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
