Printing bit representation of unsigned char* single_char;

Question

unsigned char* s_char = data + offset;
(*s_char) = size_t(((*s_char) & 0xf0)) | new_doff;

How to print s_char's bit representation?

Possible duplicate of [Is there a printf converter to print in binary format?](http://stackoverflow.com/questions/111928/is-there-a-printf-converter-to-print-in-binary-format) — peoro, Jan 28 '11 at 19:57
Confirmed. Unfortunally, that question didn't came up in search. — kagali-san, Jan 28 '11 at 20:02

score 1 · Accepted Answer · answered Jan 28 '11 at 20:00

1

You'll need to manually print it using something like:

  printf("%d%d%d%d%d%d%d%d", *s_char & 0x80, *s_char & 0x40, ..., *s_char & 0x01);

answered Jan 28 '11 at 20:00

Wes Hardaker

1

Ha, they indeed use it: http://google.com/codesearch?as_q=%22%25d%25d%25d%25d%25d%25d%25d%25d%22 – kagali-san Jan 28 '11 at 20:03

score 1 · Answer 2 · answered Jan 28 '11 at 20:00

1

I would use a type cast to int like

unsigned char* s_char = data + offset;  
(*s_char) = size_t(((*s_char) & 0xf0)) | new_doff;  
int s_char_int;
s_char_int = (int)s_char;

Then you can print it to the console or whatever else you want

answered Jan 28 '11 at 20:00

Nate Koppenhaver

2 Answers2