File: SafeVector.h

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/////////////////////////////////////////////////////////////////
// SafeVector.h
//
// STL vector with array bounds checking.  To enable bounds
// checking, #define ENABLE_CHECKS.
/////////////////////////////////////////////////////////////////

#ifndef SAFEVECTOR_H
#define SAFEVECTOR_H

#include <cassert>
#include <vector>
#include <cstddef>

/////////////////////////////////////////////////////////////////
// SafeVector
//
// Class derived from the STL std::vector for bounds checking.
/////////////////////////////////////////////////////////////////

template<class TYPE>
class SafeVector : public std::vector<TYPE>{
 public:

  // miscellaneous constructors
  SafeVector() : std::vector<TYPE>() {}
  SafeVector (size_t size) : std::vector<TYPE>(size) {}
  SafeVector (size_t size, const TYPE &value) : std::vector<TYPE>(size, value) {}
  SafeVector (const SafeVector &source) : std::vector<TYPE>(source) {}

#ifdef ENABLE_CHECKS

  // [] array bounds checking
  TYPE &operator[](int index){
    assert (index >= 0 && index < (int) size());
    return std::vector<TYPE>::operator[] ((size_t) index);
  }

  // [] const array bounds checking
  const TYPE &operator[] (int index) const {
    assert (index >= 0 && index < (int) size());
    return std::vector<TYPE>::operator[] ((size_t) index) ;
  }

#endif

};

// some commonly used vector types
typedef SafeVector<int> VI;
typedef SafeVector<VI> VVI;
typedef SafeVector<VVI> VVVI;
typedef SafeVector<float> VF;
typedef SafeVector<VF> VVF;
typedef SafeVector<VVF> VVVF;

#endif