| // run-pass |
| #![allow(improper_ctypes)] |
| |
| // MSVC doesn't support 128 bit integers, and other Windows |
| // C compilers have very inconsistent views on how the ABI |
| // should look like. |
| |
| // ignore-windows |
| // ignore-32bit |
| |
| #[link(name = "rust_test_helpers", kind = "static")] |
| extern "C" { |
| fn identity(f: u128) -> u128; |
| fn square(f: i128) -> i128; |
| fn sub(f: i128, f: i128) -> i128; |
| } |
| |
| fn main() { |
| unsafe { |
| let a = 0x734C_C2F2_A521; |
| let b = 0x33EE_0E2A_54E2_59DA_A0E7_8E41; |
| let b_out = identity(b); |
| assert_eq!(b, b_out); |
| let a_square = square(a); |
| assert_eq!(b, a_square as u128); |
| let k = 0x1234_5678_9ABC_DEFF_EDCB_A987_6543_210; |
| let k_d = 0x2468_ACF1_3579_BDFF_DB97_530E_CA86_420; |
| let k_out = sub(k_d, k); |
| assert_eq!(k, k_out); |
| } |
| } |
