Hi Serge,
For local variables at compile time, you need to use sizeof.
If you want to see the local variable size at link time, you'll have to do a disassembly. And even then, it's tricky, because local variable names will be hard to discern if debugging info is present, or highly difficult without debugging information.
(For non-local variables, you can see the size in the nm dump.)
One bootstrapping trick that some programs use to determine the size of certain objects -- such as needing to know the size to alter compilation behavior via the preprocessor -- is to compile a small program that outputs the size and then use that to create a compile time variable for the application. For instance...
#include <iostream>
#include "MyStruct.h"
using namespace std;
int main()
{
cout << "#define MYSTRUCT_SIZE " << sizeof(MyStruct) << endl;
}HTH, --Eljay
