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simple while loop

Hi there

I am writing a simple while loop which terminates on the condition that a certain value is found, as follows

Code:

std::string question = q.quest().que();

            std::string answer = q.ans().answer();

            std::string graphic = q.inf().info();

            std::string english1;

            std::string english2;

            std::string arabic1;

            std::string arabic2;

           

            

            while((answer != english1) || (answer != english2)) { 

                       random_shuffle(opt.begin(),opt.end()); 

                            english1 = opt[0].english();

                            arabic1 = opt[0].arabic();

                            english2 = opt[1].english();

                            arabic2 = opt[1].arabic();

            }

The program gets stuck in the while loop. I guess this is some sort of error in the while loops condition. If I take out the second condition and make it just based upon “English1”, then it works fine.

Any help?

Thanks in advance

Re: simple while loop

Code:

while((answer != english1) || (answer != english2))

Think over this code.
let answer != english1 is X
and answer != english2 is Y

Code:

Possible combination

X   Y   Result

0   0    0

0   1    1

1   0    1

1   1    1

Only condition when while loop breaks is When Result is 0 Which is only possible when answer = english1 and answer = english2 (Think how it can be possible)

TRy to change you while loop test condition

Regards