C Language: perror function
(Print Error Message)
In the C Programming Language, the perror function write an error message to the stderr stream in the following format:
string: error-message
Syntax
The syntax for the perror function in the C Language is:
void perror(const char *s);
Parameters or Arguments
- s
- The string portion of the error message written to stderr.
Note
- The error-message portion of the error message written to stderr is equivalent to the value returned by the strerror function with the call strerror(errno).
Returns
The perror function returns a nonzero value if the error indicator is set. Otherwise, it returns zero.
Required Header
In the C Language, the required header for the perror function is:
#include <stdio.h>
Applies To
In the C Language, the perror function can be used in the following versions:
- ANSI/ISO 9899-1990
Similar Functions
Other C functions that are similar to the perror function:
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