Other Directions
In this book, we've covered the essential features of C, but we've only touched upon the library. The ANSI C library contains scores of useful functions. Most implementations also offer extensive libraries of functions specific to particular systems. DOS compilers offer functions to facilitate hardware control, keyboard input, and the generation of graphics for IBM PCs and clones. Windows-based compilers support the Windows graphic interface. Macintosh C compilers provide functions to access the Macintosh toolbox to facilitate producing programs with the standard Macintosh interface. Take the time to explore what your system has to offer. If it doesn't have what you want, make your own functions. That's part of C. If you think ...
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