[pgrouting-dev] Using pfree/palloc in c++ code.

[Dave Potts]

I am trying to write some code in c++

Its suggested that I should pfree/pmalloc to delete and free memory.

Problem is that when I use them,  I get an error from the loader

select pgr_sql_check_tsp('select * from edge4');
ERROR:  could not load library 
"/usr/lib/postgresql/9.1/lib/librouting_tsp.so": 
/usr/lib/postgresql/9.1/lib/librouting_tsp.so: undefined symbol: 
_Z18MemoryContextAllocP17MemoryContextDatam
atsp=#

It looks like a name mangling issue

I tried inserting extern "C" statments around the postgres include files 
(palloc.h) in my code because I discovered that, postgres source does 
not do this, results same issue.

I noticed that ./src/apsp_warshall/src/apsp_boost_wrapper.cpp, has an 
instance of pfree commented out, is there a reasons for this?

Does anybody known

1.  Is it possible to use pfree/palloc in a potgres cpp file?
2.  Can I use  new/malloc/delete etc instead of pfree/palloc

regards

Dave.