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POC++ program crashes in the while loop when asked to use random number generator
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  1. POC++ program crashes in the while loop when asked to use random number generator
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    copied!<p>So I am trying to make a program which will generate random basic mathematical questions like addition, subtraction, etc.</p> <p>While I am trying to generate division questions I made a do-while loop which runs until the prerequisite is met for division quesions.</p> <p>But for some reason when I ask it to generate 20 division questions with none with remainder it always crashes.</p> <p>Please help</p> <p>Here's the code</p> <pre><code>#include &lt;iostream&gt; #include &lt;cstdlib&gt; #include &lt;ctime&gt; using namespace std; int correct,total,MAXVAL; const char oper[4]={'/','/','/','/'}; typedef struct data{ int first,second; char operation; }data; data datagenerator(){ data newData; newData.first= (rand()%MAXVAL); newData.operation=oper[rand()%4]; newData.second=(rand()%MAXVAL); return newData; } bool corrector(data newData){ bool isture=false; switch(newData.operation){ case '/': if((newData.first%newData.second)==0){ isture=true; } break; case '*': isture=true; break; case '+': isture=true; break; case '-': isture=true; break; } return isture; } void quizer(){ system("CLS"); for(int counter=1;counter&lt;=total;counter++){ cout&lt;&lt;"Q"&lt;&lt;counter&lt;&lt;": "; data newData; do{ newData=datagenerator(); }while(!corrector(newData)); cout&lt;&lt;newData.first&lt;&lt;newData.operation&lt;&lt;newData.second&lt;&lt;"\n"; } cout&lt;&lt;"\nYou got "&lt;&lt;correct&lt;&lt;"/"&lt;&lt;total&lt;&lt;"correct\n"; } int main(){ //srand((unsigned)time(0)); char x; cout&lt;&lt;"How many questions do you want?"&lt;&lt;endl; cin&gt;&gt;total; cout&lt;&lt;"Enter the maximum value\n"; cin&gt;&gt;MAXVAL; cout&lt;&lt;"Are you ready?\n"; cin&gt;&gt;x; quizer(); system("PAUSE"); return 0; } </code></pre>
 

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