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

6       explain_strtol_or_die  -  convert a string to a long integer and report
7       errors
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SYNOPSIS

10       #include <libexplain/strtol.h>
11       long explain_strtol_or_die(const char *nptr, char **endptr, int base);
12       long  explain_strtol_on_error(const  char  *nptr,  char  **endptr,  int
13       base))
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DESCRIPTION

16       The explain_strtol_or_die function is used to call the strtol(3) system
17       call. On failure an explanation will be  printed  to  stderr,  obtained
18       from the explain_strtol(3) function, and then the process terminates by
19       calling exit(EXIT_FAILURE).
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21       The explain_strtol_on_error function is used to call the strtol(3) sys‐
22       tem call. On failure an explanation will be printed to stderr, obtained
23       from the explain_strtol(3) function, but still returns to the caller.
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25       nptr    The nptr, exactly as to be passed to the strtol(3) system call.
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27       endptr  The endptr, exactly as to be passed  to  the  strtol(3)  system
28               call.
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30       base    The base, exactly as to be passed to the strtol(3) system call.
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RETURN VALUE

33       The  explain_strtol_or_die  function  only returns on success, see str‐
34       tol(3) for more information. On  failure,  prints  an  explanation  and
35       exits, it does not return.
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37       The explain_strtol_on_error function always returns the value return by
38       the wrapped strtol(3) system call.
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EXAMPLE

41       The explain_strtol_or_die function is intended to be used in a  fashion
42       similar to the following example:
43              long result = explain_strtol_or_die(nptr, endptr, base);
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SEE ALSO

46       strtol(3)
47               convert a string to a long integer
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49       explain_strtol(3)
50               explain strtol(3) errors
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52       exit(2) terminate the calling process
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55       libexplain version 1.4
56       Copyright (C) 2009 Peter Miller
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60                                                      explain_strtol_or_die(3)
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