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Message |
C#R#
Joined: 28 May 2005
Posts: 5
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| union inside struct |
 Posted: Mon Feb 06, 2006 5:32 am |
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Hi,
I searched this on the form, but don�t see not about the same problem.
look this:
| Code: | struct ULong { union { long LValue;
struct { int Lo,Hi; } merged;
} UValue;
};
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whell....it�s don�t work, I think that is not possible to put a union into struct.
I can compile in this way:
| Code: | struct TMerge { int Lo,Hi;};
union ULong { Long LValue;
Struct TMerge merged;
}; |
but I would�like to know if I have a way to use the first code. 
Thanks. |
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sjbaxter
Joined: 26 Jan 2006
Posts: 141
Location: Cheshire, UK
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| Posted: Mon Feb 06, 2006 9:30 am |
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The following works for me.
| Code: | typedef struct
{
int32 id;
int1 rtr;
int1 ext;
int dlc;
int priority;
union CAN_Message_Data
{
int idata[8];
int16 ldata[4];
int32 fdata[2];
} data;
} CAN_Message;
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Although a bug introduced in 3.242 causes other variables to be assigned at the same memory location as this structure. Works in 3.236 though !!!
I have informed CCS about this.
_________________
Regards,
Simon. |
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C#R#
Joined: 28 May 2005
Posts: 5
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| Posted: Sun Feb 12, 2006 6:35 am |
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HI sjbartex,
Yes, I understand, but still the doubt.
I see that we can put a union into struct, but what about the struct into union ?
Thanks. |
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