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<?php

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if (class_exists('ParagonIE_Sodium_Core32_Curve25519_Fe', false)) {

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return;

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}

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/**

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* Class ParagonIE_Sodium_Core32_Curve25519_Fe

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* This represents a Field Element

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class ParagonIE_Sodium_Core32_Curve25519_Fe implements ArrayAccess

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{

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/**

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* @var array<int, ParagonIE_Sodium_Core32_Int32>

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protected $container = array();

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/**

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* @var int

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protected $size = 10;

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/**

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* @internal You should not use this directly from another application

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* @param array<int, ParagonIE_Sodium_Core32_Int32> $array

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* @param bool $save_indexes

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* @return self

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* @throws SodiumException

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* @throws TypeError

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public static function fromArray($array, $save_indexes = null)

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{

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$count = count($array);

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if ($save_indexes) {

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$keys = array_keys($array);

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} else {

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$keys = range(0, $count - 1);

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}

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$array = array_values($array);

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$obj = new ParagonIE_Sodium_Core32_Curve25519_Fe();

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if ($save_indexes) {

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for ($i = 0; $i < $count; ++$i) {

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$array[$i]->overflow = 0;

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$obj->offsetSet($keys[$i], $array[$i]);

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}

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} else {

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for ($i = 0; $i < $count; ++$i) {

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if (!($array[$i] instanceof ParagonIE_Sodium_Core32_Int32)) {

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throw new TypeError('Expected ParagonIE_Sodium_Core32_Int32');

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}

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$array[$i]->overflow = 0;

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$obj->offsetSet($i, $array[$i]);

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}

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}

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return $obj;

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}

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/**

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* @internal You should not use this directly from another application

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* @param array<int, int> $array

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* @param bool $save_indexes

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* @return self

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* @throws SodiumException

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* @throws TypeError

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public static function fromIntArray($array, $save_indexes = null)

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{

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$count = count($array);

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if ($save_indexes) {

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$keys = array_keys($array);

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} else {

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$keys = range(0, $count - 1);

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}

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$array = array_values($array);

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$set = array();

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/** @var int $i */

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/** @var int $v */

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foreach ($array as $i => $v) {

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$set[$i] = ParagonIE_Sodium_Core32_Int32::fromInt($v);

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}

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$obj = new ParagonIE_Sodium_Core32_Curve25519_Fe();

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if ($save_indexes) {

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for ($i = 0; $i < $count; ++$i) {

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$set[$i]->overflow = 0;

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$obj->offsetSet($keys[$i], $set[$i]);

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}

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} else {

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for ($i = 0; $i < $count; ++$i) {

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$set[$i]->overflow = 0;

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$obj->offsetSet($i, $set[$i]);

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}

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}

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return $obj;

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}

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/**

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* @internal You should not use this directly from another application

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* @param mixed $offset

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* @param mixed $value

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* @return void

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* @throws SodiumException

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* @throws TypeError

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#[ReturnTypeWillChange]

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public function offsetSet($offset, $value)

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{

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if (!($value instanceof ParagonIE_Sodium_Core32_Int32)) {

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throw new InvalidArgumentException('Expected an instance of ParagonIE_Sodium_Core32_Int32');

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}

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if (is_null($offset)) {

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$this->container[] = $value;

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} else {

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ParagonIE_Sodium_Core32_Util::declareScalarType($offset, 'int', 1);

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$this->container[(int) $offset] = $value;

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}

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}

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/**

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* @internal You should not use this directly from another application

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* @param mixed $offset

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* @return bool

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* @psalm-suppress MixedArrayOffset

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#[ReturnTypeWillChange]

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public function offsetExists($offset)

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{

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return isset($this->container[$offset]);

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}

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/**

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* @internal You should not use this directly from another application

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* @param mixed $offset

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* @return void

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* @psalm-suppress MixedArrayOffset

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#[ReturnTypeWillChange]

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public function offsetUnset($offset)

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{

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unset($this->container[$offset]);

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}

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/**

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* @internal You should not use this directly from another application

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* @param mixed $offset

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* @return ParagonIE_Sodium_Core32_Int32

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* @psalm-suppress MixedArrayOffset

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#[ReturnTypeWillChange]

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public function offsetGet($offset)

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{

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if (!isset($this->container[$offset])) {

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$this->container[(int) $offset] = new ParagonIE_Sodium_Core32_Int32();

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}

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/** @var ParagonIE_Sodium_Core32_Int32 $get */

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$get = $this->container[$offset];

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return $get;

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}

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/**

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* @internal You should not use this directly from another application

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* @return array

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public function __debugInfo()

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{

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if (empty($this->container)) {

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return array();

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}

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$c = array(

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(int) ($this->container[0]->toInt()),

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(int) ($this->container[1]->toInt()),

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(int) ($this->container[2]->toInt()),

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(int) ($this->container[3]->toInt()),

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(int) ($this->container[4]->toInt()),

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(int) ($this->container[5]->toInt()),

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(int) ($this->container[6]->toInt()),

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(int) ($this->container[7]->toInt()),

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(int) ($this->container[8]->toInt()),

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(int) ($this->container[9]->toInt())

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);

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return array(implode(', ', $c));

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}

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}

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