On 13.02.26 11:28, Jelte Fennema-Nio wrote:
Patch 3 makes copyObject work when using GCC or Clang with -std=c++11 by
introducing pg_exprtype.
Patch 4 starts using pg_exprtype in more places.
I found this paper
https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2927.htm
which led to the addition of typeof into the C standard.
It contains a section 'Why not "decltype"?' that explains how decltype
is different, but it also explains that if typeof were added to C++,
then it would be
std::remove_reference_t<decltype(T)>
What I suggest we should do here is:
1. Add a configure test that checks if the C++ compiler supports typeof.
2. If not, #define typeof to the above expression.
Then code can continue to use typeof unchanged.
