pgsql: Make fixed-length list building macros work in C++

Make fixed-length list building macros work in C++

Compound literals, as used in pg_list.h for list_makeN(), are not a
C++ feature. MSVC doesn't accept these. (GCC and Clang accept them,
but they would warn in -pedantic mode.) Replace with equivalent
inline functions. (These are the only instances of compound literals
used in PostgreSQL header files.)

Author: Jelte Fennema-Nio <postgres(at)jeltef(dot)nl>
Discussion: https://www.postgresql.org/message-id/flat/CAGECzQR21OnnKiZO_1rLWO0-16kg1JBxnVq-wymYW0-_1cUNtg%40mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/f8e7ca32851082a85d628b7821ae674be09bf1f3

Modified Files
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src/include/nodes/pg_list.h | 40 ++++++++++++++++++++++++++++++++++++----
1 file changed, 36 insertions(+), 4 deletions(-)