●About
●About LibrePlanet
●Mission Statement
●Founding documents
●Support this Community
●Code of Conduct
●Anti-harassment policy
●Teams
●Activists
●Wiki Helpers
●LibrePlanet Artists
●FSF Community Team
●Local & Student Teams
●Conferences
●LibrePlanet Conference
●Non-official
●Get involved
●Participate
●Discussion channels
●Events
●Login
The function perror prints an error message to the stream stderr. The orientation of stderr is not changed.
If you call perror with a message that is either a null pointer or an empty string, perror just prints the error message corresponding to errno, adding a trailing newline.
If you supply a non-null message argument, then perror prefixes its output with this string. It adds a colon and a space character to seperate the message from the error string correspond to errno.
<source lang="c">void perror (const char *message)</source>
| Header | stdio.h |
|---|
The Free Software Foundation (FSF) is a nonprofit with a worldwide mission to promote computer user freedom.
We defend the rights of all software users. (Read more)