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

6       explain_getw_or_die - input a word (int) and report errors
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SYNOPSIS

9       #include <libexplain/getw.h>
10       int explain_getw_or_die(FILE *fp);
11       int explain_getw_on_error(FILE *fp);
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DESCRIPTION

14       The  explain_getw_or_die  function  is  used to call the getw(3) system
15       call. On failure an explanation will be  printed  to  stderr,  obtained
16       from  the  explain_getw(3) function, and then the process terminates by
17       calling exit(EXIT_FAILURE).
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19       The explain_getw_on_error function is used to call the  getw(3)  system
20       call.  On  failure  an  explanation will be printed to stderr, obtained
21       from the explain_getw(3) function, but still returns to the caller.
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23       fp      The fp, exactly as to be passed to the getw(3) system call.
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RETURN VALUE

26       The explain_getw_or_die function only returns on success,  see  getw(3)
27       for  more  information. On failure, prints an explanation and exits, it
28       does not return.
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30       The explain_getw_on_error function always returns the value  return  by
31       the wrapped getw(3) system call.
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EXAMPLE

34       The  explain_getw_or_die  function  is intended to be used in a fashion
35       similar to the following example:
36              int result = explain_getw_or_die(fp);
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SEE ALSO

39       getw(3) input a word (int)
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41       explain_getw(3)
42               explain getw(3) errors
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44       exit(2) terminate the calling process
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47       libexplain version 1.4
48       Copyright (C) 2010 Peter Miller
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52                                                        explain_getw_or_die(3)
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