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| author | Ian Lance Taylor <iant@golang.org> | 2021-07-30 14:28:58 -0700 |
|---|---|---|
| committer | Ian Lance Taylor <iant@golang.org> | 2021-08-12 20:23:07 -0700 |
| commit | c5b21c3f4c17b0649155035d2f9aa97b2da8a813 (patch) | |
| tree | c6d3a68b503ba5b16182acbb958e3e5dbc95a43b /libgo/go/math/const.go | |
| parent | 72be20e20299ec57b4bc9ba03d5b7d6bf10e97cc (diff) | |
| download | gcc-c5b21c3f4c17b0649155035d2f9aa97b2da8a813.zip gcc-c5b21c3f4c17b0649155035d2f9aa97b2da8a813.tar.gz gcc-c5b21c3f4c17b0649155035d2f9aa97b2da8a813.tar.bz2 | |
libgo: update to Go1.17rc2
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/341629
Diffstat (limited to 'libgo/go/math/const.go')
| -rw-r--r-- | libgo/go/math/const.go | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/libgo/go/math/const.go b/libgo/go/math/const.go index 0fc8715..5ea935f 100644 --- a/libgo/go/math/const.go +++ b/libgo/go/math/const.go @@ -28,15 +28,19 @@ const ( // Max is the largest finite value representable by the type. // SmallestNonzero is the smallest positive, non-zero value representable by the type. const ( - MaxFloat32 = 3.40282346638528859811704183484516925440e+38 // 2**127 * (2**24 - 1) / 2**23 - SmallestNonzeroFloat32 = 1.401298464324817070923729583289916131280e-45 // 1 / 2**(127 - 1 + 23) + MaxFloat32 = 0x1p127 * (1 + (1 - 0x1p-23)) // 3.40282346638528859811704183484516925440e+38 + SmallestNonzeroFloat32 = 0x1p-126 * 0x1p-23 // 1.401298464324817070923729583289916131280e-45 - MaxFloat64 = 1.797693134862315708145274237317043567981e+308 // 2**1023 * (2**53 - 1) / 2**52 - SmallestNonzeroFloat64 = 4.940656458412465441765687928682213723651e-324 // 1 / 2**(1023 - 1 + 52) + MaxFloat64 = 0x1p1023 * (1 + (1 - 0x1p-52)) // 1.79769313486231570814527423731704356798070e+308 + SmallestNonzeroFloat64 = 0x1p-1022 * 0x1p-52 // 4.9406564584124654417656879286822137236505980e-324 ) // Integer limit values. const ( + intSize = 32 << (^uint(0) >> 63) // 32 or 64 + + MaxInt = 1<<(intSize-1) - 1 + MinInt = -1 << (intSize - 1) MaxInt8 = 1<<7 - 1 MinInt8 = -1 << 7 MaxInt16 = 1<<15 - 1 @@ -45,6 +49,7 @@ const ( MinInt32 = -1 << 31 MaxInt64 = 1<<63 - 1 MinInt64 = -1 << 63 + MaxUint = 1<<intSize - 1 MaxUint8 = 1<<8 - 1 MaxUint16 = 1<<16 - 1 MaxUint32 = 1<<32 - 1 |