Test List macros in C++ extensions

All of these macros already work in C++ with Clang and GCC (the only
compilers we're currently testing C++ extension support for).  This
adds a regression test for them in our test C++ extension, so we can
safely change their implementation without accidentally breaking C++.
Some of the List macros didn't work in C++ in the past (see commit
d5ca15ee5), and this would have caught that.

Author: Jelte Fennema-Nio <postgres@jeltef.nl>
Discussion: https://www.postgresql.org/message-id/flat/CAGECzQR21OnnKiZO_1rLWO0-16kg1JBxnVq-wymYW0-_1cUNtg@mail.gmail.com
This commit is contained in:
Peter Eisentraut 2026-02-17 10:06:32 +01:00
parent bd626ef093
commit 3d28ecb5ac

View file

@ -17,6 +17,8 @@
extern "C" {
#include "postgres.h"
#include "fmgr.h"
#include "nodes/pg_list.h"
#include "nodes/primnodes.h"
PG_MODULE_MAGIC;
@ -32,6 +34,21 @@ test_cplusplus_add(PG_FUNCTION_ARGS)
{
int32 a = PG_GETARG_INT32(0);
int32 b = PG_GETARG_INT32(1);
RangeTblRef *node = makeNode(RangeTblRef);
List *list = list_make1(node);
foreach_ptr(RangeTblRef, rtr, list)
{
(void) rtr;
}
foreach_node(RangeTblRef, rtr, list)
{
(void) rtr;
}
list_free(list);
pfree(node);
PG_RETURN_INT32(a + b);
}