I'm getting then same rnd-nmbr;s every time "in C"...why ?

Unknown

Hello.

Can "you" tell me why the same numbers occur every time.

I whant different , each time.

Thanks in advance.

#include

.

.

.

random();

for ( t = 0; t < 10; t++){

rnd_s[t] = rand() % 10;

}

Unknown

: Hello.

: Can "you" tell me why the same numbers occur every time.

: I whant different , each time.

: Thanks in advance.

: #include

: .

: .

: .

: random();

: for ( t = 0; t < 10; t++){

: rnd_s[t] = rand() % 10;

: }

You have to initialize the random number generator. Use the function randomize.

Unknown

Hello. DAIMON.

I've initilized , but still gets

the same numbers every time.

I have a djgpp compiler.

I've tried but i dont know what I'm doing wrong.

Do you know..??

Greatings

John.

Unknown

: Hello. DAIMON.

: I've initilized , but still gets

: the same numbers every time.

: I have a djgpp compiler.

: I've tried but i dont know what I'm doing wrong.

: Do you know..??

: Greatings

: John.

If you want to have different numbers every time you run the program, you have to seed the random number generator different every time. The easiest way to do this is to seed with current time.

unsigned int seed;

// ...... put current time in seed here.

srand(seed);

Unknown

The following code works on most compliers and can be used to form the basis of your code.

// seed the sequence first ...

time_t now = time(NULL);

srand((unsigned long)now);

// use rand() to get some numbers ...

Please note - you will have to re-seed the sequence if you start a new thread and want to

use rand() in the new thread.

Hope this helps

Derek