How does it work getchar()?

[carriann]

Reading on the Internet, I realized that gettingchar(s) is the same std: cin, only the entrance receives one symbol, and this code has to eject "Ch= + the declared symbol." Why does this code endlessly request the introduction of symbols and brings nothing out?

int main() {
char ch;
ch = getchar();
cout << "Ch= " << ch << endl;
system("pause");
return 0; }

[meriah]

I don't know what you want, but there's no problem with the method. getChar()a problem in method q0()which is caused by main()the symbol required and if the symbol is within the range [A;z] or outside, method q0() It will be called again and again demanding the symbol until a gap is established.

#include "stdafx.h"
#include <iostream>
using namespace std;
int length = 0;

char ch;
void q1();
void q0() {

ch = getchar();

if ((ch >= 'A') && (ch <= 'z')) {

length++;

q0();

}

else if (ch == ' ') {

q1();

}

else {

length = 0;

q0();

}

}
void q1() {

return; // ???

}
int main() {

ch = getchar();

q0();

cout <<"Ch= "<<ch<<endl;

system("pause");

return 0;

}