assert_is_loaded | R Documentation |
Checks to see if the input DLL (a.k.a. shared object) is loaded.
assert_is_loaded(x, severity = getOption("assertive.severity", "stop"))
is_loaded(
x,
PACKAGE = "",
type = c("", "C", "Fortran", "Call", "External"),
.xname = get_name_in_parent(x)
)
x |
A string naming the symbol in a DLL to check. |
severity |
How severe should the consequences of the assertion be?
Either |
PACKAGE |
A string naming an R package to restrict the search to, or
|
type |
A string naming the type of external code call to restrict the
search to, or |
.xname |
Not intended to be used directly. |
is_loaded
wraps is.loaded
, providing more
information on failure. assert_is_loaded
returns nothing but
throws an error if is_loaded
returns FALSE
From R 4.4.0, DLL for base packages are not searchable, so
is.loaded
returns FALSE, so is_loaded
also returns FALSE.
is.loaded
.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.