output.txt

~/Projects/rust_stuff$ rustdoc snappy.rs --test

running 1 test
test max_compressed_length_0 ... FAILED

failures:

---- max_compressed_length_0 stdout ----
	<anon>:2:1: 2:19 warning: this inner attribute syntax is deprecated. The new syntax is `#![foo]`, with a bang and no semicolon.
	<anon>:2 #[deny(warnings)];
	         ^~~~~~~~~~~~~~~~~~
	<anon>:3:1: 3:84 warning: this inner attribute syntax is deprecated. The new syntax is `#![foo]`, with a bang and no semicolon.
	<anon>:3 #[allow(unused_variable, dead_assignment, unused_mut, attribute_usage, dead_code)];
	         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	<anon>:6:1: 6:35 warning: this inner attribute syntax is deprecated. The new syntax is `#![foo]`, with a bang and no semicolon.
	<anon>:6 #[allow(deprecated_owned_vector)];
	         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	<anon>:8:9: 8:30 error: unresolved name `max_compressed_length`.
	<anon>:8 let x = max_compressed_length(100);
	                 ^~~~~~~~~~~~~~~~~~~~~
	error: aborting due to previous error
	task 'max_compressed_length_0' failed at '~Any', /private/tmp/rust-Q8uz/rust-0.10/src/libsyntax/diagnostic.rs:88


failures:
    max_compressed_length_0

test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured

task '<main>' failed at 'Some tests failed', /private/tmp/rust-Q8uz/rust-0.10/src/libtest/lib.rs:215

snappy.rs

#![crate_id = "snappy#0.1.0"]
#![crate_type = "lib"]

use std::libc::size_t;

#[link(name = "snappy")]
extern {
    fn snappy_max_compressed_length(source_length: size_t) -> size_t;
}

/**
  Return the compressed length of a buffer with size x

  ```
  let x = max_compressed_length(100);
  assert!(x == 148);
  ```
*/
pub fn max_compressed_length(x: int) -> int {
  let length = unsafe { snappy_max_compressed_length(x as size_t) };
  length as int
}