*vp = cx->runtime->NaNValue;
return JS_TRUE;
}
/* pow(x, +-0) is always 1, even for x = NaN. */
if (y == 0) {
*vp = JSVAL_ONE;
return JS_TRUE;
}
z = pow(x, y);
return js_NewNumberInRootedValue(cx, z, vp);
}
static const int64 RNG_MULTIPLIER = 0x5DEECE66DLL;
static const int64 RNG_ADDEND = 0xBLL;
static const int64 RNG_MASK = (1LL << 48) - 1;
static const jsdouble RNG_DSCALE = jsdouble(1LL << 53);
/*
* Math.random() support, lifted from java.util.Random.java.
*/
static inline void
random_setSeed(JSContext *cx, int64 seed)
{
cx->rngSeed = (seed ^ RNG_MULTIPLIER) & RNG_MASK;
}
void
js_InitRandom(JSContext *cx)
{
/*
* Set the seed from current time. Since we have a RNG per context and we often bring
static inline jsdouble
random_nextDouble(JSContext *cx)
{
return jsdouble((random_next(cx, 26) << 27) + random_next(cx, 27)) / RNG_DSCALE;
}
static inline jsdouble
random_nextDouble(JSThreadData *data)
{
return jsdouble((random_next(data, 26) << 27) + random_next(data, 27)) / RNG_DSCALE;
}
