Variant ArrayUtil::Range(double low, double high, int64_t step /* = 1 */) {
Array ret;
if (low > high) { // Negative steps
if (low - high < step || step <= 0) {
throw_invalid_argument("step exceeds the specified range");
return false;
}
rangeCheckAlloc((low - high) / step);
for (; low >= high; low -= step) {
ret.append((int64_t)low);
}
} else if (high > low) { // Positive steps
if (high - low < step || step <= 0) {
throw_invalid_argument("step exceeds the specified range");
return false;
}
rangeCheckAlloc((high - low) / step);
for (; low <= high; low += step) {
ret.append((int64_t)low);
}
} else {
ret.append((int64_t)low);
}
return ret;
}
Variant ArrayUtil::Range(double low, double high, double step /* = 1.0 */) {
Array ret;
double element;
int64_t i;
if (low > high) { // Negative steps
if (low - high < step || step <= 0) {
throw_invalid_argument("step exceeds the specified range");
return false;
}
rangeCheckAlloc((low - high) / step);
for (i = 0, element = low; element >= (high - DOUBLE_DRIFT_FIX);
i++, element = low - (i * step)) {
ret.append(element);
}
} else if (high > low) { // Positive steps
if (high - low < step || step <= 0) {
throw_invalid_argument("step exceeds the specified range");
return false;
}
rangeCheckAlloc((high - low) / step);
for (i = 0, element = low; element <= (high + DOUBLE_DRIFT_FIX);
i++, element = low + (i * step)) {
ret.append(element);
}
} else {
ret.append(low);
}
return ret;
}