Solved: Question about qrand()
I make a test of qrand() in my application. I want to make a random integer from 1 to 5. The instruction is:
qDebug << "ID random: " << qrand() % 5;
but after tested many times the result always 1. Is there any suggestion? I need your help.
Thanks in advance.
Do you only call it ones after program startup?
Then it's the same as the default srand() function in C. It will always hold the same value when not initialised with a value. So you could use the msec time expired since program stated to set the initialised value. That should give you a more random value.
Thank for reply. Yes, I only call once in the beginning of Start button action. I hope can catch a random value for the next processing. Still confusing...:)
Finally it works, I used srand() in Qt qsrand() and using the code:
ID=qrand() % 6;
qDebug << “ID random: “ << ID;
Thanks for the idea srand().