Macro more_asserts::assert_lt
source · [−]macro_rules! assert_lt {
($left:expr, $right:expr) => { ... };
($left:expr, $right:expr, ) => { ... };
($left:expr, $right:expr, $($msg_args:tt)+) => { ... };
}
Expand description
Panics if the first expression is not strictly less than 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_lt!(3, 4);
assert_lt!(3, 4, "With a message");
assert_lt!(3, 4, "With a formatted message: {}", "oh no");
}