Thread: const variable...

Code:

#include <stdio.h>

int main(void) {
	const int a;
	printf("%d\n\n\n", *a);
	return 0;
}

when i compile and execute the above code on
a) Windows, Visual Studio (compiled as C code): it gives one warning on compilation and crashes on execution
b) Linux, and compiled using gcc and flags -Wall: there are no warnings and prints a garbage value on execution
c) Windows, Visual Studio (compiled as C++ code): does not compile and throws an error

what is the expected behaviour in this case??

Code:

#include<iostream>
using namespace std;

int main() {
	const int a;
	cout<<a;
    return 0;
}

in case of compilation as C++, i used this code

i just wanted to know the behavior ...
so i wrote this code..thus i was not expecting anything specific

If your compiler honest and truly compiled that without problems then yours is broken.

Anything similar is just as incorrect because a is not a pointer type.

Code:

int bar ( const int a ) 
{
   return *a; 
}

int main ( void )
{
    const int foo;
    bar( foo );

    return 0;
}

bar.c
bar.c(5) : error C2100: illegal indirection

what is broken???

and u can compile the above code to confirm what i have stated...

I agree with Mats...same result on SuSE 10 with gcc 4.1.0.