Deprecated, do not use.
Compatibility mode only (–compat[=4]):
For expressions using delete[], this option generates a call to the runtime library function _vector_deletex_ instead of generating a call to _vector_delete_. The function _vector_delete_ takes two arguments: the pointer to be deleted and the size of each array element.
The function _vector_deletex_ behaves the same as _vector_delete_ except that it takes a third argument: the address of the destructor for the class. This third argument is not used by the function, but is provided to be used by third-party vendors.
The compiler generates a call to _vector_delete_ for expressions using delete[].
This is an obsolete option that will be removed in future releases. Do not use this option unless you have bought some software from a third-party vendor and the vendor recommends using this option.