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Rollup merge of #42469 - citizen428:document-assert-macros, r=steveklabnik

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Doc changes for assert macros

See #29381
This commit is contained in:
Corey Farwell 2017-06-06 22:36:36 -04:00 committed by GitHub
commit 7f8467eaaf
1 changed files with 13 additions and 5 deletions
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18
src/libcore/macros.rs
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@ -35,6 +35,8 @@ macro_rules! panic {
/// This will invoke the [`panic!`] macro if the provided expression cannot be
/// evaluated to `true` at runtime.
///
/// # Uses
///
/// Assertions are always checked in both debug and release builds, and cannot
/// be disabled. See [`debug_assert!`] for assertions that are not enabled in
/// release builds by default.
@ -45,7 +47,9 @@ macro_rules! panic {
/// Other use-cases of `assert!` include [testing] and enforcing run-time
/// invariants in safe code (whose violation cannot result in unsafety).
///
/// This macro has a second version, where a custom panic message can
/// # Custom Messages
///
/// This macro has a second form, where a custom panic message can
/// be provided with or without arguments for formatting.
///
/// [`panic!`]: macro.panic.html
@ -85,14 +89,15 @@ macro_rules! assert {
);
}
/// Asserts that two expressions are equal to each other.
/// Asserts that two expressions are equal to each other (using [`PartialEq`]).
///
/// On panic, this macro will print the values of the expressions with their
/// debug representations.
///
/// Like [`assert!`], this macro has a second version, where a custom
/// Like [`assert!`], this macro has a second form, where a custom
/// panic message can be provided.
///
/// [`PartialEq`]: cmp/trait.PartialEq.html
/// [`assert!`]: macro.assert.html
///
/// # Examples
@ -130,14 +135,15 @@ macro_rules! assert_eq {
});
}
/// Asserts that two expressions are not equal to each other.
/// Asserts that two expressions are not equal to each other (using [`PartialEq`]).
///
/// On panic, this macro will print the values of the expressions with their
/// debug representations.
///
/// Like `assert!()`, this macro has a second version, where a custom
/// Like [`assert!`], this macro has a second form, where a custom
/// panic message can be provided.
///
/// [`PartialEq`]: cmp/trait.PartialEq.html
/// [`assert!`]: macro.assert.html
///
/// # Examples
@ -183,6 +189,8 @@ macro_rules! assert_ne {
/// Like [`assert!`], this macro also has a second version, where a custom panic
/// message can be provided.
///
/// # Uses
///
/// Unlike [`assert!`], `debug_assert!` statements are only enabled in non
/// optimized builds by default. An optimized build will omit all
/// `debug_assert!` statements unless `-C debug-assertions` is passed to the