From c5b21c3f4c17b0649155035d2f9aa97b2da8a813 Mon Sep 17 00:00:00 2001 From: Ian Lance Taylor Date: Fri, 30 Jul 2021 14:28:58 -0700 Subject: libgo: update to Go1.17rc2 Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/341629 --- libgo/go/math/const.go | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) (limited to 'libgo/go/math/const.go') 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<