c++ selection sort

#include <iostream>
using namespace std;
typedef enum{
    buyuk,kucuk
}islem;
**** sirala(int *a,int boyut,islem e){
    int plm=0;
    switch(e){
    case kucuk:
        for(int i=0;i<boyut;i++){
            plm=i;
            for(int i2=i+1;i2<boyut;i2++){
                if(a[plm]>a[i2])plm=i2;
            }
            int temp=a[plm];
            a[plm]=a[i];
            a[i]=temp;
        }
        break;
    case buyuk:
        for(int i=0;i<boyut;i++){
            plm=i;
            for(int i2=i+1;i2<boyut;i2++){
                if(a[plm]<a[i2])plm=i2;
            }
            int temp=a[plm];
            a[plm]=a[i];
            a[i]=temp;
        }
        break;
    }
}
int main(){
    int plm[]={1,2,3,4,5,6,7};
    sirala(plm,7,buyuk);
    for(int i=0;i<7;i++)cout<<plm[i]<<"  ";
    
    char y;cin>>y;
}