explain_fputs_or_die(3) - Linux man page
Name
explain_fputs_or_die - write a string to a stream and report errors
Synopsis
#include <libexplain/fputs.h>
void explain_fputs_or_die(const char *s, FILE *fp);
int explain_fputs_on_error(const char *s, FILE *fp);
Description
The explain_fputs_or_die function is used to call the fputs(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_fputs(3) function, and then the process terminates by calling exit(EXIT_FAILURE).
The explain_fputs_on_error function is used to call the fputs(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_fputs(3) function, but still returns to the caller.
- s
The s, exactly as to be passed to the fputs(3) system call.
fp
The fp, exactly as to be passed to the fputs(3) system call.
Return Value
The explain_fputs_or_die function only returns on success, see fputs(3) for more information. On failure, prints an explanation and exits, it does not return.
The explain_fputs_on_error function always returns the value return by the wrapped fputs(3) system call.
Example
The explain_fputs_or_die function is intended to be used in a fashion similar to the following example:
-
explain_fputs_or_die(s, fp);
See Also
fputs(3)
- write a string to a stream
- explain_fputs(3)
- explain fputs(3) errors
- exit(2)
terminate the calling process
Copyright
libexplain version 0.52
Copyright © 2009 Peter Miller