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Challenges Bytes to Segfault

Rust 1.0.0, 58 53 52 37 bytes fn a(){#[no_mangle]static mmap:u8=0;}

posted 4y ago by moony‭  ·  edited 4y ago by moony‭

Answer
#4: Post edited by user avatar moony‭ · 2020-11-21T00:59:21Z (about 4 years ago)
-15 bytes
  • # Rust 1.0.0, <del>58</del> <del>53</del> 52 bytes
  • ```rust
  • #[no_mangle]pub extern fn mmap()->u8{9}
  • fn main(){}
  • ```
  • # Rust 1.0.0, <del>58</del> <del>53</del> <del>52</del> 37 bytes
  • ```rust
  • fn a(){#[no_mangle]static mmap:u8=0;}
  • ```
#3: Post edited by user avatar moony‭ · 2020-11-20T23:24:52Z (about 4 years ago)
there was a space... also doesn't work on TIO, only with rustc 1.0.0 sooo
  • # Rust, <del>58</del> 53 bytes
  • ```rust
  • #[no_mangle]pub extern fn mmap()->u8{9}
  • fn main() {}
  • ```
  • [Try it Online!](https://tio.run/##KyotLvn/Xzk6Lz8@NzEvPSc1tqA0SSG1oiS1KE8hLU8hNzexQENT167UotqylgskkJiZp6GpUF37//9/AA)
  • # Rust 1.0.0, <del>58</del> <del>53</del> 52 bytes
  • ```rust
  • #[no_mangle]pub extern fn mmap()->u8{9}
  • fn main(){}
  • ```
#2: Post edited by user avatar moony‭ · 2020-11-20T23:20:33Z (about 4 years ago)
-5 bytes
  • # Rust, 58 bytes
  • ```rust
  • #[no_mangle]pub extern fn malloc()->usize{1}
  • fn main() {}
  • ```
  • [Try it Online!](https://tio.run/##KyotLvn/Xzk6Lz8@NzEvPSc1tqA0SSG1oiS1KE8hLU8hNzEnJz9ZQ1PXrrQ4syq12rCWCyyamaehqVBd@///fwA)
  • # Rust, <del>58</del> 53 bytes
  • ```rust
  • #[no_mangle]pub extern fn mmap()->u8{9}
  • fn main() {}
  • ```
  • [Try it Online!](https://tio.run/##KyotLvn/Xzk6Lz8@NzEvPSc1tqA0SSG1oiS1KE8hLU8hNzexQENT167UotqylgskkJiZp6GpUF37//9/AA)
#1: Initial revision by user avatar moony‭ · 2020-11-20T23:15:21Z (about 4 years ago)
# Rust, 58 bytes
```rust
#[no_mangle]pub extern fn malloc()->usize{1}
fn main() {}
```
[Try it Online!](https://tio.run/##KyotLvn/Xzk6Lz8@NzEvPSc1tqA0SSG1oiS1KE8hLU8hNzEnJz9ZQ1PXrrQ4syq12rCWCyyamaehqVBd@///fwA)