[Bug 273338] '#include <cmath>' fails on 14 because of a likely bug with error: expected unqualified-id
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Date: Fri, 25 Aug 2023 07:46:41 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=273338
Mark Millard <marklmi26-fbsd@yahoo.com> changed:
What |Removed |Added
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CC| |marklmi26-fbsd@yahoo.com
--- Comment #2 from Mark Millard <marklmi26-fbsd@yahoo.com> ---
The messages indicate that the syntax after substitution of
the macro is wrong. Showing just the part of the text that
you provided but after substitution:
return std::(sizeof(x) == sizeof(long double) ? isnan_ld (x)
(Not shown is what was on the line(s) after \ so I've only a
prefix of the text to work with.)
mps/types.h is using a macro isnan to override the libc++
definition, producing something that is invalid C++ source
code from what was valid C++ source without the macro
definition.
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