tape: Add float functions to the encoder

tape/encode.go

@@ -1,6 +1,7 @@
 package tape
 
 import "io"
+import "math"
 
 // Encodable is any type that can write itself to an encoder.
 type Encodable interface {
@@ -118,3 +119,13 @@ func (this *Encoder) EncodeGBEU(value uint64) (n int, err error) {
 	
 	return this.Write(buffer[:])
 }
+
+// WriteFloat32 encodes a 32-bit floating point value to the output writer.
+func (this *Encoder) WriteFloat32(value float32) (n int, err error) {
+	return this.WriteUint32(math.Float32bits(value))
+}
+
+// WriteFloat64 encodes a 64-bit floating point value to the output writer.
+func (this *Encoder) WriteFloat64(value float64) (n int, err error) {
+	return this.WriteUint64(math.Float64bits(value))
+}