view modules/cbrtl @ 36236:28e5b28a0666

cbrtl-ieee: Work around test failure on IRIX 6.5. * m4/cbrtl-ieee.m4: New file. * m4/cbrtl.m4 (gl_FUNC_CBRTL): If gl_FUNC_CBRTL_IEEE is present, test whether cbrtl works with a minus zero argument. Replace it if not. * lib/math.in.h (cbrtl): Override if REPLACE_CBRTL is 1. * m4/math_h.m4 (gl_MATH_H_DEFAULTS): Initialize REPLACE_CBRTL. * modules/math (Makefile.am): Substitute REPLACE_CBRTL. * modules/cbrtl (configure.ac): Consider REPLACE_CBRTL. (Depends-on): Update conditions. * modules/cbrtl-ieee (Files): Add m4/cbrtl-ieee.m4, m4/minus-zero.m4, m4/signbit.m4. (configure.ac): Invoke gl_FUNC_CBRTL_IEEE. * lib/cbrtl.c (cbrtl) [IRIX]: Avoid an unnecessary addition. * doc/posix-functions/cbrtl.texi: Mention the cbrtl-ieee module.
author Bruno Haible <bruno@clisp.org>
date Thu, 01 Mar 2012 04:54:18 +0100
parents b169ebd5b090
children fdbe3125f81a
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Description:
cbrtl() function: cube root.

Files:
lib/cbrtl.c
m4/cbrtl.m4
m4/cbrt.m4
m4/mathfunc.m4

Depends-on:
math
cbrt            [{ test $HAVE_CBRTL = 0 || test $REPLACE_CBRTL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 1]
isfinite        [{ test $HAVE_CBRTL = 0 || test $REPLACE_CBRTL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
frexpl          [{ test $HAVE_CBRTL = 0 || test $REPLACE_CBRTL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
ldexpl          [{ test $HAVE_CBRTL = 0 || test $REPLACE_CBRTL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]

configure.ac:
gl_FUNC_CBRTL
if test $HAVE_CBRTL = 0 || test $REPLACE_CBRTL = 1; then
  AC_LIBOBJ([cbrtl])
fi
gl_MATH_MODULE_INDICATOR([cbrtl])

Makefile.am:

Include:
<math.h>

Link:
$(CBRTL_LIBM)

License:
LGPL

Maintainer:
Bruno Haible