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Function Descriptions

Introduction

Descriptions of the functions listed in Function Categories are provided in this chapter. Each description includes a synopsis, description, discussions of return values and portability issues, and an example. Also, errors, cautions, diagnostics, implementation details, and usage notes are included, if appropriate. Unless stated otherwise, any Standard function is also defined by traditional UNIX C compilers. See Introduction to the SAS/C Library for a more complete description of this book's definition of UNIX.


Portability

This book uses the following terms to indicate the portability of functions:

ISO/ANSI Conforming

These functions conform to the ISO and ANSI C Language standards.

POSIX.1 Conforming

These functions conform the the POSIX.1 standard.

UNIX Compatible

These functions are commonly found in traditional UNIX C libraries.

SAS/C Extensions

These functions are not portable.


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