| // Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| #![feature(intrinsics)] |
| |
| mod rusti { |
| extern "rust-intrinsic" { |
| pub fn ctpop8(x: u8) -> u8; |
| pub fn ctpop16(x: u16) -> u16; |
| pub fn ctpop32(x: u32) -> u32; |
| pub fn ctpop64(x: u64) -> u64; |
| |
| pub fn ctlz8(x: u8) -> u8; |
| pub fn ctlz16(x: u16) -> u16; |
| pub fn ctlz32(x: u32) -> u32; |
| pub fn ctlz64(x: u64) -> u64; |
| |
| pub fn cttz8(x: u8) -> u8; |
| pub fn cttz16(x: u16) -> u16; |
| pub fn cttz32(x: u32) -> u32; |
| pub fn cttz64(x: u64) -> u64; |
| |
| pub fn bswap16(x: u16) -> u16; |
| pub fn bswap32(x: u32) -> u32; |
| pub fn bswap64(x: u64) -> u64; |
| } |
| } |
| |
| pub fn main() { |
| unsafe { |
| use rusti::*; |
| |
| assert_eq!(ctpop8(0u8), 0u8); |
| assert_eq!(ctpop16(0u16), 0u16); |
| assert_eq!(ctpop32(0u32), 0u32); |
| assert_eq!(ctpop64(0u64), 0u64); |
| |
| assert_eq!(ctpop8(1u8), 1u8); |
| assert_eq!(ctpop16(1u16), 1u16); |
| assert_eq!(ctpop32(1u32), 1u32); |
| assert_eq!(ctpop64(1u64), 1u64); |
| |
| assert_eq!(ctpop8(10u8), 2u8); |
| assert_eq!(ctpop16(10u16), 2u16); |
| assert_eq!(ctpop32(10u32), 2u32); |
| assert_eq!(ctpop64(10u64), 2u64); |
| |
| assert_eq!(ctpop8(100u8), 3u8); |
| assert_eq!(ctpop16(100u16), 3u16); |
| assert_eq!(ctpop32(100u32), 3u32); |
| assert_eq!(ctpop64(100u64), 3u64); |
| |
| assert_eq!(ctpop8(-1u8), 8u8); |
| assert_eq!(ctpop16(-1u16), 16u16); |
| assert_eq!(ctpop32(-1u32), 32u32); |
| assert_eq!(ctpop64(-1u64), 64u64); |
| |
| assert_eq!(ctlz8(0u8), 8u8); |
| assert_eq!(ctlz16(0u16), 16u16); |
| assert_eq!(ctlz32(0u32), 32u32); |
| assert_eq!(ctlz64(0u64), 64u64); |
| |
| assert_eq!(ctlz8(1u8), 7u8); |
| assert_eq!(ctlz16(1u16), 15u16); |
| assert_eq!(ctlz32(1u32), 31u32); |
| assert_eq!(ctlz64(1u64), 63u64); |
| |
| assert_eq!(ctlz8(10u8), 4u8); |
| assert_eq!(ctlz16(10u16), 12u16); |
| assert_eq!(ctlz32(10u32), 28u32); |
| assert_eq!(ctlz64(10u64), 60u64); |
| |
| assert_eq!(ctlz8(100u8), 1u8); |
| assert_eq!(ctlz16(100u16), 9u16); |
| assert_eq!(ctlz32(100u32), 25u32); |
| assert_eq!(ctlz64(100u64), 57u64); |
| |
| assert_eq!(cttz8(-1u8), 0u8); |
| assert_eq!(cttz16(-1u16), 0u16); |
| assert_eq!(cttz32(-1u32), 0u32); |
| assert_eq!(cttz64(-1u64), 0u64); |
| |
| assert_eq!(cttz8(0u8), 8u8); |
| assert_eq!(cttz16(0u16), 16u16); |
| assert_eq!(cttz32(0u32), 32u32); |
| assert_eq!(cttz64(0u64), 64u64); |
| |
| assert_eq!(cttz8(1u8), 0u8); |
| assert_eq!(cttz16(1u16), 0u16); |
| assert_eq!(cttz32(1u32), 0u32); |
| assert_eq!(cttz64(1u64), 0u64); |
| |
| assert_eq!(cttz8(10u8), 1u8); |
| assert_eq!(cttz16(10u16), 1u16); |
| assert_eq!(cttz32(10u32), 1u32); |
| assert_eq!(cttz64(10u64), 1u64); |
| |
| assert_eq!(cttz8(100u8), 2u8); |
| assert_eq!(cttz16(100u16), 2u16); |
| assert_eq!(cttz32(100u32), 2u32); |
| assert_eq!(cttz64(100u64), 2u64); |
| |
| assert_eq!(cttz8(-1u8), 0u8); |
| assert_eq!(cttz16(-1u16), 0u16); |
| assert_eq!(cttz32(-1u32), 0u32); |
| assert_eq!(cttz64(-1u64), 0u64); |
| |
| assert_eq!(bswap16(0x0A0Bu16), 0x0B0Au16); |
| assert_eq!(bswap32(0x0ABBCC0Du32), 0x0DCCBB0Au32); |
| assert_eq!(bswap64(0x0122334455667708u64), 0x0877665544332201u64); |
| } |
| } |
