# Macro core::debug_assert_ne 1.13.0[−][src]

    macro_rules! debug_assert_ne {
        ($($arg:tt)*) => { ... };
    }

Asserts that two expressions are not equal to each other.

On panic, this macro will print the values of the expressions with their debug representations.

Unlike `assert_ne!`, `debug_assert_ne!` statements are only enabled in non optimized builds by default. An optimized build will omit all `debug_assert_ne!` statements unless `-C debug-assertions` is passed to the compiler. This makes `debug_assert_ne!` useful for checks that are too expensive to be present in a release build but may be helpful during development.

# Examples

    let a = 3;
    let b = 2;
    debug_assert_ne!(a, b);Run

# Help

## Keyboard Shortcuts

`?`
  Show this help dialog
`S`
  Focus the search field
`↑`
  Move up in search results
`↓`
  Move down in search results
`↹`
  Switch tab
`⏎`
  Go to active search result
`+`
  Expand all sections
`-`
  Collapse all sections

## Search Tricks

Prefix searches with a type followed by a colon (e.g. `fn:`) to restrict the search to a given type.

Accepted types are: `fn`, `mod`, `struct`, `enum`, `trait`, `type`, `macro`, and `const`.

Search functions by type signature (e.g. `vec -> usize` or `* -> vec`)

Search multiple things at once by splitting your query with comma (e.g. `str,u8` or `String,struct:Vec,test`)