Hi there,

Its been a while now and im still trying to get a certain code to work. I asked some question about different commands etc. before, but now I hope this is the final one (combining all questions in one code).

I basically want to :

*Scan an input (should be character ? )

*Check if its a number

*If not, return error

*Convert that character into a float number

*Copy the value to another variable ( I called it imp here)

Here is what I came up with :

#include<stdio.h>
#include<stdlib.h>
#include<ctype.h>
main(){  
  int digits;
  float imp=0;
  int alpha;
  do{

    printf("Enter input\n\n");
    scanf("\n%c",&alpha);
    digits=isdigit(alpha);
      if(digits==0){
         printf("error\n\n");
      }
     imp=atof(alpha);
  }while(digits==0);

}

The problem is this code does not work at all ... It gives me that atof must be of a const char and whenever I try changing it around, it just keeps failing. I am frustrated and forced to ask here, because I believe I have tried alot and I keep failing, but I wont be relieved until I get it to work xD So I really need your help guys.

Please tell me why isnt this code working, what am I doing wrong ? I am still learning C and really appreciate your help :)