func (z *Int) Lsh(x *Int, s uint) *Int {
	x.doinit()
	z.doinit()
	C._mpz_mul_2exp(&z.i[0], &x.i[0], C.ulong(s))
	return z
}

// Rsh sets z = x >> s and returns z.
func (z *Int) Rsh(x *Int, s uint) *Int {
	x.doinit()
	z.doinit()
	C._mpz_div_2exp(&z.i[0], &x.i[0], C.ulong(s))
	return z
}

// Exp sets z = x^y % m and returns z.
// If m == nil, Exp sets z = x^y.

// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package cgotest

/*
#include <windows.h>
USHORT backtrace(ULONG FramesToCapture, PVOID *BackTrace) {
#ifdef _AMD64_
	CONTEXT context;
	RtlCaptureContext(&context);
	ULONG64 ControlPc;
	ControlPc = context.Rip;
	int i;
	for (i = 0; i < FramesToCapture; i++) {