Strerror

The string-error function, strerror, is a C/C++ function which translates an error code, usually stored in the global variable errno, to a human-readable error message.

History

The strerror function is defined in IEEE Std 1003.1, also known as POSIX 1.

Reentrancy

The strerror function is not reentrant. For a reentrant version of the function, see strerror_r.

Usage

Inclusion

;C#include ;C++#include

Declaration

char* strerror(int errnum);

emantics

The function generates and reports a C-style string, containing an error message derived from the error code passed in with "errnum".

ee also

*strerror_r
*perror
*ISO/ANSI C
*ISO/ANSI C++
*POSIX
*Single UNIX Specification

References

# [http://www.opengroup.org/onlinepubs/000095399/functions/strerror.html strerror] by OpenGroup