-#![feature(core_intrinsics)]
+#![feature(core_intrinsics, generators, generator_trait, is_sorted)]
use std::arch::x86_64::*;
use std::io::Write;
-use std::intrinsics;
-
+use std::ops::Generator;
fn main() {
+ println!("{:?}", std::env::args().collect::<Vec<_>>());
+
let mutex = std::sync::Mutex::new(());
- mutex.lock().unwrap();
+ let _guard = mutex.lock().unwrap();
let _ = ::std::iter::repeat('a' as u8).take(10).collect::<Vec<_>>();
let stderr = ::std::io::stderr();
let mut stderr = stderr.lock();
+ std::thread::spawn(move || {
+ println!("Hello from another thread!");
+ });
+
writeln!(stderr, "some {} text", "<unknown>").unwrap();
let _ = std::process::Command::new("true").env("c", "d").spawn();
println!("cargo:rustc-link-lib=z");
- static ONCE: std::sync::Once = std::sync::ONCE_INIT;
+ static ONCE: std::sync::Once = std::sync::Once::new();
ONCE.call_once(|| {});
- LoopState::Continue(()) == LoopState::Break(());
+ let _eq = LoopState::Continue(()) == LoopState::Break(());
// Make sure ByValPair values with differently sized components are correctly passed
map(None::<(u8, Box<Instruction>)>);
println!("{}", 2.3f32.min(1.0));
println!("{}", 2.3f32.max(1.0));
println!("{}", 2.3f32.powi(2));
+ println!("{}", 2.3f32.log2());
+ assert_eq!(2.3f32.copysign(-1.0), -2.3f32);
+ println!("{}", 2.3f32.powf(2.0));
+
+ assert_eq!(-128i8, (-128i8).saturating_sub(1));
+ assert_eq!(127i8, 127i8.saturating_sub(-128));
+ assert_eq!(-128i8, (-128i8).saturating_add(-128));
+ assert_eq!(127i8, 127i8.saturating_add(1));
assert_eq!(0b0000000000000000000000000010000010000000000000000000000000000000_0000000000100000000000000000000000001000000000000100000000000000u128.leading_zeros(), 26);
assert_eq!(0b0000000000000000000000000010000000000000000000000000000000000000_0000000000000000000000000000000000001000000000000000000010000000u128.trailing_zeros(), 7);
- 0i128.checked_div(2i128);
- 0u128.checked_div(2u128);
+ let _d = 0i128.checked_div(2i128);
+ let _d = 0u128.checked_div(2u128);
assert_eq!(1u128 + 2, 3);
assert_eq!(0b100010000000000000000000000000000u128 >> 10, 0b10001000000000000000000u128);
assert_eq!(0xFEDCBA987654321123456789ABCDEFu128 >> 64, 0xFEDCBA98765432u128);
assert_eq!(0xFEDCBA987654321123456789ABCDEFu128 as i128 >> 64, 0xFEDCBA98765432i128);
- assert_eq!(353985398u128 * 932490u128, 330087843781020u128);
+
+ let tmp = 353985398u128;
+ assert_eq!(tmp * 932490u128, 330087843781020u128);
+
+ let tmp = -0x1234_5678_9ABC_DEF0i64;
+ assert_eq!(tmp as i128, -0x1234_5678_9ABC_DEF0i128);
+
+ // Check that all u/i128 <-> float casts work correctly.
+ let houndred_u128 = 100u128;
+ let houndred_i128 = 100i128;
+ let houndred_f32 = 100.0f32;
+ let houndred_f64 = 100.0f64;
+ assert_eq!(houndred_u128 as f32, 100.0);
+ assert_eq!(houndred_u128 as f64, 100.0);
+ assert_eq!(houndred_f32 as u128, 100);
+ assert_eq!(houndred_f64 as u128, 100);
+ assert_eq!(houndred_i128 as f32, 100.0);
+ assert_eq!(houndred_i128 as f64, 100.0);
+ assert_eq!(houndred_f32 as i128, 100);
+ assert_eq!(houndred_f64 as i128, 100);
+
+ // Test signed 128bit comparing
+ let max = usize::MAX as i128;
+ if 100i128 < 0i128 || 100i128 > max {
+ panic!();
+ }
+
+ test_checked_mul();
+
+ let _a = 1u32 << 2u8;
+
+ let empty: [i32; 0] = [];
+ assert!(empty.is_sorted());
+
+ println!("{:?}", std::intrinsics::caller_location());
unsafe {
test_simd();
}
+
+ Box::pin(move |mut _task_context| {
+ yield ();
+ }).as_mut().resume(0);
+
+ #[derive(Copy, Clone)]
+ enum Nums {
+ NegOne = -1,
+ }
+
+ let kind = Nums::NegOne;
+ assert_eq!(-1i128, kind as i128);
}
#[target_feature(enable = "sse2")]
test_mm_cvtepi8_epi16();
test_mm_cvtsi128_si64();
+ // FIXME(#666) implement `#[rustc_arg_required_const(..)]` support
+ //test_mm_extract_epi8();
+
let mask1 = _mm_movemask_epi8(dbg!(_mm_setr_epi8(255u8 as i8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)));
assert_eq!(mask1, 1);
}
fn assert_eq_m128i(x: std::arch::x86_64::__m128i, y: std::arch::x86_64::__m128i) {
unsafe {
- assert_eq!(std::mem::transmute::<_, [u8; 16]>(x), std::mem::transmute::<_, [u8; 16]>(x));
+ assert_eq!(std::mem::transmute::<_, [u8; 16]>(x), std::mem::transmute::<_, [u8; 16]>(y));
}
}
assert_eq_m128i(r, e);
}
+#[target_feature(enable = "sse4.1")]
+unsafe fn test_mm_extract_epi8() {
+ #[rustfmt::skip]
+ let a = _mm_setr_epi8(
+ -1, 1, 2, 3, 4, 5, 6, 7,
+ 8, 9, 10, 11, 12, 13, 14, 15
+ );
+ let r1 = _mm_extract_epi8(a, 0);
+ let r2 = _mm_extract_epi8(a, 19);
+ assert_eq!(r1, 0xFF);
+ assert_eq!(r2, 3);
+}
+
+fn test_checked_mul() {
+ let u: Option<u8> = u8::from_str_radix("1000", 10).ok();
+ assert_eq!(u, None);
+
+ assert_eq!(1u8.checked_mul(255u8), Some(255u8));
+ assert_eq!(255u8.checked_mul(255u8), None);
+ assert_eq!(1i8.checked_mul(127i8), Some(127i8));
+ assert_eq!(127i8.checked_mul(127i8), None);
+ assert_eq!((-1i8).checked_mul(-127i8), Some(127i8));
+ assert_eq!(1i8.checked_mul(-128i8), Some(-128i8));
+ assert_eq!((-128i8).checked_mul(-128i8), None);
+
+ assert_eq!(1u64.checked_mul(u64::max_value()), Some(u64::max_value()));
+ assert_eq!(u64::max_value().checked_mul(u64::max_value()), None);
+ assert_eq!(1i64.checked_mul(i64::max_value()), Some(i64::max_value()));
+ assert_eq!(i64::max_value().checked_mul(i64::max_value()), None);
+ assert_eq!((-1i64).checked_mul(i64::min_value() + 1), Some(i64::max_value()));
+ assert_eq!(1i64.checked_mul(i64::min_value()), Some(i64::min_value()));
+ assert_eq!(i64::min_value().checked_mul(i64::min_value()), None);
+}
+
#[derive(PartialEq)]
enum LoopState {
Continue(()),
projects / rust.git / blobdiff