convertion string to char ch[]

Code:

---

#include <cstdlib>
#include <iostream>
#include <string>

using namespace std;

int main()
{
    string line = "Today! I'm very-tired "; // if i do like this, the system will hault and Windows error msg appear about the error
    char str[] = ""; // if i use char str[] = "Today! I'm very-tired " every thing is fine
    strcpy(str, line.c_str());
    char* new_word;
    int total=0;

    new_word = strtok(str, "-.,;:~!#%^&*()=+[]{}\\<>|?/\"\t\v\n\r\f ");
   
    while (new_word != NULL)
    {
      string temp = string(new_word);
      cout << temp << endl;
      new_word = strtok(NULL, "-.,;:~!#%^&*()=+[]{}\\<>|?/\"\t\v\n\r\f ");
    }
}

---

The problem is the exercise i use read from text file, so i used getline to get the string line. How can i use strtok( char * c, const char * ch)?
And how to convert a string into char ch[] ?
Thx and regard

> char str[] = "";
Whilst valid, it does NOT have enough space to copy the string into.

Also, try using a std::string approach to tokenizing rather than running back to messy strtok()

Quote:

---

Also, try using a std::string approach to tokenizing rather than running back to messy strtok()

---

Sorry, i'm new with c+ so i don't get it.

I did try the size by string.size() and but into chr str[size] but it had error for initialize char str[]

What should i do?
Thx

You could allocate the char array dynamically, and you should note that you need size() + 1 char's - one for null terminator as well.

But you can tokenize the string with find_first_of, find_first_not_of and substr too.

Thx for the tip, i did it. I know dynamic but not much attention on that.

Code:

---

int size = line.length();
    char *str;
    str = new char[size+1];
    strcpy(str, line.c_str());

---

Thanks

> What should i do?
Keep reading more of the C++ std::string manual until you do "get it".

I have read some STL string. It's very helpful.

Thank you guys alot.