move math out of runtime.
a step toward enforcing package boundaries,
necessary to eliminate global package name space.
R=r
DELTA=581 (310 added, 271 deleted, 0 changed)
OCL=35805
CL=35823
diff --git a/src/pkg/math/unsafe.go b/src/pkg/math/unsafe.go
new file mode 100644
index 0000000..cfc6463
--- /dev/null
+++ b/src/pkg/math/unsafe.go
@@ -0,0 +1,30 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package math
+
+import "unsafe"
+
+// Float32bits returns the IEEE 754 binary representation of f.
+func Float32bits(f float32) uint32 {
+ return *(*uint32)(unsafe.Pointer(&f));
+}
+
+// Float32frombits returns the floating point number corresponding
+// to the IEEE 754 binary representation b.
+func Float32frombits(b uint32) float32 {
+ return *(*float32)(unsafe.Pointer(&b));
+}
+
+// Float64bits returns the IEEE 754 binary representation of f.
+func Float64bits(f float64) uint64 {
+ return *(*uint64)(unsafe.Pointer(&f));
+}
+
+// Float64frombits returns the floating point number corresponding
+// the IEEE 754 binary representation b.
+func Float64frombits(b uint64) float64 {
+ return *(*float64)(unsafe.Pointer(&b));
+}
+
