Thread: Need to simplify/shorten this code. Help.

Im doing this days between dates prog and I need to shorten this fuction without loosing its purpose. Can someone help.

Code:

int days (int yer2,int yer1,int mnth2,int mnth1,int day1,int day2)
{
     int fyear1,syear1,fyear2,syear2,theyer1,theyer2;
     if (mnth1==1 || mnth2==1 || mnth1==2  || mnth2==2)
     {
        fyear1=int((yer1-1)/100);
        syear1=2-fyear1+int(fyear1/4);
        fyear2=int((yer2-1)/100);
        syear2=2-fyear2+int(fyear2/4);
        theyer1=int(365.25*(yer1-1))+int(30.6001*(mnth1+13))+fyear1+day1+1720995;
        theyer2=int(365.25*(yer2-1))+int(30.6001*(mnth2+13))+syear2+day2+1720995;
        
     }
     else
     {
        fyear1=int(yer1/100);
        fyear1=2-fyear1+(int(fyear1/4));
        syear2=int(yer2/100);
        syear2=2-syear2+(int(syear2/4));
        theyer1=int(365.25*(yer1))+int(30.6001*(mnth1+1))+fyear1+day1+1720995;
        theyer2=int(365.25*(yer2))+int(30.6001*(mnth2+1))+syear2+day2+1720995;
        
     }
     return abs(theyer1-theyer2);

}