C Programming/string.h/strerror
< C Programming | string.h
(Redirected from C Programming/C Reference/string.h/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
[edit | edit source]The strerror function is defined in IEEE Std 1003.1, also known as POSIX 1.
Reentrancy
[edit | edit source]The strerror function is not reentrant. For a reentrant version of the function, see strerror r.
Usage
[edit | edit source]Inclusion
[edit | edit source]#include <string.h>
Declaration
[edit | edit source]char* strerror(int errnum);
Semantics
[edit | edit source]The function generates and reports a C-style string, containing an error message derived from the error code passed in with errnum.
See also
[edit | edit source]- strerror r
- perror
References
[edit | edit source]- strerror by OpenGroup