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struct problem

 
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chava



Joined: 07 Sep 2003
Posts: 56

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struct problem
PostPosted: Thu Feb 26, 2004 4:11 am     Reply with quote
Hi
I have a variable which I want to access it's bits
I defined:
Code:
struct {
char b0:1;char b1:1;/*etc..*/}var;

now I want to use
Code:
if (bit_test(var,1)) ...


but the compiler reply with "A numeric expression must appear here"

does someone knows what the problem is?
Guest
PostPosted: Thu Feb 26, 2004 10:04 am     Reply with quote
First off I think you are defining a structure containing characters not bits.

struct
{

unsigned b0: 1; // try this

short b1; // or this

} var;

Now try

if ( var.b0 )

Hope this helps.

Doug
Douglas Richard



Joined: 08 Sep 2003
Posts: 49
Location: Concord NH

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PostPosted: Thu Feb 26, 2004 10:07 am     Reply with quote
Sorry I was not logged in when I responded before.

Doug
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