vec_ptype_container2: Find the container type of a pair of vectors
Description
vec_ptype_container2() finds the common container type of two vectors.
Like vec_ptype2(), vec_ptype_container2() powers coercion but should
usually not be called directly. Instead, vec_ptype_container_common()
should be used.
Usage
vec_ptype_container2(x, y)
# S3 method for default
vec_ptype_container2(x, y)