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| author | Rob Pike <r@golang.org> | 2009-07-28 12:57:33 -0700 |
|---|---|---|
| committer | Rob Pike <r@golang.org> | 2009-07-28 12:57:33 -0700 |
| commit | 6d345525fc0ebefe1e1b79ed964309f461c4ec14 (patch) | |
| tree | eefb3e35e5f89f413d891198c3fedf4b9f6692de /src/pkg/math/const.go | |
| parent | f959eb1b744deae0e531818d59651e6e7f2623e9 (diff) | |
| download | golang-6d345525fc0ebefe1e1b79ed964309f461c4ec14.tar.gz | |
constants for integer limits
R=rsc
DELTA=16 (16 added, 0 deleted, 0 changed)
OCL=32288
CL=32288
Diffstat (limited to 'src/pkg/math/const.go')
| -rw-r--r-- | src/pkg/math/const.go | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/pkg/math/const.go b/src/pkg/math/const.go index f1598df9f..837fe6bc9 100644 --- a/src/pkg/math/const.go +++ b/src/pkg/math/const.go @@ -21,11 +21,27 @@ const ( Log2E = 1/Ln2; Ln10 = 2.30258509299404568401799145468436420760110148862877297603332790; // A002392 Log10E = 1/Ln10; +) +// Limit values +const ( MaxFloat32 = 3.40282346638528860e+38; MinFloat32 = 1.40129846432481707e-45; MaxFloat64 = 1.7976931348623157e+308; MinFloat64 = 5.0e-324; + + MaxInt8 = 1<<7 - 1; + MinInt8 = -1<<7; + MaxInt16 = 1<<15 - 1; + MinInt16 = -1<<15; + MaxInt32 = 1<<31 - 1; + MinInt32 = -1<<31; + MaxInt64 = 1<<63 - 1; + MinInt64 = -1<<63; + MaxUint8 = 1<<8 - 1; + MaxUint16 = 1<<16 - 1; + MaxUint32 = 1<<32 - 1; + MaxUint64 = 1<<64 - 1; ) // BUG(rsc): The manual should define the special cases for all of these functions. |