[Bug c++/19264] New: Float Calucation bug?

[dinocho at mail2000 dot com dot tw]

It's a simple code snipet like below:
#include <iostream>
using namespace std;

int main(){
        double a;
        double b;
        cin >> a;
        cin >> b;
        double guess;
        cin >> guess;
        cout << (guess==(double)(a/b)) << endl;
}

and if you enter the data like this way:
8
10
0.8

This way, a, b and guess will be assigned as 8, 10, 0.8.
So (guess==(double)(a/b)) should reutrn 1(true).
but it doesn't.
The result of this code will be "0".

BTW, if you try to debug it in GDB, and try to "print (guess==(double)(a/b))".
It will return true. You can see that GDB has the different answer to G++.

-- 
           Summary: Float Calucation bug?
           Product: gcc
           Version: 3.2.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dinocho at mail2000 dot com dot tw
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19264