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

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• Hash : b3f31eea
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  Date : 2012-02-29T20:26:22
  

  hypotf-ieee: Work around test failure on OSF/1 and native Windows.
  
  * m4/hypotf-ieee.m4: New file.
  * m4/hypotf.m4 (gl_FUNC_HYPOTF): If gl_FUNC_HYPOTF_IEEE is present,
  test whether hypotf works with mixed NaN and Infinity arguments.
  Replace it if not.
  * modules/hypotf-ieee (Files): Add m4/hypotf-ieee.m4.
  (Depends-on): Add hypot-ieee.
  (configure.ac): Invoke gl_FUNC_HYPOTF_IEEE.
  * doc/posix-functions/hypotf.texi: Mention the hypotf-ieee module.
  

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• doc/posix-functions/hypotf.texi

• @node hypotf
  @section @code{hypotf}
  @findex hypotf
  
  POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/hypotf.html}
  
  Gnulib module: hypotf or hypotf-ieee
  
  Portability problems fixed by either Gnulib module @code{hypotf} or @code{hypotf-ieee}:
  @itemize
  @item
  This function is missing on some platforms:
  Minix 3.1.8, AIX 5.1, HP-UX 11, Solaris 9, MSVC 9.
  @item
  This function produces wrong values on some platforms:
  NetBSD 5.1, OpenBSD 4.9.
  @end itemize
  
  Portability problems fixed by Gnulib module @code{hypot-ieee}:
  @itemize
  @item
  When the arguments are mixed NaN and Infinity, this function returns a wrong
  value on some platforms:
  OSF/1 5.1, mingw, MSVC 9.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @end itemize
  

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