Geekers Point

C program for converting string to an integer using atoi() function:

#include<stdio.h>  
#include<stdlib.h>  

int main(){
    char str[50];
    int number;
 
    //Accepting a numer in string format  
    printf("Enter any number as a string : ");
    scanf("%s",str);
    
    //Converting string into the number;  
    number = atoi(str);  
         if(number==0 && str[0]!='0')
             printf("\nInvalid number");
         else
             printf("\n Equivalent number is : %d",number);
    return 0;
}

OUTPUT:

Enter any number as a string : 23anil
 Equivalent number is : 23