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функция не описана

ParagonIE_Sodium_Core_X25519::fe_cswap() public WP 1.0

Alters the objects passed to this method in place.

{} Это метод класса: ParagonIE_Sodium_Core_X25519{}

Хуков нет.

Возвращает

null.

Использование

$result = ParagonIE_Sodium_Core_X25519::fe_cswap(;
$f(ParagonIE_Sodium_Core_Curve25519_Fe) (обязательный)
$g(ParagonIE_Sodium_Core_Curve25519_Fe) (обязательный)
$b(число) (обязательный)

Код ParagonIE_Sodium_Core_X25519::fe_cswap() WP 5.5.1

<?php
public static function fe_cswap(
    ParagonIE_Sodium_Core_Curve25519_Fe $f,
    ParagonIE_Sodium_Core_Curve25519_Fe $g,
    $b = 0
) {
    $f0 = (int) $f[0];
    $f1 = (int) $f[1];
    $f2 = (int) $f[2];
    $f3 = (int) $f[3];
    $f4 = (int) $f[4];
    $f5 = (int) $f[5];
    $f6 = (int) $f[6];
    $f7 = (int) $f[7];
    $f8 = (int) $f[8];
    $f9 = (int) $f[9];
    $g0 = (int) $g[0];
    $g1 = (int) $g[1];
    $g2 = (int) $g[2];
    $g3 = (int) $g[3];
    $g4 = (int) $g[4];
    $g5 = (int) $g[5];
    $g6 = (int) $g[6];
    $g7 = (int) $g[7];
    $g8 = (int) $g[8];
    $g9 = (int) $g[9];
    $b = -$b;
    $x0 = ($f0 ^ $g0) & $b;
    $x1 = ($f1 ^ $g1) & $b;
    $x2 = ($f2 ^ $g2) & $b;
    $x3 = ($f3 ^ $g3) & $b;
    $x4 = ($f4 ^ $g4) & $b;
    $x5 = ($f5 ^ $g5) & $b;
    $x6 = ($f6 ^ $g6) & $b;
    $x7 = ($f7 ^ $g7) & $b;
    $x8 = ($f8 ^ $g8) & $b;
    $x9 = ($f9 ^ $g9) & $b;
    $f[0] = $f0 ^ $x0;
    $f[1] = $f1 ^ $x1;
    $f[2] = $f2 ^ $x2;
    $f[3] = $f3 ^ $x3;
    $f[4] = $f4 ^ $x4;
    $f[5] = $f5 ^ $x5;
    $f[6] = $f6 ^ $x6;
    $f[7] = $f7 ^ $x7;
    $f[8] = $f8 ^ $x8;
    $f[9] = $f9 ^ $x9;
    $g[0] = $g0 ^ $x0;
    $g[1] = $g1 ^ $x1;
    $g[2] = $g2 ^ $x2;
    $g[3] = $g3 ^ $x3;
    $g[4] = $g4 ^ $x4;
    $g[5] = $g5 ^ $x5;
    $g[6] = $g6 ^ $x6;
    $g[7] = $g7 ^ $x7;
    $g[8] = $g8 ^ $x8;
    $g[9] = $g9 ^ $x9;
}