Getting a File Extension?

Hi,

I've writ a function that gets all files in a directory, but would like to refine this by allowing it to recognise file extensions.

Unfortunatly, I can't find a way to do this - I've tried strpbrk, strrchar, and a number of other string functions, with lttle success. I either get compiler errors, or the added code fails to work as I would like..

So, does anyone know of either a Windows function do get an extension, or a _working_ way of getting the same thing from a string?

You should store your files names in string objects rather than character arrays. Then you can use functions such as find_last_of(). This should make it nice and easy. This link should give you everything you need to know about what the string object offers.

http://www.cppreference.com/cppstring/index.html

However, with a C style string, you should be able to achieve the result with something like

Code:

---

#include <iostream>
#include <cstring>

int main() {
    const char *myFile = "C:/Files/Data.Info/Owner.Data.txt";
    char *extPtr;
   
    char *find = strpbrk(myFile,".");
    while(find != NULL) {
      extPtr = find+1;
      find = strpbrk(extPtr,".");
    }
   
    std::cout << extPtr;
   
    return 0;
}

---

Code:

---

#include <iostream>
#include <cstring>

int main() {
    const char *myFile = "C:/Files/Data.Info/Owner.Data.txt";
    char *extPtr;

    extPtr = std::strrchr(myFile, '.');

    if ( extPtr )
        std::cout << ++extPtr;

    return 0;
}

---

SKeane, <cstring>'s strrchr() is in the std namespace, too:

Code:

---

#include <iostream>
#include <cstring>

int main() {
    const char *myFile = "C:/Files/Data.Info/Owner.Data.txt";
    char *extPtr;

    extPtr = std::strrchr(myFile, '.');

    if ( extPtr )
        std::cout << ++extPtr;

    return 0;
}

---