A simple, extremely light, fast, and easy-to-use rand() C Library function wrapper that outputs to a file.

Note: When writing out as a binary file, there is no delimiter inserted. n 4-byte integers are written.

Just build using the following command:

gcc genRandom.c genRandParseOption.c genRandPrint.c -o genRandom

Usage: genRandom : use all default parameters. genRandom -h : View the directions of usage (basically the same as this.) genRandom -v : View version information.

Default parameters (run with no command arguments, or only some): random.txt as a file name. 1000 pseudorandom numbers. Uses the system time as the seed by default. Lower pseudorandom generation bound is 0. Upper pseudorandom generation bound is RAND_MAX. Seed reinitialization interval is once every 50 numbers read. Writes text to file by default. newline delimiter.

Command line options are:

-f <file name>  : Specify the output file.
-n <quantity>   : Specify how many pseudorandom numbers you want to generate.
-d <character>  : Specify a one-character delimiter to override the default newline delimiter.
-s <seed value> : Specify a seed for pseudorandom generation manually.
-r <interval>   : Specify how often the pseudorandom generator is refreshed with a new seed.
-l <low bound>  : Specify a pseudorandom generation lower bound.
-h <high bound> : Specify a pseudorandom generation upper bound.
-b <true/false> : Specify whether to write the file in binary. Use only true/false, all lower case.