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authorBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2008-09-25 19:07:18 +0000
committerBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2008-09-25 19:07:18 +0000
commitc7a58c2edadb8fce84ab2f8b129a87eb19bdc485 (patch)
treeb0ce15fb6eb16bbfe34612a21ffc16709d397b33 /libm/s_remquo.c
parentc8d8b6d30a29b353637cd1c7379402bff2481b79 (diff)
- add some more math functions (patch from gentoo/solar)
Diffstat (limited to 'libm/s_remquo.c')
-rw-r--r--libm/s_remquo.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/libm/s_remquo.c b/libm/s_remquo.c
new file mode 100644
index 000000000..18853e211
--- /dev/null
+++ b/libm/s_remquo.c
@@ -0,0 +1,38 @@
+/* Copyright (C) 2002 by Red Hat, Incorporated. All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software
+ * is freely granted, provided that this notice is preserved.
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+libm_hidden_proto(remquo)
+#ifdef __STDC__
+ double remquo(double x, double y, int *quo) /* wrapper remquo */
+#else
+ double remquo(x,y,quo) /* wrapper remquo */
+ double x,y;
+ int *quo;
+#endif
+{
+ int signx, signy, signres;
+ int mswx;
+ int mswy;
+ double x_over_y;
+
+ GET_HIGH_WORD(mswx, x);
+ GET_HIGH_WORD(mswy, y);
+
+ signx = (mswx & 0x80000000) >> 31;
+ signy = (mswy & 0x80000000) >> 31;
+
+ signres = (signx ^ signy) ? -1 : 1;
+
+ x_over_y = fabs(x / y);
+
+ *quo = signres * (lrint(x_over_y) & 0x7f);
+
+ return remainder(x,y);
+}
+libm_hidden_def(remquo)