How can I read char by char from a string in C++?

Question

I've been meaning to read char by char from a string.

For example if I have a string= "Hello";

That I should get 5 chars:

'H'

'e'

'l'

'l'

'o'

any help on what do to?

Thanks!!!

Answer 1

You can do like this:

#include <string>

using namespace std;

int main()

{

char list[5];

string h = "hello";

for(int i=0; i<h.length(); i++)

{

list[i] = h.at(i);

//what do I have to do to read each character

//on that string? :( not read from a char array...

}

return 0;

}

Good luck,

peng

http://www.eptop.com

Answer 2

If you need help check out http://www.pchelpdoc.com

There is tons of help on there for free.

Good Luck.  

Answer 3

I would declare the string as a pointer to char like this:

const char *string = "Hello";

Then read it like an array (which it basically is) :

int i;

for (i = 0; i < strlen(string); i++) cout << string << endl;

You would get:

H

e

l

l

o

\n

Answer 4

You can create a null-terminated character array from a string, and use the character array as you would a C-style char array. Like this:

#include <iostream>

#include <string>

using namespace std;

int main(int argc, char *argv[]) {

  string s("hello");

  const char *p = s.c_str();

  while (*p != '\0') cout << *p++ << endl;

  return 0;

}

You should not change the value of any character in the array you get from c_str().