ss_string_perror(3) - Linux man page
Name
ss_string_perror - prints a library error messageSynopsis
#include <sstrings.h>Linking with -lsstrings2
void ss_string_perror(const char *msg);
Description
The routine perror produces a message on the standard error output, describing the last error encountered during a call to a system or library function. First (if msg is not NULL and *msg is not a null byte ('\0')) the argument string s is printed, followed by a colon and a blank. Then the message and a new-line.To be of most use, the argument string should include the name of the function that incurred the error. The error number is taken from the external variable ss_errno, which is set when errors occur but not cleared when non-erroneous calls are made.