Backport of isFALSE for R < 3.4.2

See the original description in base::isFALSE.

isFALSE(x)

Examples

# get function from namespace instead of possibly getting
# implementation shipped with recent R versions:
bp_isFALSE = getFromNamespace("isFALSE", "backports")

bp_isFALSE(FALSE)
#> [1] TRUE
bp_isFALSE(iris)
#> [1] FALSE