diff options
Diffstat (limited to 'src/doc/guide-unsafe.md')
| -rw-r--r-- | src/doc/guide-unsafe.md | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/src/doc/guide-unsafe.md b/src/doc/guide-unsafe.md index c19977d0bab..96507939db0 100644 --- a/src/doc/guide-unsafe.md +++ b/src/doc/guide-unsafe.md @@ -424,14 +424,14 @@ Current valid options are: # Avoiding the standard library By default, `std` is linked to every Rust crate. In some contexts, -this is undesirable, and can be avoided with the `#[no_std];` +this is undesirable, and can be avoided with the `#![no_std]` attribute attached to the crate. ```ignore # // FIXME #12903: linking failures due to no_std // the minimal library -#[crate_type="lib"]; -#[no_std]; +#![crate_type="lib"] +#![no_std] # // fn main() {} tricked you, rustdoc! ``` @@ -446,7 +446,7 @@ in the same format as a C: ```ignore # // FIXME #12903: linking failures due to no_std -#[no_std]; +#![no_std] extern "rust-intrinsic" { fn abort() -> !; } #[no_mangle] pub extern fn rust_stack_exhausted() { @@ -462,14 +462,14 @@ fn start(_argc: int, _argv: **u8) -> int { ``` To override the compiler-inserted `main` shim, one has to disable it -with `#[no_main];` and then create the appropriate symbol with the +with `#![no_main]` and then create the appropriate symbol with the correct ABI and the correct name, which requires overriding the compiler's name mangling too: ```ignore # // FIXME #12903: linking failures due to no_std -#[no_std]; -#[no_main]; +#![no_std] +#![no_main] extern "rust-intrinsic" { fn abort() -> !; } #[no_mangle] pub extern fn rust_stack_exhausted() { @@ -543,7 +543,7 @@ sugar for dynamic allocations via `malloc` and `free`: ```ignore # // FIXME #12903: linking failures due to no_std -#[no_std]; +#![no_std] #[allow(ctypes)] // `uint` == `size_t` on Rust's platforms extern { |