Get or set the cause attribute

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

cause(x)

cause(x) <- value

Arguments

x	Object.
value	Value.

Value

character(1). Cause attribute.

See also

• assertive.base::cause().

• attributes().

• attr().

Examples

## Scalar cause.
x <- isFlag("xxx")
cause(x)
#> [1] "xxx" is not a boolean flag (TRUE/FALSE).

## Vector cause.
x <- isInRange(c(1L, 2L), lower = 3L)
cause(x)
#> [1] too low too low