Dev - C++ - Contador en una cadena

#include<iostream>

#include <string.h>

#include<conio.h>

using namespace std;

int main(){

  char cadena [] = "texto a consultar.\n" ;

   cin.getline(cadena,30,'\n');

  int vocales=0, consonante=0;

   int x=0;

  for( x = 0; x<= cadena.length;x++){

    if((cadena[x]=='a')or (cadena[x]=='e')or (cadena[x]=='i')or (cadena[x]=='o')or (cadena[x]=='u')){

       vocales++;

     }else

      {

       consonante++;}

   }

  cout<<"Existen "<<vocales<<" vocales y "<<consonante<<" consonantes"<<endl;

  cin.get();

  cin.get();

return 0;}

#include <iostream>

#include <string>

#include <cctype>

using namespace std;

int main()

{

    int a = 0, e = 0, i = 0, o = 0, u = 0, c = 0;

    int totalV = 0, totalC = 0, total = 0;

    string frase;

    cout << "\nEscriba una frase: ";

    getline( cin, frase );

    for( int j = 0; j < frase.size(); j++ ) {

        frase[j] = toupper(frase[j]);

        switch( frase[j] ) {

            case 'A': a++; totalV++; total++; break;

            case 'E': e++; totalV++; total++; break;

            case 'I': i++; totalV++; total++; break;

            case 'O': o++; totalV++; total++; break;

            case 'U': u++; totalV++; total++; break;

            default: if(isalpha( frase[j] )) { c++; totalC++; total++; }; break;

        }

    }

    cout << "\nTotal caracteres: " << total

         << "\nTotal consonantes: " << totalC

         << "\nTotal vocales: " << totalV

         << "\n A: " << a

         << "\n E: " << e

         << "\n I: " << i

         << "\n O: " << o

         << "\n U: " << u

         << endl;

    return 0;

}

string frase = "La frase que quieras";