(first, &x as *const _);
152 assert_eq!(first, &x as *const u32);
162 assert!(foo as usize != bar as usize);
164 assert_eq!(foo as i16, foo as usize as i16);
168 assert_eq!(foo as *const u8 as usize, foo as usize);
169 assert!(foo as *const u32 != first);