2D vector problem in C++

#include <iostream>
#include <algorithm>
#include <vector>
#include <fstream>
#include <cstdio>
#include <cstdlib>
#include <ctime>
#include <string>
#include <typeinfo>
#include <iterator>

using namespace std;



void showit2(string j) {
	cout << ' ' << j;
}

void showit(vector<string> i) {	
	for_each(i.begin(), i.end(), showit2);
}



int main () {

  time_t time1 = time(NULL);

  char c;
  int n = 0;

  // Initiate 2D vector v, wich contains vector<string> elements.
  vector< vector<string> > v;
  v.reserve(100);

  string theWord;
  int cCount = 0;


  FILE * pFile;
  long lSize;
  char * buffer;
  size_t result;

  pFile = fopen("wordlist01.dat","rb");
  if (pFile==NULL) {fputs ("File error",stderr); exit (1);}

  // obtain file size:
  fseek (pFile , 0 , SEEK_END);
  lSize = ftell (pFile);
  rewind (pFile);

  // allocate memory to contain the whole file:
  buffer = (char*) malloc (sizeof(char)*lSize);
  if (buffer == NULL) {fputs ("Memory error",stderr); exit (2);}

  // copy the file into the buffer:
  result = fread (buffer,1,lSize,pFile);
  if (result != lSize) {fputs ("Reading error",stderr); exit (3);}




  /* the whole file is now loaded in the memory buffer. */

  /* 100 below is just a test number, it must be able to loop thru the whole buffer */



  for (int x = 0; x < 100; ++x) {
	
	if (buffer[x] == '\n') {
		
		if ((v[cCount].capacity() - v[cCount].size()) == 0) {
		  // If the capacity is not enough, throw in another 50 elements.
		  v[cCount].reserve(50);
		}

		v[cCount].push_back(theWord);
		cout << theWord;
		
		theWord = "";
		cCount = 0;

	} else {
		theWord += buffer[x];
		cCount++;
	}
  }

  for_each(v.begin(), v.end(), showit); // This doesn't work either.. prints nothing..

  // terminate
  fclose (pFile);
  free (buffer);

  return 0;
}

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