Adds the CPPALLY_CHECK_FACTORS flag to Makevars

Adds a flag to Makevars which enables stricter validation on factor levels at the point of r_factors construction. This avoids creating r_factors objects with invalid levels and avoiding potential R crashes.

The default behaviour is NOT to validate factor levels, which is naturally faster when calling C++ functions that take r_factors inputs.

Usage

use_check_factors(quiet = FALSE)

Arguments

quiet

[logical(1)] - Should messages be suppressed? Default is FALSE.

Value

Invisibly adds the CPPALLY_CHECK_FACTORS flag to Makevars.