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Diffstat (limited to 'src/lib/libc/fdlibm/w_sqrt.c')
-rw-r--r--src/lib/libc/fdlibm/w_sqrt.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/src/lib/libc/fdlibm/w_sqrt.c b/src/lib/libc/fdlibm/w_sqrt.c
new file mode 100644
index 0000000..4dd589e
--- /dev/null
+++ b/src/lib/libc/fdlibm/w_sqrt.c
@@ -0,0 +1,38 @@
+
+/* @(#)w_sqrt.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.
+ * ====================================================
+ */
+
+/*
+ * wrapper sqrt(x)
+ */
+
+#include "fdlibm.h"
+
+#ifdef __STDC__
+ double sqrt(double x) /* wrapper sqrt */
+#else
+ double sqrt(x) /* wrapper sqrt */
+ double x;
+#endif
+{
+#ifdef _IEEE_LIBM
+ return __ieee754_sqrt(x);
+#else
+ double z;
+ z = __ieee754_sqrt(x);
+ if(_LIB_VERSION == _IEEE_ || isnan(x)) return z;
+ if(x<0.0) {
+ return __kernel_standard(x,x,26); /* sqrt(negative) */
+ } else
+ return z;
+#endif
+}