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authorjakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>2011-01-16 16:44:35 +0000
committerjakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>2011-01-16 16:44:35 +0000
commite7b8ec290314a24d67f8256c75b34a6a627c5205 (patch)
treecbbd98da06ef06f334e26d4cd08eea03e60befdb /libquadmath/math/cprojq.c
parentb12676a5853278cf006fbc0908d35cb9d5ba7adc (diff)
downloadppe42-gcc-e7b8ec290314a24d67f8256c75b34a6a627c5205.tar.gz
ppe42-gcc-e7b8ec290314a24d67f8256c75b34a6a627c5205.zip
PR fortran/46416
* quadmath.h (cbrtq, finiteq, isnanq, signbitq, sqrtq): Remove const from prototype argument. (cimagq, conjq, cprojq, crealq, fdimq, fmaxq, fminq, ilogbq, llrintq, log2q, lrintq, nearbyintq, remquoq): New prototypes. (__quadmath_extern_inline): Define. (cimagq, conjq, crealq): New inlines. * Makefile.am (libquadmath_la_SOURCES): Add math/cimagq.c, math/conjq.c, math/cprojq.c, math/crealq.c, math/fdimq.c, math/fmaxq.c, math/fminq.c, math/ilogbq.c, math/llrintq.c, math/log2q.c, math/lrintq.c, math/nearbyintq.c and math/remquoq.c. * Makefile.in: Regenerated. * quadmath_weak.h (cimagq, conjq, cprojq, crealq, fdimq, fmaxq, fminq, ilogbq, llrintq, log2q, lrintq, nearbyintq, remquoq): Add. * quadmath-imp.h (__LITTLE_ENDIAN__): Don't define. (ieee854_float128): Use __BYTE_ORDER == __ORDER_BIG_ENDIAN__ tests instead of __BIG_ENDIAN__. * quadmath.map (QUADMATH_1.0): Add cimagq, conjq, cprojq, crealq, fdimq, fmaxq, fminq, ilogbq, llrintq, log2q, lrintq, nearbyintq and remquoq. * libquadmath.texi (cimagq, conjq, cprojq, crealq, fdimq, fmaxq, fminq, ilogbq, llrintq, log2q, lrintq, nearbyintq, remquoq): Add. * math/cprojq.c: New file. * math/ilogbq.c: New file. * math/fminq.c: New file. * math/llrintq.c: New file. * math/log2q.c: New file. * math/lrintq.c: New file. * math/crealq.c: New file. * math/nearbyintq.c: New file. * math/fmaxq.c: New file. * math/conjq.c: New file. * math/remquoq.c: New file. * math/cimagq.c: New file. * math/fdimq.c: New file. * math/ldexpq.c: Include errno.h. Set errno to ERANGE if needed. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@168854 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libquadmath/math/cprojq.c')
-rw-r--r--libquadmath/math/cprojq.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/libquadmath/math/cprojq.c b/libquadmath/math/cprojq.c
new file mode 100644
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+++ b/libquadmath/math/cprojq.c
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+/* Compute projection of complex __float128 value to Riemann sphere.
+ Copyright (C) 1997, 1999, 2010 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include "quadmath-imp.h"
+
+
+__complex128
+cprojq (__complex128 x)
+{
+ if (isnanq (__real__ x) && isnanq (__imag__ x))
+ return x;
+ else if (!finiteq (__real__ x) || !finiteq (__imag__ x))
+ {
+ __complex128 res;
+
+ __real__ res = __builtin_inf ();
+ __imag__ res = copysignq (0.0, __imag__ x);
+
+ return res;
+ }
+
+ return x;
+}
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