Check whether a file exist

//Check whether a file exist
//Portable to linux


#include <sys/stat.h>
#include <string>
using namespace std;

bool FileExists(string strFilename)
{
     struct stat stFileInfo;
     bool blnReturn= false;
     int intStat=-1;
     // Attempt to get the file attributes
     intStat = stat(strFilename.c_str(),&stFileInfo);
     if(intStat == 0)
     {
          // We were able to get the file attributes
          blnReturn = true;
     }
     else
     {
          // We were not able to get the file attributes. 
          blnReturn = false;
     } 
     return blnReturn;
}