https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82542
--- Comment #14 from joseph at codesourcery dot com <joseph at codesourcery dot com> --- On Wed, 25 Sep 2019, nsz at gcc dot gnu.org wrote: > e.g. currently there is now way to tell what _FloatN > variants gcc understands, even though -fdump-translation-unit > with empty tu worked for it reliably previously. For that, I recommend checking which __FLT* predefined macros are defined (using -dM or #ifdef rather than a dump of compiler internals, or define __STDC_WANT_IEC_60559_TYPES_EXT__ and include <float.h> and check which public FLT* macros are defined there).
