[cs631apue] Size of large ints

yluo4 yluo4 at stevens.edu
Sun Oct 13 19:31:47 EDT 2013


I think you can use the following code:
  int len = 1;
  while (size / 10) {

}


On 10/13/2013 5:06 PM, Paul-Anthony Dudzinski wrote:
> Hey all,
> I am looking for a good way to measure the size of a large integer for
> instance when I run my program on /tmp I get:
> 
> pdudzins at gits:~/cs631/midterm$ ./a.out -l /tmp
> 
> drwxrwxrwx  2 root     root          4096 .X11-unix
> -rw-------  1 jschauma professor    10724 1
> drwxr-xr-x  3 swatts   student       4096 VisualGDB-RW-------  1
> JSCHAUMA PROFESSOR 2097152000 BIG
>  -rwxr-xr-x  1 swatts   student         56 dump-gdb-settings
> -rw-r--r--  1 jschauma professor     2041 f
> -rw-------  1 jschauma professor     2041 file
> drwxr-xr-x  2 jsexton  student       4096 hsperfdata_jsexton
> drwxr-xr-x  2 lxiong   student       4096 hsperfdata_lxiong
> drwxr-xr-x  2 snatara1 student       4096 hsperfdata_snatara1
> -rw-------  1 fcannava professor      611 krb5cc_11084_S26665
> -rw-------  1 jrisi    student        605 krb5cc_11492_u17070
> -rw-------  1 pdudzins student        611 krb5cc_11909_Iq7884
> drwx------  2 jschauma professor     4096 ssh-OkXFz27774
> 
> And the bolded line is messing up my column print lengh. When I
> measure the size of the size I am doing it like this:
> 
>         nlen_size =  sizeof(a->fts_statp->st_size);
>         if (nlen_size > len_size)
>                 len_size = nlen_size;
> 
> And I keep getting 8 instead of 10 which I am pretty sure the 8 bytes
> it takes to store an int...
> 
> Has anyone tried casting this as a character array and taking the size
> that way? Is there a library function that will just do this?
> 
> 
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