From 4f4a855d82a889cebcfca150a7a43909bcb6a346 Mon Sep 17 00:00:00 2001 From: Ian Lance Taylor Date: Fri, 18 Jan 2019 19:04:36 +0000 Subject: libgo: update to Go1.12beta2 Reviewed-on: https://go-review.googlesource.com/c/158019 gotools/: * Makefile.am (go_cmd_vet_files): Update for Go1.12beta2 release. (GOTOOLS_TEST_TIMEOUT): Increase to 600. (check-runtime): Export LD_LIBRARY_PATH before computing GOARCH and GOOS. (check-vet): Copy golang.org/x/tools into check-vet-dir. * Makefile.in: Regenerate. gcc/testsuite/: * go.go-torture/execute/names-1.go: Stop using debug/xcoff, which is no longer externally visible. From-SVN: r268084 --- libgo/go/math/unsafe.go | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) (limited to 'libgo/go/math/unsafe.go') diff --git a/libgo/go/math/unsafe.go b/libgo/go/math/unsafe.go index 5ae6742..e59f50c 100644 --- a/libgo/go/math/unsafe.go +++ b/libgo/go/math/unsafe.go @@ -6,16 +6,24 @@ package math import "unsafe" -// Float32bits returns the IEEE 754 binary representation of f. +// Float32bits returns the IEEE 754 binary representation of f, +// with the sign bit of f and the result in the same bit position. +// Float32bits(Float32frombits(x)) == x. func Float32bits(f float32) uint32 { return *(*uint32)(unsafe.Pointer(&f)) } -// Float32frombits returns the floating point number corresponding -// to the IEEE 754 binary representation b. +// Float32frombits returns the floating-point number corresponding +// to the IEEE 754 binary representation b, with the sign bit of b +// and the result in the same bit position. +// Float32frombits(Float32bits(x)) == x. func Float32frombits(b uint32) float32 { return *(*float32)(unsafe.Pointer(&b)) } -// Float64bits returns the IEEE 754 binary representation of f. +// Float64bits returns the IEEE 754 binary representation of f, +// with the sign bit of f and the result in the same bit position, +// and Float64bits(Float64frombits(x)) == x. func Float64bits(f float64) uint64 { return *(*uint64)(unsafe.Pointer(&f)) } -// Float64frombits returns the floating point number corresponding -// the IEEE 754 binary representation b. +// Float64frombits returns the floating-point number corresponding +// to the IEEE 754 binary representation b, with the sign bit of b +// and the result in the same bit position. +// Float64frombits(Float64bits(x)) == x. func Float64frombits(b uint64) float64 { return *(*float64)(unsafe.Pointer(&b)) } -- cgit v1.1