`mustBeLessThan`

Checks that every element is strictly less than a bound.

Category: Programming > Functions

Syntax

mustBeLessThan(A, c)

Checks that every element of A is strictly less than c. Returns nothing if the check passes and throws an error if not.

Description

mustBeLessThan is a validator: it inspects its input and either returns silently or raises an error with the identifier MATLAB:validators:mustBeLessThan. The error message states the requirement that was violated, so the caller sees what was expected rather than a generic failure.

Each element is compared with the scalar c using <. Any element that fails the comparison makes the whole call error.

Input arguments

A: The value to check. Any array of the class the validator accepts.
c: Scalar bound to compare against.

Example

Passing and failing input

mustBeLessThan([1 2 3], 5);
disp('passed')
try
    mustBeLessThan([1 9 2], 5)
catch err
    disp(err.message)
end

Output

passed
Value must be less than 5.

See also

mustBeLessThanOrEqual mustBeGreaterThan mustBeNegative mustBeInRange