c Programming/C Reference/string.h/strerror

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Template:C Standard library 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]

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

Reentrancy[edit]

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

Usage[edit]

Inclusion[edit]

#include <string.h>

Declaration[edit]

char* strerror(int errnum);

Semantics[edit]

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]

References[edit]

  1. strerror by OpenGroup

External links[edit]