jtv@xs4all.nl wrote:
> (a) the C standard has added a sequence point between the arguments in a
> function call, which AFAIK wasn't there before, or the sequence point was
> there all along (and the compiler implements it);

Per C99 6.5.2.2.10, a sequence point occurs between the evaluation of
the arguments to a function and the call of the function itself.
Therefore a sequence point occurs before the call to libpq_gettext(). So
ISTM having libpq_gettext() preserve errno should work.

-Neil

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