move math routines from package sys to package math,

though they still build in src/runtime.

use cgo instead of hand-written wrappers.

R=r
DELTA=740  (289 added, 300 deleted, 151 changed)
OCL=23326
CL=23331

1 files changed, 3 insertions, 2 deletions

diff --git a/src/lib/strconv/atof.go b/src/lib/strconv/atof.go
index e562bfdb3..358594416 100644
--- a/src/lib/strconv/atof.go
+++ b/src/lib/strconv/atof.go
@@ -11,6 +11,7 @@
 package strconv
 
 import (
+	"math";
 	"os";
 	"strconv";
 )
@@ -329,7 +330,7 @@ func Atof64(s string) (f float64, err *os.Error) {
 		}
 	}
 	b, ovf := decimalToFloatBits(neg, d, trunc, &float64info);
-	f = sys.Float64frombits(b);
+	f = math.Float64frombits(b);
 	if ovf {
 		err = os.ERANGE;
 	}
@@ -347,7 +348,7 @@ func Atof32(s string) (f float32, err *os.Error) {
 		}
 	}
 	b, ovf := decimalToFloatBits(neg, d, trunc, &float32info);
-	f = sys.Float32frombits(uint32(b));
+	f = math.Float32frombits(uint32(b));
 	if ovf {
 		err = os.ERANGE;
 	}