kc3-lang/gnulib/doc/posix-functions/expm1f.texi

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• Hash : 571a0fae
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  Date : 2021-01-04T22:27:47
  

  expm1f-ieee: Work around AIX 7.2 bug.
  
  * m4/expm1f.m4 (gl_FUNC_EXPM1F): Initialize gl_expm1f_required. If
  module 'expm1f-ieee' is in use, check whether expm1f works according to
  IEEE.
  * m4/expm1f-ieee.m4: New file.
  * modules/expm1f-ieee (Files): Add it.
  (Depends-on): Update conditions.
  (configure.ac): Invoke gl_FUNC_EXPM1F_IEEE.
  * doc/posix-functions/expm1f.texi: Mention the AIX bug.
  

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• doc/posix-functions/expm1f.texi

• @node expm1f
  @section @code{expm1f}
  @findex expm1f
  
  POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/expm1f.html}
  
  Gnulib module: expm1f or expm1f-ieee
  
  Portability problems fixed by either Gnulib module @code{expm1f} or @code{expm1f-ieee}:
  @itemize
  @item
  This function is missing on some platforms:
  Minix 3.1.8, AIX 5.1, HP-UX 11, Solaris 9, mingw, MSVC 9.
  @item
  This function produces wrong results for arguments <= @minus{}17.32868 on some platforms:
  IRIX 6.5.
  @end itemize
  
  Portability problems fixed by Gnulib module @code{expm1f-ieee}:
  @itemize
  @item
  This function returns a positive zero for a minus zero argument
  on some platforms:
  AIX 7.2.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @end itemize
  

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