package main

import "unsafe"

func init() {
	register("panicOnNilAndEleSizeIsZero", panicOnNilAndEleSizeIsZero)
}

func panicOnNilAndEleSizeIsZero() {
	var p *struct{}
	_ = unsafe.Slice(p, 5)

	if checkptrStraddles(ptr, uintptr(len64)) {
		throw("checkptr: unsafe.String result straddles multiple allocations")
	}
}

func panicunsafestringlen() {
	panic(errorString("unsafe.String: len out of range"))
}

func panicunsafestringnilptr() {
	panic(errorString("unsafe.String: ptr is nil and len is not zero"))
}

// Keep this code in sync with cmd/compile/internal/walk/builtin.go:walkUnsafeSlice

//
//	p = unsafe.Pointer(uintptr(p) + offset)
//
// The most common use of this pattern is to access fields in a struct
// or elements of an array:
//
//	// equivalent to f := unsafe.Pointer(&s.f)
//	f := unsafe.Pointer(uintptr(unsafe.Pointer(&s)) + unsafe.Offsetof(s.f))
//
//	// equivalent to e := unsafe.Pointer(&x[i])
//	e := unsafe.Pointer(uintptr(unsafe.Pointer(&x[0])) + i*unsafe.Sizeof(x[0]))
//

func Float32bits(f float32) uint32 { return *(*uint32)(unsafe.Pointer(&f)) }

// 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)) }

    /**
     * @param url
     * @param tc
     * @param unshared
     * @throws DcerpcException
     * @throws MalformedURLException
     */
    public DcerpcPipeHandle ( String url, CIFSContext tc, boolean unshared ) throws DcerpcException, MalformedURLException {
        super(tc, DcerpcHandle.parseBinding(url));
        this.pipe = new SmbNamedPipe(makePipeUrl(), pipeFlags, unshared, tc);

		}
	}

	if !opts.IgnoreImports {
		// Cgo translation adds imports of "unsafe", "runtime/cgo" and "syscall",
		// except for certain packages, to avoid circular dependencies.
		if p.UsesCgo() {
			addImport("unsafe", true)
		}
		if p.UsesCgo() && (!p.Standard || !cgoExclude[p.ImportPath]) && cfg.BuildContext.Compiler != "gccgo" {
			addImport("runtime/cgo", true)

package alias

import "unsafe"

// AnyOverlap reports whether x and y share memory at any (not necessarily
// corresponding) index. The memory beyond the slice length is ignored.
func AnyOverlap(x, y []byte) bool {
	return len(x) > 0 && len(y) > 0 &&
		uintptr(unsafe.Pointer(&x[0])) <= uintptr(unsafe.Pointer(&y[len(y)-1])) &&
		uintptr(unsafe.Pointer(&y[0])) <= uintptr(unsafe.Pointer(&x[len(x)-1]))
}

	// flags to be set when creating a thread; attempts to share the other
	// five but leave SYSVSEM unshared will fail with -EINVAL.
	//
	// In non-QEMU environments CLONE_SYSVSEM is inconsequential as we do not
	// use System V semaphores.

	cloneFlags = _CLONE_VM | /* share memory */
		_CLONE_FS | /* share cwd, etc */
		_CLONE_FILES | /* share fd table */
		_CLONE_SIGHAND | /* share sig handler table */

            )
        }
    }

    @Test
    fun `preserves identity of Externalizable objects`() {
        verifyRoundtripOf({
            val toShare = ExternalizableBean(42)
            toShare to toShare
        }) { (first, second) ->
            assertThat(first.value, equalTo(42))
            assertThat(first, sameInstance(second))
        }
    }

    @Test

// must share no underlying memory. When in doubt, create a new []Sample from
// scratch, which is always safe, though may be inefficient.
//
// Sample values with names not appearing in [All] will have their Value populated
// as KindBad to indicate that the name is unknown.
func Read(m []Sample) {
	runtime_readMetrics(unsafe.Pointer(&m[0]), len(m), cap(m))