برنامه تبدیل مبناها

[amin66]

سلام خدمت همه دوستان.من در برنامه تبدیل مبناها احتیاج به یه کمی توضیح دارم.
داخل برنامه که گذاشتم می خوام ببینم این تابع با اسم myten چه کاری انجام میده .یه مختصری از توابع برنامه ممنون می شم .یا علی مدد

#include <iostream.h>
#include <conio.h>
#include <math.h>
//----------------------------------------------//
char MyChar(long int num)
{
char a;
if (num <= 9 && num >= 0) a = num + 48;
else if (num == 10) a = 'A';
else if (num == 11) a = 'B';
else if (num == 12) a = 'C';
else if (num == 13) a = 'D';
else if (num == 14) a = 'E';
else if (num == 15) a = 'F';
return a;
}
//----------------------------------------------//
long int Myflag(long int mabna ,char num[])
{
long int i = 0 , counter = 0;
long int mynum;
long int flag = 1;
for ( i =0 ; num[i] != '\0' ; i++)
{
if (num[i] >=48 && num[i] <=57) mynum = num[i]-48 ;
else if (num[i] == 'A' || num[i] == 'a') mynum = 10;
else if (num[i] == 'B' || num[i] == 'b') mynum = 11;
else if (num[i] == 'C' || num[i] == 'c') mynum = 12;
else if (num[i] == 'D' || num[i] == 'd') mynum = 13;
else if (num[i] == 'E' || num[i] == 'e') mynum = 14;
else if (num[i] == 'F' || num[i] == 'f') mynum = 15;
if (mynum >= mabna) flag = 0;
}
return flag;
}
//----------------------------------------------//
long int Myten(long int mabna , char num[])
{
long int i = 0 , count = 0 , counter = 0;
long int ten = 0;
long int mynum;
for (i = 0 ; num[i] != '\0' ; i++ ) counter++;
counter--;
for ( i = counter ; i >=0 ; i--)
{
if (num[i] >=48 && num[i] <=57) mynum = num[i]-48 ;
else if (num[i] == 'A' || num[i] == 'a') mynum = 10;
else if (num[i] == 'B' || num[i] == 'b') mynum = 11;
else if (num[i] == 'C' || num[i] == 'c') mynum = 12;
else if (num[i] == 'D' || num[i] == 'd') mynum = 13;
else if (num[i] == 'E' || num[i] == 'e') mynum = 14;
else if (num[i] == 'F' || num[i] == 'f') mynum = 15;
ten =ten +(mynum * pow(mabna , count));
count++;
}
return ten;
}
//----------------------------------------------//
int main()
{
clrscr();
long int mabna1 , mabna2 , count = 0 , ten , i , mod;
char all[100] , number , num[100];
cout << "Please Enter The Input Base= ";
cin >> mabna1;
cout << "Please Enter The Number= ";
cin >> all;
if (!Myflag (mabna1 , all))
{
cout << "\nThe Number Does Not Math With The Input Base";
}
else
{
cout << "Please Enter The Output Base= ";
cin >> mabna2;
ten = Myten (mabna1 , all);
mod = ten % mabna2;
num[0] = MyChar(mod);
while (ten >= mabna2)
{
ten /= mabna2;
mod = ten % mabna2;
count++;
num[count] = MyChar(mod);
}
for (i = count ; i >= 0 ; i--)
{
cout << num[i];
}
}
getch();
return 0;
}