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10.267 fegetenv

POSIX specification:
https://pubs.opengroup.org/onlinepubs/9699919799/functions/fegetenv.html

Gnulib module: fenv-environment

Portability problems fixed by Gnulib:

• This function is missing on some platforms: FreeBSD 5.2.1, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 5.1, Solaris 9, Cygwin 1.7.7, MSVC 9, Android 4.4.
• This function clears all exception trap bits on some platforms: glibc 2.19/x86_64, Mac OS X 10.5/i386, Mac OS X 10.5/x86_64.
• This function does not save the exception trap bits on some platforms: AIX 7.3.

Portability problems not fixed by Gnulib: