-Werror=free-nonheap-object in allocators.h line 271

This error comes from schematest.cpp line 129:

char jsonBuffer[65536];
MemoryPoolAllocator<> jsonAllocator(jsonBuffer, sizeof(jsonBuffer));

The destructor for MemoryPoolAllocator does the following:

if (shared_->ownBuffer) {
    baseAllocator_->Free(shared_);
}

When building with GNU 11.4.0 as identified by cmake, this emits -Werror=free-nonheap-object:

[ 98%] Building CXX object test/perftest/CMakeFiles/perftest.dir/schematest.cpp.o
In file included from /grmn/prj/fit/mon/FOC/external/rapidjson/include/rapidjson/document.h:20,
                 from /grmn/prj/fit/mon/FOC/external/rapidjson/include/rapidjson/schema.h:18,
                 from /grmn/prj/fit/mon/FOC/external/rapidjson/test/perftest/schematest.cpp:5:
In static member function ‘static void rapidjson::CrtAllocator::Free(void*)’,
    inlined from ‘rapidjson::MemoryPoolAllocator<BaseAllocator>::~MemoryPoolAllocator() [with BaseAllocator = rapidjson::CrtAllocator]’ at /grmn/prj/fit/mon/FOC/external/rapidjson/include/rapidjson/allocators.h:271:33,
    inlined from ‘rapidjson::MemoryPoolAllocator<BaseAllocator>::~MemoryPoolAllocator() [with BaseAllocator = rapidjson::CrtAllocator]’ at /grmn/prj/fit/mon/FOC/external/rapidjson/include/rapidjson/allocators.h:259:5,
    inlined from ‘virtual void Schema::SetUp()’ at /grmn/prj/fit/mon/FOC/external/rapidjson/test/perftest/schematest.cpp:129:5:
/grmn/prj/fit/mon/FOC/external/rapidjson/include/rapidjson/rapidjson.h:715:38: error: ‘void free(void*)’ called on unallocated object ‘jsonBuffer’ [-Werror=free-nonheap-object]
  715 | #define RAPIDJSON_FREE(ptr) std::free(ptr)
      |                             ~~~~~~~~~^~~~~
/grmn/prj/fit/mon/FOC/external/rapidjson/include/rapidjson/allocators.h:100:54: note: in expansion of macro ‘RAPIDJSON_FREE’
  100 |     static void Free(void *ptr) RAPIDJSON_NOEXCEPT { RAPIDJSON_FREE(ptr); }
      |                                                      ^~~~~~~~~~~~~~
/grmn/prj/fit/mon/FOC/external/rapidjson/test/perftest/schematest.cpp: In member function ‘virtual void Schema::SetUp()’:
/grmn/prj/fit/mon/FOC/external/rapidjson/test/perftest/schematest.cpp:90:14: note: declared here
   90 |         char jsonBuffer[65536];
      |              ^~~~~~~~~~
cc1plus: all warnings being treated as errors

This can be fixed by changing that block to: baseAllocator_->Free(shared_->ownBuffer ? shared_ : nullptr);

Tencent / rapidjson

-Werror=free-nonheap-object in allocators.h line 271 #2267