1explain_fseek_or_die(3)    Library Functions Manual    explain_fseek_or_die(3)
2
3
4

NAME

6       explain_fseek_or_die - reposition a stream and report errors
7

SYNOPSIS

9       #include <libexplain/fseek.h>
10       void explain_fseek_or_die(FILE *fp, long offset, int whence);
11       int explain_fseek_on_error(FILE *fp, long offset, int whence);
12

DESCRIPTION

14       The  explain_fseek_or_die  function is used to call the fseek(3) system
15       call. On failure an explanation will be  printed  to  stderr,  obtained
16       from  the explain_fseek(3) function, and then the process terminates by
17       calling exit(EXIT_FAILURE).
18
19       The explain_fseek_on_error function is used to call the fseek(3) system
20       call.  On  failure  an  explanation will be printed to stderr, obtained
21       from the explain_fseek(3) function, but still returns to the caller.
22
23       fp      The fp, exactly as to be passed to the fseek(3) system call.
24
25       offset  The offset, exactly as to be  passed  to  the  fseek(3)  system
26               call.
27
28       whence  The  whence,  exactly  as  to  be passed to the fseek(3) system
29               call.
30

RETURN VALUE

32       The explain_fseek_or_die function only returns on success, see fseek(3)
33       for  more  information. On failure, prints an explanation and exits, it
34       does not return.
35
36       The explain_fseek_on_error function always returns the value return  by
37       the wrapped fseek(3) system call.
38

EXAMPLE

40       The  explain_fseek_or_die  function is intended to be used in a fashion
41       similar to the following example:
42              explain_fseek_or_die(fp, offset, whence);
43

SEE ALSO

45       fseek(3)
46               reposition a stream
47
48       explain_fseek(3)
49               explain fseek(3) errors
50
51       exit(2) terminate the calling process
52

54       libexplain version 1.4
55       Copyright (C) 2010 Peter Miller
56
57
58
59                                                       explain_fseek_or_die(3)
Impressum