kc3-lang/gnulib/doc/posix-headers/fenv.texi

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• Hash : 485d983b
  Author :
  Date : 2023-11-04T13:22:08
  

  fenv: Document an ABI break on MSVC.
  
  * doc/posix-headers/fenv.texi: Document why fegetround and fesetround
  are seemingly broken on MSVC.
  

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• doc/posix-headers/fenv.texi

• @node fenv.h
  @section @file{fenv.h}
  
  POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/fenv.h.html}
  
  Gnulib module: fenv
  
  Portability problems fixed by Gnulib:
  @itemize
  @item
  This header file is missing on some platforms:
  FreeBSD 5.2.1, NetBSD 5.0, OpenBSD 3.8, AIX 5.1, IRIX 6.5, Cygwin 1.7.7, MSVC 9.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @item
  On MSVC, the values of the rounding direction macros have changed:
  @c https://github.com/MicrosoftDocs/cpp-docs/issues/4796
  In MSVC 14, @code{FE_UPWARD} is 0x100 and @code{FE_DOWNWARD} is 0x200,
  whereas in MSVC 14.30, it's the opposite.
  @end itemize
  

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