Assigning an address to a global variable.

Is there a way to assign an address to a non-pointer global variable???

Well sure. An address is just a number:

Code:

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unsigned long foo = 0x12345678;

void *ptr = 0x12345678;

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What exactly are you trying to do?????!!!!!OMFGBBQ

unsigned long foo = 0x12345678;

Just sets foo.

I am trying to set the address of foo to 0x12345678

Is there a way to do that without making foo a pointer?

Code:

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someVar = (someVar's type) &someOtherVar

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Be careful because you might truncate the address depending on what the code is compiled on.

edit; I should have more carefully read your reply, you can't change the address of a variable because it's either a relative address on the stack that the compiler works with itself or some offset in a data section in your built application. Maybe with some wierd pragma or attribute you could set the address but I can't think of a reason you would want to. What are you trying to do in a broader sense (say, the entire function or application)?

I don't think there's a way to change the address of foo by even making it a pointer. You shouldn't care where variables are placed in memory unless you're doing something suspicious.

The code is compiled on a Unix Machine.

When trying the code you suggested I get the following error.

"Conversion to non-scalar type requested"

Why would you want to do this? You can not make up an address to assign a variable to. You can make a pointer and then make it point to an address. If you could pick the address off a variable, what is to make sure you are not overwriting other variables, or doing malicious stuff.

I have an array of structures. I need to allocate fixed memory space, so that I can manipulate this array of structures, which needs to be in this fixed mem space.
I think that making a pointer to a structure type, and then setting that pointer to point to this space is probably the best way to go.

Code:

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struct foo *structptr = (struct foo *)fixed_memory_ptr;

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Thank you!!!