C++ In a Nutshell

Name

perror function — Writes an error message

Synopsis

void perror(const char* s)

The perror function writes an error message to stderr. If s is not null and is not an empty string, it is printed first, followed by a colon and a space. The error message is printed next and is the same text as that returned by strerror, passing errno as its argument.

See Also

errno in <cerrno> , strerror in <cstring>