kc3-lang/gnulib/modules/sqrtl

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• Hash : 7fd1d131
  Author :
  Date : 2012-03-14T01:51:10
  

  sqrtl: Bypass broken implementation in OpenBSD 5.1/SPARC.
  
  * lib/math.in.h (sqrtl): Replace it if REPLACE_SQRTL is 1.
  * m4/sqrtl.m4 (gl_FUNC_SQRTL_WORKS): New macro.
  (gl_FUNC_SQRTL): Invoke it. Set REPLACE_SQRTL to 1 if sqrtl() produces
  too big rounding errors.
  * m4/math_h.m4 (gl_MATH_H_DEFAULTS): Initialize REPLACE_SQRTL.
  * modules/math (Makefile.am): Substitute REPLACE_SQRTL.
  * modules/sqrtl (configure.ac): Consider REPLACE_SQRTL.
  (Depends-on): Update conditions.
  * tests/test-sqrtl.c (my_ldexpl): New function.
  (main): Add test of a particular value.
  * doc/posix-functions/sqrtl.texi: Mention the OpenBSD 5.1/SPARC bug.
  

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• modules/sqrtl

• Description:
  sqrtl() function: square root with long double argument.
  
  Files:
  lib/sqrtl.c
  m4/sqrtl.m4
  
  Depends-on:
  math
  extensions
  sqrt            [{ test $HAVE_SQRTL = 0 || test $REPLACE_SQRTL = 1; }]
  float           [{ test $HAVE_SQRTL = 0 || test $REPLACE_SQRTL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
  isnanl          [{ test $HAVE_SQRTL = 0 || test $REPLACE_SQRTL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
  frexpl          [{ test $HAVE_SQRTL = 0 || test $REPLACE_SQRTL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
  ldexpl          [{ test $HAVE_SQRTL = 0 || test $REPLACE_SQRTL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
  
  configure.ac:
  gl_FUNC_SQRTL
  if test $HAVE_SQRTL = 0 || test $REPLACE_SQRTL = 1; then
    AC_LIBOBJ([sqrtl])
  fi
  gl_MATH_MODULE_INDICATOR([sqrtl])
  
  Makefile.am:
  
  Include:
  <math.h>
  
  Link:
  $(SQRTL_LIBM)
  
  License:
  LGPL
  
  Maintainer:
  Paolo Bonzini
  

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