C++ (Cpp) math_mt_rand Beispiele

Beispiel #1

Datei: ext_std_math.cpp Projekt: 292388900/hhvm

int64_t HHVM_FUNCTION(rand,
                      int64_t min /* = 0 */,
                      const Variant& max /* = null_variant */) {
#if defined(__APPLE__) || defined(_MSC_VER)
  if (!s_rand_is_seeded) {
#else
  if (s_state.state != RandomBuf::RequestInit) {
#endif
    randinit(math_generate_seed());
  }

  int64_t number;
#ifdef __APPLE__
  number = random();
#elif defined(_MSC_VER)
  number = rand();
#else
  int32_t numberIn;
  random_r(&s_state.data, &numberIn);
  number = numberIn;
#endif
  int64_t int_max = max.isNull() ? RAND_MAX : max.toInt64();
  if (min != 0 || int_max != RAND_MAX) {
    RAND_RANGE(number, min, int_max, RAND_MAX);
  }
  return number;
}

int64_t HHVM_FUNCTION(mt_getrandmax) { return MT_RAND_MAX;}

void HHVM_FUNCTION(mt_srand,
                   const Variant& seed /* = null_variant */) {
  if (seed.isNull()) {
    return math_mt_srand(math_generate_seed());
  }
  if (seed.isNumeric(true)) {
    math_mt_srand(seed.toInt32());
  } else {
    raise_warning("mt_srand() expects parameter 1 to be long");
  }
}

int64_t HHVM_FUNCTION(mt_rand,
                      int64_t min /* = 0 */,
                      const Variant& max /* = null_variant */) {
  return math_mt_rand(min, max.isNull() ? RAND_MAX : max.toInt64());
}

double HHVM_FUNCTION(lcg_value) { return math_combined_lcg();}

Variant HHVM_FUNCTION(intdiv, int64_t numerator, int64_t divisor) {
  if (divisor == 0) {
    SystemLib::throwDivisionByZeroErrorObject(Strings::DIVISION_BY_ZERO);
  } else if (divisor == -1 &&
             numerator == std::numeric_limits<int64_t>::min()) {
    SystemLib::throwArithmeticErrorObject(
      "Division of PHP_INT_MIN by -1 is not an integer");
  }
  return numerator/divisor;
}

///////////////////////////////////////////////////////////////////////////////

const StaticString s_PHP_ROUND_HALF_UP("PHP_ROUND_HALF_UP");
const StaticString s_PHP_ROUND_HALF_DOWN("PHP_ROUND_HALF_DOWN");
const StaticString s_PHP_ROUND_HALF_EVEN("PHP_ROUND_HALF_EVEN");
const StaticString s_PHP_ROUND_HALF_ODD("PHP_ROUND_HALF_ODD");

#define ICONST(nm)                                                             \
  Native::registerConstant<KindOfInt64>(makeStaticString(#nm), k_##nm)         \

#define DCONST(nm)                                                             \
  Native::registerConstant<KindOfDouble>(makeStaticString("M_"#nm), k_M_##nm)  \

void StandardExtension::requestInitMath() {
#if !defined(__APPLE__) && !defined(_MSC_VER)
  if (s_state.state == RandomBuf::RequestInit) {
    s_state.state = RandomBuf::ThreadInit;
  }
#endif
}

void StandardExtension::initMath() {
  ICONST(PHP_ROUND_HALF_UP);
  ICONST(PHP_ROUND_HALF_DOWN);
  ICONST(PHP_ROUND_HALF_EVEN);
  ICONST(PHP_ROUND_HALF_ODD);

  DCONST(PI);
  DCONST(1_PI);
  DCONST(2_PI);
  DCONST(2_SQRTPI);
  DCONST(E);
  DCONST(EULER);
  DCONST(LN10);
  DCONST(LN2);
  DCONST(LNPI);
  DCONST(LOG10E);
  DCONST(LOG2E);
  DCONST(PI_2);
  DCONST(PI_4);
  DCONST(SQRT1_2);
  DCONST(SQRT2);
  DCONST(SQRT3);
  DCONST(SQRTPI);

  HHVM_FE(min);
  HHVM_FE(max);
  HHVM_FE(abs);
  HHVM_FE(is_finite);
  HHVM_FE(is_infinite);
  HHVM_FE(is_nan);
  HHVM_FE(ceil);
  HHVM_FE(floor);
  HHVM_FE(round);
  HHVM_FE(deg2rad);
  HHVM_FE(rad2deg);
  HHVM_FE(decbin);
  HHVM_FE(dechex);
  HHVM_FE(decoct);
  HHVM_FE(bindec);
  HHVM_FE(hexdec);
  HHVM_FE(octdec);
  HHVM_FE(base_convert);
  HHVM_FE(pow);
  HHVM_FE(exp);
  HHVM_FE(expm1);
  HHVM_FE(log10);
  HHVM_FE(log1p);
  HHVM_FE(log);
  HHVM_FE(cos);
  HHVM_FE(cosh);
  HHVM_FE(sin);
  HHVM_FE(sinh);
  HHVM_FE(tan);
  HHVM_FE(tanh);
  HHVM_FE(acos);
  HHVM_FE(acosh);
  HHVM_FE(asin);
  HHVM_FE(asinh);
  HHVM_FE(atan);
  HHVM_FE(atanh);
  HHVM_FE(atan2);
  HHVM_FE(hypot);
  HHVM_FE(fmod);
  HHVM_FE(sqrt);
  HHVM_FE(getrandmax);
  HHVM_FE(srand);
  HHVM_FE(rand);
  HHVM_FE(mt_getrandmax);
  HHVM_FE(mt_srand);
  HHVM_FE(mt_rand);
  HHVM_FE(lcg_value);
  HHVM_FE(intdiv);

  loadSystemlib("std_math");
}

Beispiel #2

Datei: ext_math.cpp Projekt: 7755373049/hiphop-php

int64_t f_mt_rand(int64_t min /* = 0 */, int64_t max /* = RAND_MAX */) {
  return math_mt_rand(min, max);
}