Doubt regarding C structures and arrays. Quick suggestions please

I have a doubt regarding C pointers, structures and arrays.

Code:

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I have a structure
typedef nx_struct DataMsg {
nx_uint16_t destID;
nx_uint16_t sourceID;
nx_uint16_t valueReported[100];
} DataMsg;

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I have a variable named a .

Code:

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a[100] ={100 values}

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I have a pointer created for a datapkt

Code:

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DataMsg* datapkt = (DataMsg*) (call RadioPacket.getPayload(&radiopkt, NULL));

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i need to set the array of the structure to the value of a

isnt this right

Code:

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datapkt->valueReported = a; ?

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Gives me an error saying , invalid lvalue in assignment

The data types mentioned above are similar to regular int

An explanation would be good as well.

You cannot assign to an array, so you should use say, memcpy() instead.

isnt there a concept of shallow copy in C?

Quote:

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Originally Posted by cyrux

isnt there a concept of shallow copy in C?

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If you are copying a pointer without copying what it points to, yes. But here you have an array, not a pointer.