cppgres.hpp File Reference

#include "cppgres/datum.hpp"
#include "cppgres/error.hpp"
#include "cppgres/exception_impl.hpp"
#include "cppgres/executor.hpp"
#include "cppgres/function.hpp"
#include "cppgres/guard.hpp"
#include "cppgres/imports.h"
#include "cppgres/memory.hpp"
#include "cppgres/set.hpp"
#include "cppgres/types.hpp"
#include "cppgres/node.hpp"
#include "cppgres/xact.hpp"

Go to the source code of this file.

Macros
#define	cppgres_hpp
#define	postgres_function(name, function)
	Export a C++ function as a Postgres function.

Macro Definition Documentation

postgres_function

#define postgres_function	(		name,
			function
	)

Value:

  extern "C" {                                                                                     \
  PG_FUNCTION_INFO_V1(name);                                                                       \
  Datum name(PG_FUNCTION_ARGS) { return cppgres::postgres_function(function)(fcinfo); }            \
  }

Export a C++ function as a Postgres function.

Its argument types must conform to the cppgres::convertible_from_nullable_datum concept and its return type must conform to the cppgres::convertible_into_nullable_datum or cppgres::datumable_iterator concepts. This requirement is inherited from cppgres::postgres_function.

• name Name to export it under
• function C++ function or lambda

Note

You no longer need to use PG_FUNCTION_INFO_V1 macro.