Check file Char to ASCII count c++

#include <iostream>
#include <fstream>

using namespace std;

int whatever(char &c){
// ascii 0-127
for (int i=0;i<=127;i++)
  if((int)c==i)
    return 1;
return 0;
}

int main(){
string afile;
cout<<"enter a filename ";
cin>>afile;
ifstream f(afile);
char p;
/* using the ASCII Table decimal */
  if(f.is_open()){
    int space=0,spec1=0,spec2=0,
    spec3=0,spec4=0,nums=0,
    caps=0,low=0,newline=0,total=0;
    while (f.get(p))
    {
    switch(p){
    case 10: // line feed/new line
    newline+=1;
    break;
    case 32: // space
    space+=1;
    break;
    case 33 ... 47: // special chars
    spec1+=1;
     break;
    case 48 ... 57: // 0-9
    nums+=1;
    break;
    case 58 ... 64: // special chars
    spec2+=1;
    break;
    case 65 ... 90: // caps lettera
    caps+=1;
    break;
    case 91 ... 96: // special chars
    spec3+=1;
    break;
    case 97 ... 122: // lower case letters
    low+=1;
    break;
    case 123 ... 126: // special chars
    spec4+=1;
    break;
        }
   if(whatever(p))
        total+=1;
      } // end while

    cout<<"\n"
    <<"newline= "<<newline<<"\n"
    <<"space= "<<space<<"\n"
    <<"captial letters="<<caps<<"\n"
    <<"lower case="<<low<<"\n"
    <<"special chars="<<(spec1+spec2+spec3+spec4)<<"\n"
    <<"numbers 0-9 ="<<nums<<"\n"
    <<"total= "<<total<<endl;

  } else {cout<<"something went wrong!"<<endl;}

f.close();

return 0;
}