kc3-lang/gnulib/doc/posix-functions/log1p.texi

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• Hash : 55b49420
  Author :
  Date : 2012-03-11T01:27:59
  

  log1p-ieee: Work around test failure on AIX 7.1 and HP-UX 11.
  
  * m4/log1p-ieee.m4: New file.
  * m4/log1p.m4 (gl_FUNC_LOG1P): If gl_FUNC_LOG1P_IEEE is present, test
  whether log1p works with a minus zero argument. Replace it if not.
  * lib/math.in.h (log1p): Override if REPLACE_LOG1P is 1.
  * m4/math_h.m4 (gl_MATH_H_DEFAULTS): Initialize REPLACE_LOG1P.
  * modules/math (Makefile.am): Substitute REPLACE_LOG1P.
  * modules/log1p (configure.ac): Consider REPLACE_LOG1P.
  (Depends-on): Update conditions.
  * modules/log1p-ieee (Files): Add m4/log1p-ieee.m4, m4/minus-zero.m4,
  m4/signbit.m4.
  (configure.ac): Invoke gl_FUNC_LOG1P_IEEE.
  * doc/posix-functions/log1p.texi: Mention the log1p-ieee module.
  

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• doc/posix-functions/log1p.texi

• @node log1p
  @section @code{log1p}
  @findex log1p
  
  POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/log1p.html}
  
  Gnulib module: log1p or log1p-ieee
  
  Portability problems fixed by either Gnulib module @code{log1p} or @code{log1p-ieee}:
  @itemize
  @item
  This function is missing on some platforms:
  Minix 3.1.8, MSVC 9.
  @end itemize
  
  Portability problems fixed by Gnulib module @code{log1p-ieee}:
  @itemize
  @item
  This function has problems when the argument is minus zero on some platforms:
  AIX 7.1, HP-UX 11.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @end itemize
  

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