assertive (version 0.2-1)

cause: Get or set the "cause" attribute.

Description

Gets or sets the "cause" (of failure) attribute of a variable.

Usage

cause(x)

cause(x) <- value

Arguments

x

Any variable.

value

Passed to sprintf and stored in the "cause" attribute.

Value

• The get method returns the "cause" attribute.

Examples

yn <- is_a_bool(123)
cause(yn)