Try to fix portability issue in enum renumbering (again).
The hack embodied in commit 4ba61a487 no longer works after today's change
to allow DatumGetFloat4/Float4GetDatum to be inlined (commit 14cca1bf8).
Probably what's happening is that the faulty compilers are deciding that
the now-inlined assignment is a no-op and so they're not required to
round to float4 width.
We had a bunch of similar issues earlier this year in the degree-based
trig functions, and eventually settled on using volatile intermediate
variables as the least ugly method of forcing recalcitrant compilers
to do what the C standard says (cf commit 82311bcdd). Let's see if
that method works here.
Discussion: <4640.1472664476@sss.pgh.pa.us>
Branch
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master
Details
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http://git.postgresql.org/pg/commitdiff/65a588b4c3b06aefe0b00d6222598d4cff3542c2
Modified Files
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src/backend/catalog/pg_enum.c | 26 ++++++++++++++------------
1 file changed, 14 insertions(+), 12 deletions(-)