int xbt_uniform_int(int min, int max)
{
- unsigned long gmin = mt19937_gen.min();
- unsigned long gmax = mt19937_gen.max();
- unsigned long grange = gmax - gmin + 1;
unsigned long range = max - min + 1;
+ xbt_assert(range > 0, "Overflow in the uniform integer distribution, please use a smaller range.");
xbt_assert(
min <= max,
"The maximum value for the uniform integer distribution must be greater than or equal to the minimum value");
- xbt_assert(range <= grange, "The current implementation of the uniform integer distribution does not allow range to "
- "be higher than mt19937's range");
- unsigned long mult = grange / range;
- unsigned long maxallowed = gmin + (mult + 1) * range - 1;
- while (true) {
- unsigned long value = mt19937_gen();
- if (value > maxallowed) {
- } else {
- return value % range + min;
- }
- }
+ return min + (int)(range * xbt_uniform_real(0, 1));
}
double uniform_real(double min, double max)
