Check directory exists c++

[ramith]

Guys,
I wrote a simple code to check the existence of a directory (in UNIX based file systems) which is working for me. Have I done it in the correct way?

 
#include <dirent.h>
 
bool DirectoryExists( const char* pzPath )
{
    if ( pzPath == NULL) return false;
 
    DIR *pDir;
    bool bExists = false;
 
    pDir = opendir (pzPath);
 
    if (pDir != NULL)
    {
        bExists = true;    
        (void) closedir (pDir);
    }
 
    return bExists;
}