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authorPixel <pixel@nobis-crew.org>2011-02-05 11:06:07 -0800
committerPixel <pixel@nobis-crew.org>2011-02-05 11:06:07 -0800
commit8b1fadd6a89f12cbc81c5d621a75b91dd9eedec2 (patch)
tree0b130b02101391e206c07cb0a1c9031bb4d27f21 /libm/src/s_copysign.c
parent4830af498e2d3a5440e65c63a3595b91f1cd4ac9 (diff)
Adding Sun's fdlibm, and libnix's scanf, tweaked to become an xscanf. Adding a few more libc inlined also.
Diffstat (limited to 'libm/src/s_copysign.c')
-rw-r--r--libm/src/s_copysign.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/libm/src/s_copysign.c b/libm/src/s_copysign.c
new file mode 100644
index 0000000..21eec34
--- /dev/null
+++ b/libm/src/s_copysign.c
@@ -0,0 +1,31 @@
+
+/* @(#)s_copysign.c 1.3 95/01/18 */
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunSoft, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+/*
+ * copysign(double x, double y)
+ * copysign(x,y) returns a value with the magnitude of x and
+ * with the sign bit of y.
+ */
+
+#include "fdlibm.h"
+
+#ifdef __STDC__
+ double copysign(double x, double y)
+#else
+ double copysign(x,y)
+ double x,y;
+#endif
+{
+ __HI(x) = (__HI(x)&0x7fffffff)|(__HI(y)&0x80000000);
+ return x;
+}