Thread: Generating Random characters/numbers

Check the FAQ.

Generally, you can use rand() to generate random numbers. You can then use modulo and addition to make it the range you want.

Generically:

Code:

int x = rand() % (1 + max - min) + min;

Of course for digits, this can be simplified:

Code:

char ch = rand() % 10 + '0';

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Mats

Originally Posted by milanbarosh

thanks guys i got some info on the numbers.

Any ideas for characters?

You should be able to use my generic code, and just substitute as needed with the constants that apply to the character set you want to use (presumably 'a'-'z' or 'A'-'Z', but by no means guaranteed).

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Mats

For a guarenteed character range, you could create use a string with an acceptable alphabet, and then use the random number as an index.