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Chk OR
chkor_vld(...)
An informative error if the test fails.
Multiple vld_ calls.
vld_
A common mistake is to pass chk_ calls.
chk_
chkor_vld() is relatively slow. If at all possible use chk_null_or() or first test using the individual vld_ functions and then call chkor_vld() to generate an informative error message.
chkor_vld()
chk_null_or()
chkor_vld() chkor_vld(vld_flag(TRUE)) try(chkor_vld(vld_flag(1))) try(chkor_vld(vld_flag(1), vld_flag(2))) chkor_vld(vld_flag(1), vld_flag(TRUE))
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