Remove some unnecessary changes

1 files changed, 59 insertions, 17 deletions

diff --git a/example/std_example.rs b/example/std_example.rs
index 465b6143525..bd51a37f29f 100644
--- a/example/std_example.rs
+++ b/example/std_example.rs
@@ -3,6 +3,65 @@
 use std::io::Write;
 use std::intrinsics;
 
+fn main() {
+    let _ = ::std::iter::repeat('a' as u8).take(10).collect::<Vec<_>>();
+    let stderr = ::std::io::stderr();
+    let mut stderr = stderr.lock();
+
+    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;
+    ONCE.call_once(|| {});
+
+    LoopState::Continue(()) == LoopState::Break(());
+
+    // Make sure ByValPair values with differently sized components are correctly passed
+    map(None::<(u8, Box<Instruction>)>);
+
+    println!("{}", 2.3f32.exp());
+    println!("{}", 2.3f32.exp2());
+    println!("{}", 2.3f32.abs());
+    println!("{}", 2.3f32.sqrt());
+    println!("{}", 2.3f32.floor());
+    println!("{}", 2.3f32.ceil());
+    println!("{}", 2.3f32.min(1.0));
+    println!("{}", 2.3f32.max(1.0));
+
+    assert_eq!(0b0000000000000000000000000010000010000000000000000000000000000000_0000000000100000000000000000000000001000000000000100000000000000u128.leading_zeros(), 26);
+    assert_eq!(0b0000000000000000000000000010000000000000000000000000000000000000_0000000000000000000000000000000000001000000000000000000010000000u128.trailing_zeros(), 7);
+
+    checked_div_i128(0i128, 2i128);
+    checked_div_u128(0u128, 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);
+}
+
+#[derive(PartialEq)]
+enum LoopState {
+    Continue(()),
+    Break(())
+}
+
+pub enum Instruction {
+    Increment,
+    Loop,
+}
+
+fn map(a: Option<(u8, Box<Instruction>)>) -> Option<Box<Instruction>> {
+    match a {
+        None => None,
+        Some((_, instr)) => Some(instr),
+    }
+}
+
 fn checked_div_i128(lhs: i128, rhs: i128) -> Option<i128> {
     if rhs == 0 || (lhs == -170141183460469231731687303715884105728 && rhs == -1) {
         None
@@ -17,20 +76,3 @@ fn checked_div_u128(lhs: u128, rhs: u128) -> Option<u128> {
         rhs => Some(unsafe { intrinsics::unchecked_div(lhs, rhs) })
     }
 }
-
-fn main() {
-    assert_eq!(0b0000000000000000000000000010000010000000000000000000000000000000_0000000000100000000000000000000000001000000000000100000000000000u128.leading_zeros(), 26);
-    assert_eq!(0b0000000000000000000000000010000000000000000000000000000000000000_0000000000000000000000000000000000001000000000000000000010000000u128.trailing_zeros(), 7);
-
-    checked_div_i128(0i128, 2i128);
-    checked_div_u128(0u128, 2u128);
-    assert_eq!(1u128 + 2, 3);
-
-    // overflow panic
-    // 0xFEDCBA987654321123456789ABCDEFu128 + 0xFEDCBA987654321123456789ABCDEFu128;
-
-    println!("{}", 0b100010000000000000000000000000000u128 >> 10);
-    println!("{}", 0xFEDCBA987654321123456789ABCDEFu128 >> 64);
-    println!("{} >> 64 == {}", 0xFEDCBA987654321123456789ABCDEFu128 as i128, 0xFEDCBA987654321123456789ABCDEFu128 as i128 >> 64);
-    println!("{}", 353985398u128 * 932490u128);
-}