Summary

The C preprocessor and the C library are two important adjuncts to the C language. The C preprocessor, following preprocessor directives, adjusts your source code before it is compiled. The C library provides many functions designed to help with tasks such as input, output, file handling, memory management, sorting and searching, mathematical calculations, and string processing, to name a few. Reference Section V lists the complete ANSI C library.

Get C Primer Plus, Fourth Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.