Author: Dave Gomboc
Date: 16:50:10 12/02/99
Go up one level in this thread
On December 02, 1999 at 18:58:41, Dave Gomboc wrote:
>On December 02, 1999 at 16:21:48, Tom Kerrigan wrote:
>
>>I'm currently using the following to define a move:
>>
>>typedef union {
>> int i;
>> struct {
>> char from;
>> char to;
>> char promote;
>> char flags;
>> };
>>} move_t;
>>
>>This allows the structure to be treated as an integer, so moves can be copied
>>and compared easily.
>>
>>However, I just noticed that VC++ 5.0 produces a level 4 warning because the
>>struct is unnamed.
>>
>>How bad is this? Will some compilers not compile my stuff because of it?
>>
>>-Tom
>
>Not sure if unnamed structs are legit in C or not.
>
>I don't remember exactly, but I think that I tried ditching the int i and using
>an int for each member of the struct, and that doing this gave a speedup over
>the original code.
>
>Dave
Forgetting my point!... which is that I assessed the union of the int and the
struct of characters to be a premature, and unnecessary, optimization.
Dave
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