kc3-lang/gnulib/doc/posix-functions/log1pl.texi

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• Hash : 6958256b
  Author :
  Date : 2021-01-31T13:19:17
  

  log1pl: Work around musl libc bug.
  
  * doc/posix-functions/log1pl.texi: Document musl libc bug.
  * m4/log1pl.m4 (gl_FUNC_LOG1PL_WORKS): New macro.
  (gl_FUNC_LOG1PL): Invoke it.
  

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• doc/posix-functions/log1pl.texi

• @node log1pl
  @section @code{log1pl}
  @findex log1pl
  
  POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/log1pl.html}
  
  Gnulib module: log1pl or log1pl-ieee
  
  Portability problems fixed by either Gnulib module @code{log1pl} or @code{log1pl-ieee}:
  @itemize
  @item
  This function is missing on some platforms:
  FreeBSD 6.0, NetBSD 9.0, OpenBSD 3.8, Minix 3.1.8, AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 9, Cygwin 1.7.x, MSVC 9, Android 4.4.
  @item
  This function produces results which are accurate to only 16 digits on some
  platforms:
  musl libc 1.2.2/arm64, musl libc 1.2.2/s390x.
  @end itemize
  
  Portability problems fixed by Gnulib module @code{log1pl-ieee}:
  @itemize
  @item
  This function has problems when the argument is minus zero on some platforms:
  AIX 7.1, IRIX 6.5.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @end itemize
  

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