Add character

[bstroe]

I want to make a function “addChars” that displays after each vowel "*"
It must change the variable on call.
EX: char s[200];
s[0] = 'a';
s[1] = 'n';
s[2] = 'a';
s[3] = 0;
addChars(s);
cout << s; => a*na*

In my code:
addChars(s) => a*na*
cout << s; => ana
=> a$na$ana
It only needs to display the modified s variable.

  #include <iostream>
#include <cstring>

using namespace std;
void addChars(char sir[201]) {
  int i;
  int n = strlen(sir);
  if (strchr(sir, 'a') || strchr(sir, 'e') || strchr(sir, 'i') || strchr(sir, 'o') || strchr(sir, 'u')) {
    for (i = 0; i < n; i++) {
      cout << sir[i];
      if (strchr("aeiou", sir[i]) != 0) {
        cout << "*";
      }
    }
  }
}
int main() {
char s[200];
s[0] = 'a';
s[1] = 'n';
s[2] = 'a';
s[3] = 0;
addChars(s);
cout << s; 
}

[seeplus]

Try:

#define _CRT_SECURE_NO_WARNINGS

#include <iostream>
#include <cstring>
using namespace std;

constexpr size_t MAXSTR {200};
using Str = char[MAXSTR];

void addChars(Str sir) {
	Str temp {};

	for (char* str = sir, *t = temp; *str; ++str, ++t)
		if (strchr("aeiou", *t = *str) != nullptr)
			*++t = '*';

	strcpy(sir, temp);
}

int main() {
	Str s {"ana"};

	addChars(s);

	cout << s << '\n';
}

a*na*