mustBePositive

Checks that value is positive or raise an error.

Syntax

• mustBePositive(var)
• mustBePositive(var, argPosition)
• C++: void mustBePositive(const ArrayOfVector& args, int argPosition)

Input argument

• var - a variable: all supported types and classes that implement isnumeric, islogical, all, isreal, and gt methods.
• argPosition - a positive integer value: Position of input argument.

Description

mustBePositive checks that value is positive or raise an error.

Example

mustBePositive(1)
mustBePositive(-1)

See also

mustBeNonnegative.

History

Author

Allan CORNET