diff options
author | Boris Kolpackov <boris@codesynthesis.com> | 2011-07-22 20:43:35 +0200 |
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committer | Boris Kolpackov <boris@codesynthesis.com> | 2011-07-22 20:43:35 +0200 |
commit | b70088d31a8d3e78409f4247c1f2db9092e828e3 (patch) | |
tree | 94b391194ea0af567fc2a6872ca1a9d9887ee26b /odb/pgsql/pgsql-fwd.hxx | |
parent | 42394a86aafd45d7a03604ce82d9bce471ad121c (diff) |
Get rid of libpq-fe.h inclusion in public headers
The problem with libpq-fe.h is that it is installed in unpredictable
places on different platforms. As a result, a user that uses ODB with
PostgreSQL (and who doesn't really know or care about libpq) is forced
to make sure their application is able to find and include libpq-fe.h
correctly.
Luckily for us, we only use a handful of libpq pointers in public
headers and the workaround is to forward declare them and use that
instead of including libpq-fe.h (which is instead included in source
files).
Diffstat (limited to 'odb/pgsql/pgsql-fwd.hxx')
-rw-r--r-- | odb/pgsql/pgsql-fwd.hxx | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/odb/pgsql/pgsql-fwd.hxx b/odb/pgsql/pgsql-fwd.hxx new file mode 100644 index 0000000..45f085d --- /dev/null +++ b/odb/pgsql/pgsql-fwd.hxx @@ -0,0 +1,21 @@ +// file : odb/pgsql/pgsql-fwd.hxx +// author : Boris Kolpackov <boris@codesynthesis.com> +// copyright : Copyright (c) 2005-2011 Code Synthesis Tools CC +// license : GNU GPL v2; see accompanying LICENSE file + +#ifndef ODB_PGSQL_PGSQL_FWD_HXX +#define ODB_PGSQL_PGSQL_FWD_HXX + +#include <odb/pre.hxx> + +// Forward declaration for some of the types defined in libpq-fe.h. This +// allows us to avoid having to include libpq-fe.h in public headers. +// +typedef unsigned int Oid; + +typedef struct pg_conn PGconn; +typedef struct pg_result PGresult; + +#include <odb/post.hxx> + +#endif // ODB_PGSQL_PGSQL_FWD_HXX |