package aes

import (
	"testing"
)

// See const.go for overview of math here.

// Test that powx is initialized correctly.
// (Can adapt this code to generate it too.)
func TestPowx(t *testing.T) {
	p := 1
	for i := 0; i < len(powx); i++ {
		if powx[i] != byte(p) {
			t.Errorf("powx[%d] = %#x, want %#x", i, powx[i], p)
		}
		p <<= 1
		if p&0x100 != 0 {
			p ^= poly
		}
	}
}

// Their rcon[i] is our powx[i-1] << 24.
func expandKeyGo(key []byte, enc, dec []uint32) {
	// Encryption key setup.
	var i int
	nk := len(key) / 4
	for i = 0; i < nk; i++ {
		enc[i] = byteorder.BeUint32(key[4*i:])
	}
	for ; i < len(enc); i++ {
		t := enc[i-1]
		if i%nk == 0 {
			t = subw(rotw(t)) ^ (uint32(powx[i/nk-1]) << 24)
		} else if nk > 6 && i%nk == 4 {
			t = subw(t)

//    IEEE      -10,+10     30000       9.4e-15     1.5e-15

// Pow returns x**y, the base-x exponential of y.
// For generalized compatibility with [math.Pow]:
//
//	Pow(0, ±0) returns 1+0i
//	Pow(0, c) for real(c)<0 returns Inf+0i if imag(c) is zero, otherwise Inf+Inf i.
func Pow(x, y complex128) complex128 {
	if x == 0 { // Guaranteed also true for x == -0.
		if IsNaN(y) {
			return NaN()

        .roundUnnecessaryShouldThrow()
        .test();
  }

  public void testRoundToDouble_negativeTwoToThe54MinusOne() {
    new RoundToDoubleTester(BigDecimal.valueOf((-1L << 54) - 1))
        .setExpectation(-Math.pow(2, 54), DOWN, CEILING, HALF_DOWN, HALF_UP, HALF_EVEN)
        .setExpectation(DoubleUtils.nextDown(-Math.pow(2, 54)), FLOOR, UP)

	hash := uint32(0)
	for i := 0; i < len(sep); i++ {
		hash = hash*PrimeRK + uint32(sep[i])
	}
	var pow, sq uint32 = 1, PrimeRK
	for i := len(sep); i > 0; i >>= 1 {
		if i&1 != 0 {
			pow *= sq
		}
		sq *= sq
	}
	return hash, pow
}

// HashStrRev returns the hash of the reverse of sep and the
// appropriate multiplicative factor for use in Rabin-Karp algorithm.

      BigInteger x2 = x.pow(2);
      // x^2 < 10^(2 * result + 1), or else we would have rounded up
      assertTrue(TEN.pow(2 * result + 1).compareTo(x2) > 0);
      // x^2 >= 10^(2 * result - 1), or else we would have rounded down
      assertTrue(result == 0 || TEN.pow(2 * result - 1).compareTo(x2) <= 0);
    }
  }

  @GwtIncompatible // TODO
  public void testLog10HalfDown() {

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package issue8756

/*
#cgo !darwin LDFLAGS: -lm
#include <math.h>
*/
import "C"

func Pow() {
	C.pow(1, 2)

      if (d >= 1.0) {
        assertTrue(log2 >= 0);
        assertTrue(StrictMath.pow(2.0, log2) <= d);
        assertTrue(StrictMath.pow(2.0, log2 + 1) > d);
      } else {
        assertTrue(log2 <= 0);
        assertTrue(StrictMath.pow(2.0, log2) >= d);
        assertTrue(StrictMath.pow(2.0, log2 - 1) < d);
      }
    }
  }

      }
    }
  }

  @GwtIncompatible // 2147483646^2 expected=4
  public void testPow() {
    for (int i : ALL_INTEGER_CANDIDATES) {
      for (int pow : EXPONENTS) {
        assertEquals(i + "^" + pow, BigInteger.valueOf(i).pow(pow).intValue(), IntMath.pow(i, pow));
      }
    }
  }

  @AndroidIncompatible // slow
  public void testDivNonZero() {
    for (int p : NONZERO_INTEGER_CANDIDATES) {

		}
		if want, got := int8(i)%int8(pow2[2]) == 0, divisible_int8_2to2(int8(i)); got != want {
			t.Errorf("divisible_int8_2to2(%d) = %v want %v", i, got, want)
		}
		if want, got := int8(i)%int8(pow2[3]) == 0, divisible_int8_2to3(int8(i)); got != want {
			t.Errorf("divisible_int8_2to3(%d) = %v want %v", i, got, want)
		}
		if want, got := int8(i)%int8(pow2[4]) == 0, divisible_int8_2to4(int8(i)); got != want {