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POsorting array of struct by id
 

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  1. POsorting array of struct by id
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    <p>I take an array of record as case study in my Graduation Project. In the code I've written, I made an array of the structure and entered the id of the structs in an array of int to make the sorting easier but when it runs it gets stuck.</p> <pre><code>#include&lt;iostream.h&gt; struct book{ char Bname[8], Bsubject[8]; int copyies, Bid, Bfound; } a[100]; void Ider(book a[],int r[],int index){ for(int i=0;i&lt;index;i++) r[i]=a[i].Bid; } void swap(int &amp;a,int &amp;b){ int c=a; a=b; b=c; } void Bublesort(int a[],int n){ for(int j=0;j&lt;n;j++) for(int i=1;i&lt;n-1;i++) if(a[i]&gt;a[i+1]) swap(a[i+1],a[i]); } int bsearch(int b[],int key,int first,int last){ int midel=(first+last)/2; for(int i=0;i&lt;last;i++){ if(b[midel]==key) return midel; else if(b[midel]&gt;key) return bsearch(b,key,first,midel-1); else if(b[midel]&lt;key) return bsearch(b,key,midel+1,last); } } int main(){ int r,i, index=0,m[100]; char ch; do{ cout&lt;&lt;"Enter your"&lt;&lt;index+1&lt;&lt;" Book id"&lt;&lt;" "; cout&lt;&lt;endl; cin&gt;&gt;a[index].Bid; cout&lt;&lt;"Enter your"&lt;&lt;index+1&lt;&lt;" Book name"&lt;&lt;" "; cout&lt;&lt;endl; cin&gt;&gt;a[index].Bname; cout&lt;&lt;"Enter your"&lt;&lt;index+1&lt;&lt;" Book subject"&lt;&lt;" "; cout&lt;&lt;endl; cin&gt;&gt;a[index].Bsubject; index++; a[index].Bfound++; a[index].copyies++; if(index==99) break; quite : cout&lt;&lt;"Do you want to continue"; cin&gt;&gt;ch; } while(ch=='y'); Ider(a,m,index); Bublesort(m,index); char p; do{ cout&lt;&lt;"Do you want to search?"&lt;&lt;endl; cin&gt;&gt;p; cout&lt;&lt;"enter your id"; cin&gt;&gt;i; r=bsearch(m,i,0,index); cout&lt;&lt;a[r].Bfound&lt;&lt;" "; } while(ch=='y'); system("pause"); return 0; } </code></pre> <p>When it reaches <code>bublesort()</code> it hangs and didn't give any output, but why?</p>
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    1. USBill the Lizard
    1. USAbdalla Adam
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    1. COI don't see any `oop` here, just a struct and functions. Is this supposed to be object oriented?
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      1. UScrashmstr
    2. COthanx for help here
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      1. USAbdalla Adam
    3. CO@AbdallaAdam: Not really. That code would compile (except the inclusion of <iostream.h> [BTW, that header is deprecated, it should be <iostream>]) in C, which is not an OO language... the implication being that there is no object orientation in the code. Whether you want or need it is a completely different issue, but the question should not be tagged OOP
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      1. USDavid Rodríguez - dribeas
 

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