|explain_ferror_or_die(3)||Library Functions Manual||explain_ferror_or_die(3)|
NAME¶explain_ferror_or_die - check stream status and report errors
void explain_ferror_or_die(FILE *fp);
DESCRIPTION¶The explain_ferror_or_die function is used to call the ferror(3) system call. On failure an explanation will be printed to stderr, obtained from explain_ferror(3), and then the process terminates by calling exit(EXIT_FAILURE).
This function is intended to be used in a fashion similar to the following example:
It is essential that this function cal be placed as close as possible to the I/O code that has caused the problem, otherwise intervening code could have altered the errno global variable.
- The fp, exactly as to be passed to the ferror(3) system call.
- This function only returns on success. On failure, prints an explanation and exits.
COPYRIGHT¶libexplain version 1.4
Copyright (C) 2008 Peter Miller