chk_null_or: Check NULL Or

In chk: Check User-Supplied Function Arguments

Check NULL Or

Description

Checks if NULL or passes test.

Usage

chk_null_or(x, chk, ..., vld, x_name = NULL)

Arguments

x	The object to check.
chk	A chk function. Soft-deprecated for vld.
...	Arguments passed to chk.
vld	A vld function.
x_name	A string of the name of object x or NULL.

Value

An informative error if the test fails.

Examples

chk_null_or(NULL, chk_number)
chk_null_or(1, chk_number)
try(chk_null_or("1", chk_number))

chk documentation built on Sept. 11, 2024, 7:34 p.m.