constants for floating point limits

R=rsc
DELTA=5  (5 added, 0 deleted, 0 changed)
OCL=32283
CL=32287

diff --git a/src/pkg/math/const.go b/src/pkg/math/const.go
index 259660fea6945dc370cacf2eea393250b8c5b7f9..f1598df9f5e55c0c90e06c66237053e15bf2fefc 100644 (file)
--- a/src/pkg/math/const.go
+++ b/src/pkg/math/const.go
@@ -21,6 +21,11 @@ const (
        Log2E   = 1/Ln2;
        Ln10    = 2.30258509299404568401799145468436420760110148862877297603332790;  // A002392
        Log10E  = 1/Ln10;
+
+       MaxFloat32      = 3.40282346638528860e+38;
+       MinFloat32      = 1.40129846432481707e-45;
+       MaxFloat64      = 1.7976931348623157e+308;
+       MinFloat64      = 5.0e-324;
 )
 
 // BUG(rsc): The manual should define the special cases for all of these functions.