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Internet Message Format | 1996-08-05 | 1.1 KB

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From: Larry Weiss <[e-mail]>
Newsgroups: comp.lang.c
Subject: Re: Learning C.
Date: Fri, 09 Feb 1996 12:33:30 -0600
Organization: OpenConnect Systems, Dallas, TX, USA
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Guy Schlosser wrote:

 > How do you incorporate DOS commands such as cd\, dir, or format into
 > a C program or is there a more portable way to do these types of tasks?

 > How do you generate random numbers in C?

A standard C language function named rand() is available for pseudo-random
number generation.  A companion function srand() exists for seeding the
process.

A standard C language function named system() is available for requesting
operating services like  format or dir.  You'll need the documentation for
a particular implementation of C to learn the details of how to specify
the command string.   Usually it's straightforward, for example:

     system("dir");