[c-prog] Re: char type string to int type variable.

[siddhiruhi011]

--- In c-prog@yahoogroups.com, "piyush_4love_4ever" <piyush_4love_4e...@...> 
wrote:
>
> can we chage a char type string into a int type variable.
>  pls show how is it possible ?
> suppose i define
>  char *str;
>  gets(str) ;   // suppose we get two int in str
>  now i want to store these two int into a single int type variable.
>  how is it possible??
>

we can use library functions to convert character string into integer variable 
but we can write our own function like the following one which is compiled 
using Turbo C


int main()
{
        char *str;
        int cnt;
        clrscr();
        gets(str);
        printf("%s\n",str);
        cnt=chng(str,5);
        printf("%d\n",cnt);
        getch();
        return 0;
}

int chng(char *tmp,int no)
{
        char ch1;
        int j,cng=0,cngs=0;
        for(j=0;j<no;j++)
        {
                ch1=tmp[j];
                cng=(int)ch1;
                cng&=0x0f;
                cngs+=cng;
                if(j!=no-1)
                        cngs*=10;
        }
        return cngs;
}

if there is some problem please let me know. thanx
from BISD Labs, New Delhi-46