On Wed, 19 Jan 2022 at 08:10, Matthias Kretz wrote: > Follow-up to my last patch. This one is a more thorough fix. Tested on > x86_64- > linux. OK for trunk? > > ---- 8< ---- > > Use SFINAE magic to support: "It is unspecified whether math_errhandling > is a macro or an identifier with external linkage." [C Standard] >
The patch is OK for trunk, but I don't understand what the C standard means here. "the macro math_errhandling expands to [...]. It is unspecified whether math_errhandling is a macro or an identifier with external linkage." So is it a macro or not?
