Attempt to Detect Whether diff Utility is Available

Checks whether tools::Rdiff issues a warning when running with useDiff=TRUE and if it does assumes this is because the diff utility is not available. Intended primarily for testing purposes.

has_Rdiff(test.with = tools::Rdiff)

Arguments

test.with

function to test for diff presence with, typically Rdiff

Value

TRUE or FALSE

Examples

has_Rdiff()
#> [1] TRUE