tags:

views:

140

answers:

1
+1  Q: 

What does the : do in a struct declaration after a member

In:

struct foo {
  unsigned bar : 2;
};

What does the ': 2' do?

+14  A: 

It declares a bit field. The number specifies the size of that member in bits.

Mehrdad Afshari  2009-11-04 17:10:54
+1 - best answer.
Tim Post  2009-11-04 17:16:51
Thanks, it makes sense now :).
Sverre Rabbelier  2009-11-04 17:37:35

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