// Str_to_Int.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"

int m_strlen(char *str)
{
int length =0;
while(*str)
{
length ++;
str++;
}
return length;
}

int stepen(int arg1, int n)
{ int i,res=1;
for (i=0; i<n; i++)
{
res *= arg1;
}
return res;
}

void str_to_int(char *str, int *inT)
{int i,length = m_strlen(str);
*inT =0;
for(i=0; i<length; i++)
{
*inT += ((int)str[i]-48)*stepen(10,length-i-1);
}
}

void reverse(char *str)
{int i,c,length;
length = m_strlen(str)/2;
for (i=0; i<=length; i++)
{
c = str[length*2-i];
str[length*2-i]=str[i];
str[i]=c;
}
}

void int_to_str(int *inT, char *str)
{ int length,i =0;
while (*inT > 0)
{
str[i]= (char)(*inT%10+48);
*inT /= 10;
i++;
}
//str[i]= (char)(*inT%10+48);
str[i]='\0';
reverse(str);
}

int _tmain(int argc, _TCHAR* argv[])
{
char str[256];
int inT,rep=1;
char c[256];
while(rep)
{
printf("Select mode: 1 - Int to Str \n");
printf(" 2 - Str to Int \n");
printf("Enter integer value: ");
scanf("%d",&inT);

if (inT==1)
{
printf("Selected mode: Int to Str\n");
printf("Enter integer value: ");
scanf("%d",&inT);
int_to_str(&inT,str);
printf("Returning Str value: '");
printf("%s'",str);
printf("\n");
}
else
{ printf("Selected mode: Str to int \n");
printf("Enter String value (digits only): ");
getsİ; gets(str);
str_to_int(str,&inT);
printf("Returning Int value: ");
printf("%d",inT);
printf("\n");
}
printf("Repeate? ");
scanf("%d",&rep);
}
return 0;
}