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

6       explain_strtoull_or_die - convert string to integer and report errors
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SYNOPSIS

9       #include <libexplain/strtoull.h>
10       unsigned  long  long  explain_strtoull_or_die(const  char  *nptr,  char
11       **endptr, int base);
12       unsigned long long  explain_strtoull_on_error(const  char  *nptr,  char
13       **endptr, int base))
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DESCRIPTION

16       The  explain_strtoull_or_die  function  is used to call the strtoull(3)
17       system call. On failure an  explanation  will  be  printed  to  stderr,
18       obtained  from  the  explain_strtoull(3) function, and then the process
19       terminates by calling exit(EXIT_FAILURE).
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21       The explain_strtoull_on_error function is used to call the  strtoull(3)
22       system  call.  On  failure  an  explanation  will be printed to stderr,
23       obtained from the explain_strtoull(3) function, but  still  returns  to
24       the caller.
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26       nptr    The  nptr,  exactly  as  to be passed to the strtoull(3) system
27               call.
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29       endptr  The endptr, exactly as to be passed to the  strtoull(3)  system
30               call.
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32       base    The  base,  exactly  as  to be passed to the strtoull(3) system
33               call.
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RETURN VALUE

36       The explain_strtoull_or_die function only returns on success, see  str‐
37       toull(3)  for  more  information. On failure, prints an explanation and
38       exits, it does not return.
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40       The explain_strtoull_on_error function always returns the value  return
41       by the wrapped strtoull(3) system call.
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EXAMPLE

44       The  explain_strtoull_or_die function is intended to be used in a fash‐
45       ion similar to the following example:
46              unsigned long long result = explain_strtoull_or_die(nptr, endptr, base);
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SEE ALSO

49       strtoull(3)
50               convert a string to an unsigned long integer
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52       explain_strtoull(3)
53               explain strtoull(3) errors
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55       exit(2) terminate the calling process
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58       libexplain version 0.40
59       Copyright (C) 2009 Peter Miller
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63                                                    explain_strtoull_or_die(3)
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