public static function ParagonIE_Sodium_Core_Curve25519::negative in Automatic Updates 8

Same name and namespace in other branches

1. 7 vendor/paragonie/sodium_compat/src/Core/Curve25519.php \ParagonIE_Sodium_Core_Curve25519::negative()

@internal You should not use this directly from another application

Parameters

int|string $char:

Return value

int (1 = yes, 0 = no)

Throws

SodiumException

TypeError

1 call to ParagonIE_Sodium_Core_Curve25519::negative()

ParagonIE_Sodium_Core_Curve25519::ge_select in vendor/paragonie/sodium_compat/src/Core/Curve25519.php

@internal You should not use this directly from another application

File

vendor/paragonie/sodium_compat/src/Core/Curve25519.php, line 1658

Class

ParagonIE_Sodium_Core_Curve25519

Class ParagonIE_Sodium_Core_Curve25519

Code

public static function negative($char) {
  if (is_int($char)) {
    return $char < 0 ? 1 : 0;
  }
  $x = self::chrToInt(self::substr($char, 0, 1));
  return (int) ($x >> 63);
}