g++ delete issue

[Nilmoni Deb <ndeb@ece.cmu.edu>]

"gcc -v"

Reading specs from /usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.3.1/specs
Configured with: ../configure --prefix=/usr --libdir=/usr/lib 
--with-slibdir=/lib --mandir=/usr/share/man --infodir=/usr/share/info 
--enable-shared --enable-threads=posix --disable-checking 
--enable-long-long --enable-__cxa_atexit 
--enable-languages=c,c++,ada,f77,objc,java,pascal 
--host=i586-mandrake-linux-gnu --with-system-zlib
Thread model: posix
gcc version 3.3.1 (Mandrake Linux 9.2 3.3.1-2mdk)



The following C++ program compiles ok without any warning, when I use 
"g++ -g file.cpp" .

#include <iostream>
using namespace std;
       
int main()
{
    int u=3;
   
    cout << "u = " << u << endl;
   
    delete &u;
   
    return 0;
}

During runtime, the program segmentation faults after printing the value 
of u. The culprit is obviously the "delete" statement.
My concern is that the compiler allows the explicit "delete &u" 
operation even though the variable u is not user allocated. Should
the compiler be expected to give a warning/error message when such a 
statement appears ?

thanks...