vector<int> - missing type specifier

Question

This is the header of a class I am working on in Visual C++ Express 2010:

/* custom class header to communicate with LynxMotion robot arm */

#include <vector>
using namespace System;
using namespace System::IO::Ports;

public ref class LynxRobotArm
{
public:
    LynxRobotArm();
    ~LynxRobotArm();
    void connectToSerialPort(String^ portName, int baudRate);
    void disconnectFromSerialPort();
    void setCurrentPosition(int channel, int position);
    int getCurrentPosition(int channel);
    void moveToPosition(int channel, int position);

private:
    void initConnection();
    SerialPort^ serialPort;
    array<String^> ^serialPortNames;
    String^ portName;
    int baudRate;
    vector<int> currentPosition;
};

Everything worked fine until I changed the last line int currentPosition to vector<int> currentPosition. If I try to compile / debug now, I get these error messages:

error C2143: syntax error : missing ';' before '<'
error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
error C2238: unexpected token(s) preceding ';'

I checked MSDN for some more info on these error codes, but I cannot figure out what is wrong with the code. Any ideas?

Answer 1

vector is template defined within std namespace, thus you should write std::vector<int> instead of vector<int>.

Alternatively you could write using namespace std; at the beginning of this file, but note that this is considered bad practice since it could cause some of names of your classes to become ambiguous.