C Standard Library Reference Guide (3) errno.h

3. errno.h

The error dock file is used as a generic error handler.

Macro:

EDOM

Erange

Variables:

Errno

3.1. EDOM

Statement:

#define Edomsome_value

Edom is a macro declared by the #define. It represents a domain error returned by the math function when an error occurs in the domain of a mathematical function.

3.2. Erange

Statement:

#define Erangesome_value

Erange is a macro declared by the #define. It represents a range error returned by the math function when the range of values in a mathematical function has been wrong.

3.3. errno

Statement:

int errno;

The variable errno the start of the program with a value of 0. If an error occurs, the variable is given the error code of the corresponding error.

Original English: http://www.acm.uiuc.edu/webmonkeys/book/c_guide/2.3.html

Original Author: Eric Huss

Chinese translator: Liu Yong poechant

Copyright: The original copy of this article is owned by Eric Huss, and the Chinese translation is poechant All rights reserved. Reprint please specify from "Liuda csdn blog": http://blog.csdn.net/poechant