Macro core::debug_assert_ne
1.13.0 · source · macro_rules! debug_assert_ne { ($($arg:tt)*) => { ... }; }
Expand description
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 not execute
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. The result of expanding debug_assert_ne!
is always type checked.
§Examples
let a = 3;
let b = 2;
debug_assert_ne!(a, b);
Run