NAME

comerrno() - prints error message, given error code, and exits

SYNOPSIS

comerrno(error,format,args);
int error;
char *format;

DESCRIPTION

comerrno() is like comerr(), except that the caller supplies the error number. Positive numbers are turned into system error messages. Negative numbers cause the system error portion of the output to be omitted. comerrno() is a convenient way to print the name of the program, and an error message, and exit the process in a single call.

RETURNS

none
Rather than return, comerrno() exits the current process with a value equal to the error number supplied by the user.

EXAMPLES

if (argc < 2)
	comerrno(-1, "Usage: name arg.\n");

NOTES