Syntax error: Array of Vectors in OO C++ - c++

Question

I've got an outline of a HashTable class I'm trying to make. I'm getting 3 errors output from Visual Studio, but I can't see the problem here. I'm fairly new to OO in C++ so it's probably something i've missed. It claims there is a problem with my array of vectors. The errors are:
error C2143: syntax error : missing ';' before '<' line 10
error C2238: unexpected token(s) preceding ';' line 10
error C4430: missing type specifier - int assumed. Note: C++ does not support default-int line 10
Here's my complete class, it's pretty empty right now:
#include <iostream>
#include <vector>
#include "stdafx.h"
using namespace std;
class HashTable
{
private:
const static int buckets = 100;
vector<int> hashTable[buckets]; //Internal storage
int hash(int toHash); //Performs hash function
public:
HashTable(); //Constructor
HashTable(int s); //Constructor
~HashTable(); //Destructor
void add(int toAdd); //Adds an element to the HashTable
void remove(int toDelete); //Deletes an element from the HashTable
bool search(int toSearch); //Returns true if element in HashTable, false otherwise
int getSize(); //Returns size of HashTable
void print(); //Prints current state of the hashtable
//TODO more methods...?
};
//Definitions...
HashTable::HashTable()
{
}
HashTable::~HashTable()
{
//cout << "Destroyed" << endl;
}
void HashTable::add(int toAdd)
{
//elements[hash(toAdd)] = toAdd;
}
void HashTable::remove(int toDelete)
{
}
bool HashTable::search(int toSearch)
{
}
int HashTable::getSize()
{
//return size;
}
void HashTable::print()
{
}
int main()
{
return 0;
}

Answer 1

The C++ here is valid (once you fill in the empty functions). The problem is with how Visual C++ uses precompiled headers. When you use precompiled headers (the default setting), the Visual C++ compiler expects the first line of each implementation file to be #include "stdafx.h", and doesn't compile anything that appears before that.
This means the the include of <vector> in your code is ignored, and thus compiling vector<int> causes an error.
If you move the line #include "stdafx.h" to the top this should compile. Or you can disable precompiled headers in the project settings.