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|The C++ versus the C interface (version 2)|
Not all functionality of the C-interface is provided, but as
term_t are essentially the same
thing with type-conversion between the two (using the
field), this interface can be freely mixed with the functions defined
for plain C. For checking return codes from C functions, it is
recommended to use PlCheck().
Using this interface rather than the plain C-interface requires a
little more resources. More term-references are wasted (but reclaimed on
return to Prolog or using
PlFrame). Use of some
intermediate types (
functor_t etc.) is not supported in the
current interface, causing more hash-table lookups. This could be fixed,
at the price of slighly complicating the interface.