./a.out results in no such file or directory

code :

#include <string.h>
#include <fstream>
#include <iostream>
#include <memory>
#include <sstream>
#include <array>
#include <vector>
#include <map>
#include <dirent.h>


 inline bool ends_with(std::string const & value, std::string const & ending);
 std::vector<std::string> getFilesInDir(std::string path);
 std::map<std::string, int> solve(std::string searchQuery, std::string pth);

inline bool ends_with(std::string const & value, std::string const & ending) {
    if (ending.size() > value.size()) return false;
    return std::equal(ending.rbegin(), ending.rend(), value.rbegin());
}

std::vector<std::string> getFilesInDir(std::string path) {
    DIR *dir;
    struct dirent *ent;
    const char * constPath = std::string{path}.c_str();
    std::vector<std::string> directories{};
    if ((dir = opendir(constPath)) != NULL) {
      /* print all the files and directories within directory */
      while ((ent = readdir (dir)) != NULL) {
        auto pos = directories.end();
        // if(ends_with(ent->d_name, "log"))
          directories.insert(pos, ent->d_name);
      }
      closedir(dir);
    } else {
      /* could not open directory */
      perror ("");
      return directories; //TODO: change this line to throw an exception and return nothing
    }
    return directories;
}


int main() {
    int i = 0;
    auto files = getFilesInDir("Users");
    for(i = 0; i < files.size(); i++) {
        std::string file = files.at(i);
        printf("file : %s\n", &file);
    }
}

I compile with :

g++ - std=c++0x Analyzer.cpp

compiles just fine with an warning for the printf. when I do :

ls -al a.out

it tells me its an executable -rwxr-xr-x 1 Kevin staff 8720 Feb 21 19:50 a.out but when I try to do ./a.out it gives me no such file or directory I'm not sure what's going on here compilation is throwing no errors just a warning about the printf in the main and the ls -al is telling me the file is an executable. When I remove the method call for getFilesInDir()it compiles and runs fine. If anyone has faced this problem and found a solution your help will be gladly appreciated.

Also the operating system for the machine I'm using is MacOS 64 bit architecture.