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rust source #1
Output
Compile to binary object
Link to binary
Execute the code
Intel asm syntax
Demangle identifiers
Verbose demangling
Filters
Unused labels
Library functions
Directives
Comments
Horizontal whitespace
Debug intrinsics
Compiler
mrustc (master)
rustc 1.0.0
rustc 1.1.0
rustc 1.10.0
rustc 1.11.0
rustc 1.12.0
rustc 1.13.0
rustc 1.14.0
rustc 1.15.1
rustc 1.16.0
rustc 1.17.0
rustc 1.18.0
rustc 1.19.0
rustc 1.2.0
rustc 1.20.0
rustc 1.21.0
rustc 1.22.0
rustc 1.23.0
rustc 1.24.0
rustc 1.25.0
rustc 1.26.0
rustc 1.27.0
rustc 1.27.1
rustc 1.28.0
rustc 1.29.0
rustc 1.3.0
rustc 1.30.0
rustc 1.31.0
rustc 1.32.0
rustc 1.33.0
rustc 1.34.0
rustc 1.35.0
rustc 1.36.0
rustc 1.37.0
rustc 1.38.0
rustc 1.39.0
rustc 1.4.0
rustc 1.40.0
rustc 1.41.0
rustc 1.42.0
rustc 1.43.0
rustc 1.44.0
rustc 1.45.0
rustc 1.45.2
rustc 1.46.0
rustc 1.47.0
rustc 1.48.0
rustc 1.49.0
rustc 1.5.0
rustc 1.50.0
rustc 1.51.0
rustc 1.52.0
rustc 1.53.0
rustc 1.54.0
rustc 1.55.0
rustc 1.56.0
rustc 1.57.0
rustc 1.58.0
rustc 1.59.0
rustc 1.6.0
rustc 1.60.0
rustc 1.61.0
rustc 1.62.0
rustc 1.63.0
rustc 1.64.0
rustc 1.65.0
rustc 1.66.0
rustc 1.67.0
rustc 1.68.0
rustc 1.69.0
rustc 1.7.0
rustc 1.70.0
rustc 1.71.0
rustc 1.72.0
rustc 1.73.0
rustc 1.74.0
rustc 1.75.0
rustc 1.76.0
rustc 1.77.0
rustc 1.78.0
rustc 1.79.0
rustc 1.8.0
rustc 1.80.0
rustc 1.81.0
rustc 1.9.0
rustc beta
rustc nightly
rustc-cg-gcc (master)
x86-64 GCCRS (GCC master)
x86-64 GCCRS (GCCRS master)
x86-64 GCCRS 14.1 (GCC)
x86-64 GCCRS 14.2 (GCC)
Options
Source code
use std::{ops, ptr, str}; pub struct String { vec: Vec<u8> } impl ops::Deref for String { type Target = str; fn deref(&self) -> &Self::Target { unsafe { str::from_utf8_unchecked(&self.vec) } } } impl String { #[inline] pub fn retain<F>(&mut self, mut f: F) where F: FnMut(char) -> bool, { struct SetLenOnDrop<'a> { s: &'a mut String, idx: usize, del_bytes: usize, } impl<'a> Drop for SetLenOnDrop<'a> { fn drop(&mut self) { let new_len = self.idx - self.del_bytes; debug_assert!(new_len <= self.s.len()); unsafe { self.s.vec.set_len(new_len) }; } } let len = self.len(); let mut guard = SetLenOnDrop { s: self, idx: 0, del_bytes: 0 }; while guard.idx < len { let ch = unsafe { guard.s.get_unchecked(guard.idx..len).chars().next().unwrap() }; let ch_len = ch.len_utf8(); if !f(ch) { guard.del_bytes += ch_len; } else if guard.del_bytes > 0 { unsafe { ptr::copy( guard.s.vec.as_ptr().add(guard.idx), guard.s.vec.as_mut_ptr().add(guard.idx - guard.del_bytes), ch_len, ); } } // Point idx to the next char guard.idx += ch_len; } drop(guard); } } pub fn test(s: &mut String) { s.retain(|c| !c.is_ascii()) }
rust source #2
Output
Compile to binary object
Link to binary
Execute the code
Intel asm syntax
Demangle identifiers
Verbose demangling
Filters
Unused labels
Library functions
Directives
Comments
Horizontal whitespace
Debug intrinsics
Compiler
mrustc (master)
rustc 1.0.0
rustc 1.1.0
rustc 1.10.0
rustc 1.11.0
rustc 1.12.0
rustc 1.13.0
rustc 1.14.0
rustc 1.15.1
rustc 1.16.0
rustc 1.17.0
rustc 1.18.0
rustc 1.19.0
rustc 1.2.0
rustc 1.20.0
rustc 1.21.0
rustc 1.22.0
rustc 1.23.0
rustc 1.24.0
rustc 1.25.0
rustc 1.26.0
rustc 1.27.0
rustc 1.27.1
rustc 1.28.0
rustc 1.29.0
rustc 1.3.0
rustc 1.30.0
rustc 1.31.0
rustc 1.32.0
rustc 1.33.0
rustc 1.34.0
rustc 1.35.0
rustc 1.36.0
rustc 1.37.0
rustc 1.38.0
rustc 1.39.0
rustc 1.4.0
rustc 1.40.0
rustc 1.41.0
rustc 1.42.0
rustc 1.43.0
rustc 1.44.0
rustc 1.45.0
rustc 1.45.2
rustc 1.46.0
rustc 1.47.0
rustc 1.48.0
rustc 1.49.0
rustc 1.5.0
rustc 1.50.0
rustc 1.51.0
rustc 1.52.0
rustc 1.53.0
rustc 1.54.0
rustc 1.55.0
rustc 1.56.0
rustc 1.57.0
rustc 1.58.0
rustc 1.59.0
rustc 1.6.0
rustc 1.60.0
rustc 1.61.0
rustc 1.62.0
rustc 1.63.0
rustc 1.64.0
rustc 1.65.0
rustc 1.66.0
rustc 1.67.0
rustc 1.68.0
rustc 1.69.0
rustc 1.7.0
rustc 1.70.0
rustc 1.71.0
rustc 1.72.0
rustc 1.73.0
rustc 1.74.0
rustc 1.75.0
rustc 1.76.0
rustc 1.77.0
rustc 1.78.0
rustc 1.79.0
rustc 1.8.0
rustc 1.80.0
rustc 1.81.0
rustc 1.9.0
rustc beta
rustc nightly
rustc-cg-gcc (master)
x86-64 GCCRS (GCC master)
x86-64 GCCRS (GCCRS master)
x86-64 GCCRS 14.1 (GCC)
x86-64 GCCRS 14.2 (GCC)
Options
Source code
use std::{ops, ptr, slice, str}; pub struct String { vec: Vec<u8> } impl ops::Deref for String { type Target = str; fn deref(&self) -> &Self::Target { unsafe { str::from_utf8_unchecked(&self.vec) } } } impl String { #[inline] pub fn retain<F>(&mut self, mut f: F) where F: FnMut(char) -> bool, { let len = self.len(); unsafe { self.vec.set_len(0) }; let mut del_bytes = 0; let mut idx = 0; while idx < len { let ptr = self.vec.as_mut_ptr(); let ch = unsafe { let start = ptr.add(idx); let region = slice::from_raw_parts(start, len - idx); let ch = str::from_utf8_unchecked(region).chars().next().unwrap(); ch }; let ch_len = ch.len_utf8(); if !f(ch) { del_bytes += ch_len; } else if del_bytes > 0 { unsafe { ptr::copy( ptr.add(idx), ptr.add(idx - del_bytes), ch_len, ); } } // Point idx to the next char idx += ch_len; } unsafe { self.vec.set_len(len - del_bytes); } } } pub fn test(s: &mut String) { s.retain(|c| !c.is_ascii()) }
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