random number generators

[frail chasm]

Please help

I dont understand what they mean by "created and seeded everytime"

[fervent tangle]

it means that everytime the function is called, the pseudo-random number generator also generates new number, so to fix it you can create a global boolean variable to mark it whether the function is already ever called or not, if it is, then don't run the generator again, otherwise run

bool called = False;
int getCard()
{
      if (!called)
      {
           called = true;
           std::mt19937 mt{std::random_device{}() };
           std::uniform_int_distribution card{ 1, 52 };
            return card(mt);
      }
}

[frail chasm]

Which one is the seeding part ?@fervent tangle

[fervent tangle]

random_device
just like the description in the image you sent

[frail chasm]

So random device gets created and seeded?@fervent tangle

[fervent tangle]

yes

[frail chasm]

What does being seeded mean jn dummy terms?@fervent tangle

[fervent tangle]

seed means a list of number the generator can generate, and we usually assign a number to the generator to tell it what seed number we want
for example seed 1 is 1-10
seed 2 is 11-20
and so on
we seed also cuz for the list of numbers generated will be the same, without a seed number, the list of number generated will be random

[frail chasm]

Which one is the generator here?@fervent tangle

[fervent tangle]

uniform_int_distribution

[frail chasm]

Only tht thing represents generator?@fervent tangle

[fervent tangle]

yes

[frail chasm]

So herein this image whats the seed number??@fervent tangle

[fervent tangle]

idk

[grizzled badger]

There is no seed in that image, it is set somewhere in the random_device() function probably

[frail chasm]

But they say this get seeded everytine the function is called @grizzled badger

[grizzled badger]

yes that is true

thats why you dont want to call it multiple time

[grizzled badger]

thats is not really true

a seed is not a list of numbers the computer can generatr

a seed is like a base number used to generate numbers
it can be any numbers like 474994947389474

usually people use something like thr current time of the system, since it changes all the time its a good way to ensure your generates numbers will not be the same

[frail chasm]

Man I'm tryns know what seed is i still don't have an idea ,what is it?@grizzled badger

[grizzled badger]

any number used as a base to generate other numbers

[frail chasm]

Base like? Exponents?

[grizzled badger]

have you ever play minecraft? its the same thing, each world is based on a seed

[frail chasm]

No I haven't

[frail chasm]

@grizzled badger can you please show example