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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /sysdeps/generic/s_ccosf.c
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
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(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'sysdeps/generic/s_ccosf.c')
-rw-r--r--sysdeps/generic/s_ccosf.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/sysdeps/generic/s_ccosf.c b/sysdeps/generic/s_ccosf.c
new file mode 100644
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+++ b/sysdeps/generic/s_ccosf.c
@@ -0,0 +1,78 @@
+/* Return cosine of complex float value.
+ Copyright (C) 1997 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 <complex.h>
+#include <fenv.h>
+#include <math.h>
+
+
+__complex__ float
+__ccosf (__complex__ float x)
+{
+ __complex__ float res;
+
+ if (!isfinite (__real__ x) || __isnanf (__imag__ x))
+ {
+ if (__real__ x == 0.0 || __imag__ x == 0.0)
+ {
+ __real__ res = __nanf ("");
+ __imag__ res = 0.0;
+
+#ifdef FE_INVALID
+ if (__isinff (__real__ x))
+ feraiseexcept (FE_INVALID);
+#endif
+ }
+ else if (__isinff (__imag__ x))
+ {
+ __real__ res = HUGE_VALF;
+ __imag__ res = __nanf ("");
+
+#ifdef FE_INVALID
+ if (__isinff (__real__ x))
+ feraiseexcept (FE_INVALID);
+#endif
+ }
+ else
+ {
+ __real__ res = __nanf ("");
+ __imag__ res = __nanf ("");
+
+#ifdef FE_INVALID
+ if (isfinite (__imag__ x))
+ feraiseexcept (FE_INVALID);
+#endif
+ }
+ }
+ else
+ {
+ __complex__ float y;
+
+ __real__ y = -__imag__ x;
+ __imag__ y = __real__ x;
+
+ res = __ccoshf (y);
+ }
+
+ return res;
+}
+#ifndef __ccosf
+weak_alias (__ccosf, ccosf)
+#endif