problem while reading numbers

[meenasupari]

Hi!

I have a problem with the output of the following code.

 #include<stdio.h>
            #include<string.h>
      
       main(){
       int Number=0;
       char c,*s;
      
      int base=10;
      while((c=getchar())!='\n')
      {
      if(atoi(&c)>0)
              Number=Number*base+atoi(&c);
     }
     
     sprintf(s,"%i", Number);
     printf("%s\n",s);
     }

it works fine till I input a number starting with a '5'
Can anybody please tell me what exactly is the problem?

Thanks in advance
Mee.

[weaknessforcats]

getchar returns an int. You are assigning that return to a char, which is 8 bits instead of 32.

You might try changing c to an int.