1explain_setbuf_or_die(3)   Library Functions Manual   explain_setbuf_or_die(3)
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NAME

6       explain_setbuf_or_die - set stream buffer and report errors
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SYNOPSIS

9       #include <libexplain/setbuf.h>
10       void explain_setbuf_or_die(FILE *fp, char *data);
11       void explain_setbuf_on_error(FILE *fp, char *data);
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DESCRIPTION

14       The explain_setbuf_or_die function is used to call the setbuf(3) system
15       call. On failure an explanation will be  printed  to  stderr,  obtained
16       from the explain_setbuf(3) function, and then the process terminates by
17       calling exit(EXIT_FAILURE).
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19       The explain_setbuf_on_error function is used to call the setbuf(3) sys‐
20       tem call. On failure an explanation will be printed to stderr, obtained
21       from the explain_setbuf(3) function, but still returns to the caller.
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23       fp      The fp, exactly as to be passed to the setbuf(3) system call.
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25       data    The data, exactly as to be passed to the setbuf(3) system call.
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RETURN VALUE

28       The explain_setbuf_or_die function only returns on  success,  see  set‐
29       buf(3)  for  more  information.  On  failure, prints an explanation and
30       exits, it does not return.
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32       The explain_setbuf_on_error function always returns the value return by
33       the wrapped setbuf(3) system call.
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EXAMPLE

36       The  explain_setbuf_or_die function is intended to be used in a fashion
37       similar to the following example:
38              explain_setbuf_or_die(fp, data);
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SEE ALSO

41       setbuf(3)
42               set stream buffer
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44       explain_setbuf(3)
45               explain setbuf(3) errors
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47       exit(2) terminate the calling process
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50       libexplain version 0.40
51       Copyright (C) 2010 Peter Miller
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55                                                      explain_setbuf_or_die(3)
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