Macro more_asserts::assert_le

macro_rules! assert_le {
    ($left:expr, $right:expr) => { ... };
    ($left:expr, $right:expr, ) => { ... };
    ($left:expr, $right:expr, $($msg_args:tt)+) => { ... };
}

Panics if the first expression is not less than or equal to the second. Requires that the values be comparable with <=.

On failure, panics and prints the values out in a manner similar to prelude’s assert_eq!.

Optionally may take an additional message to display on failure, which is formatted using standard format syntax.

Example

#[macro_use]
extern crate more_asserts;

fn main() {
    assert_le!(4, 4);
    assert_le!(4, 5);
    assert_le!(4, 5, "With a message");
    assert_le!(4, 4, "With a formatted message: {}", "oh no");
}