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use a more c++-ish way of preventing the compiler from generating default operator=

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when it's not wanted. Thanks to Christian Mayer for the tip.
This commit is contained in:
Benoit Jacob 2007-12-12 16:52:17 +00:00
parent fa8009c6b7
commit 7ddc13b9fa
12 changed files with 28 additions and 55 deletions
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7
src/Core/Cast.h
View File

@ -26,8 +26,8 @@
#ifndef EIGEN_CAST_H
#define EIGEN_CAST_H
template<typename NewScalar, typename MatrixType> class Cast
: public MatrixBase<NewScalar, Cast<NewScalar, MatrixType> >
template<typename NewScalar, typename MatrixType> class Cast : NoDefaultOperatorEquals,
public MatrixBase<NewScalar, Cast<NewScalar, MatrixType> >
{
public:
typedef NewScalar Scalar;
@ -42,9 +42,6 @@ template<typename NewScalar, typename MatrixType> class Cast
Cast(const Cast& other)
: m_matrix(other.m_matrix) {}
// assignments are illegal but we still want to intercept them and get clean compile errors
EIGEN_INHERIT_ASSIGNMENT_OPERATORS(Cast)
private:
const Cast& _ref() const { return *this; }
int _rows() const { return m_matrix.rows(); }

7
src/Core/Conjugate.h
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@ -26,8 +26,8 @@
#ifndef EIGEN_CONJUGATE_H
#define EIGEN_CONJUGATE_H
template<typename MatrixType> class Conjugate
: public MatrixBase<typename MatrixType::Scalar, Conjugate<MatrixType> >
template<typename MatrixType> class Conjugate : NoDefaultOperatorEquals,
public MatrixBase<typename MatrixType::Scalar, Conjugate<MatrixType> >
{
public:
typedef typename MatrixType::Scalar Scalar;
@ -42,9 +42,6 @@ template<typename MatrixType> class Conjugate
Conjugate(const Conjugate& other)
: m_matrix(other.m_matrix) {}
// assignments are illegal but we still want to intercept them and get clean compile errors
EIGEN_INHERIT_ASSIGNMENT_OPERATORS(Conjugate)
private:
const Conjugate& _ref() const { return *this; }
int _rows() const { return m_matrix.rows(); }

7
src/Core/Difference.h
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@ -26,8 +26,8 @@
#ifndef EIGEN_DIFFERENCE_H
#define EIGEN_DIFFERENCE_H
template<typename Lhs, typename Rhs> class Difference
: public MatrixBase<typename Lhs::Scalar, Difference<Lhs, Rhs> >
template<typename Lhs, typename Rhs> class Difference : NoDefaultOperatorEquals,
public MatrixBase<typename Lhs::Scalar, Difference<Lhs, Rhs> >
{
public:
typedef typename Lhs::Scalar Scalar;
@ -47,9 +47,6 @@ template<typename Lhs, typename Rhs> class Difference
Difference(const Difference& other)
: m_lhs(other.m_lhs), m_rhs(other.m_rhs) {}
// assignments are illegal but we still want to intercept them and get clean compile errors
EIGEN_INHERIT_ASSIGNMENT_OPERATORS(Difference)
private:
const Difference& _ref() const { return *this; }
int _rows() const { return m_lhs.rows(); }

7
src/Core/Identity.h
View File

@ -26,8 +26,8 @@
#ifndef EIGEN_IDENTITY_H
#define EIGEN_IDENTITY_H
template<typename MatrixType> class Identity
: public MatrixBase<typename MatrixType::Scalar, Identity<MatrixType> >
template<typename MatrixType> class Identity : NoDefaultOperatorEquals,
public MatrixBase<typename MatrixType::Scalar, Identity<MatrixType> >
{
public:
typedef typename MatrixType::Scalar Scalar;
@ -42,9 +42,6 @@ template<typename MatrixType> class Identity
assert(RowsAtCompileTime == ColsAtCompileTime);
}
// assignments are illegal but we still want to intercept them and get clean compile errors
EIGEN_INHERIT_ASSIGNMENT_OPERATORS(Identity)
private:
Identity& _ref() { return *this; }
const Identity& _ref() const { return *this; }

3
src/Core/NumTraits.h
View File

@ -81,9 +81,6 @@ template<> inline int random(int a, int b)
}
template<> inline int random()
{
// "rand() % n" is bad, they say, because the low-order bits are not random enough.
// However here, 21 is odd, so random() % 21 uses the high-order bits
// as well, so there's no problem.
return random<int>(-10, 10);
}
inline bool isMuchSmallerThan(int a, int, int = precision<int>())

7
src/Core/Opposite.h
View File

@ -26,8 +26,8 @@
#ifndef EIGEN_OPPOSITE_H
#define EIGEN_OPPOSITE_H
template<typename MatrixType> class Opposite
: public MatrixBase<typename MatrixType::Scalar, Opposite<MatrixType> >
template<typename MatrixType> class Opposite : NoDefaultOperatorEquals,
public MatrixBase<typename MatrixType::Scalar, Opposite<MatrixType> >
{
public:
typedef typename MatrixType::Scalar Scalar;
@ -42,9 +42,6 @@ template<typename MatrixType> class Opposite
Opposite(const Opposite& other)
: m_matrix(other.m_matrix) {}
// assignments are illegal but we still want to intercept them and get clean compile errors
EIGEN_INHERIT_ASSIGNMENT_OPERATORS(Opposite)
private:
const Opposite& _ref() const { return *this; }
int _rows() const { return m_matrix.rows(); }

7
src/Core/Product.h
View File

@ -60,8 +60,8 @@ struct ProductUnroller<Index, 0, Lhs, Rhs>
static void run(int, int, const Lhs&, const Rhs&, typename Lhs::Scalar&) {}
};
template<typename Lhs, typename Rhs> class Product
: public MatrixBase<typename Lhs::Scalar, Product<Lhs, Rhs> >
template<typename Lhs, typename Rhs> class Product : NoDefaultOperatorEquals,
public MatrixBase<typename Lhs::Scalar, Product<Lhs, Rhs> >
{
public:
typedef typename Lhs::Scalar Scalar;
@ -81,9 +81,6 @@ template<typename Lhs, typename Rhs> class Product
Product(const Product& other)
: m_lhs(other.m_lhs), m_rhs(other.m_rhs) {}
// assignments are illegal but we still want to intercept them and get clean compile errors
EIGEN_INHERIT_ASSIGNMENT_OPERATORS(Product)
private:
const Product& _ref() const { return *this; }
int _rows() const { return m_lhs.rows(); }

7
src/Core/Random.h
View File

@ -26,8 +26,8 @@
#ifndef EIGEN_RANDOM_H
#define EIGEN_RANDOM_H
template<typename MatrixType> class Random
: public MatrixBase<typename MatrixType::Scalar, Random<MatrixType> >
template<typename MatrixType> class Random : NoDefaultOperatorEquals,
public MatrixBase<typename MatrixType::Scalar, Random<MatrixType> >
{
public:
typedef typename MatrixType::Scalar Scalar;
@ -41,9 +41,6 @@ template<typename MatrixType> class Random
assert(rows > 0 && cols > 0);
}
// assignments are illegal but we still want to intercept them and get clean compile errors
EIGEN_INHERIT_ASSIGNMENT_OPERATORS(Random)
private:
const Random& _ref() const { return *this; }
int _rows() const { return m_rows; }

7
src/Core/ScalarMultiple.h
View File

@ -26,8 +26,8 @@
#ifndef EIGEN_SCALARMULTIPLE_H
#define EIGEN_SCALARMULTIPLE_H
template<typename MatrixType> class ScalarMultiple
: public MatrixBase<typename MatrixType::Scalar, ScalarMultiple<MatrixType> >
template<typename MatrixType> class ScalarMultiple : NoDefaultOperatorEquals,
public MatrixBase<typename MatrixType::Scalar, ScalarMultiple<MatrixType> >
{
public:
typedef typename MatrixType::Scalar Scalar;
@ -43,9 +43,6 @@ template<typename MatrixType> class ScalarMultiple
ScalarMultiple(const ScalarMultiple& other)
: m_matrix(other.m_matrix), m_scalar(other.m_scalar) {}
// assignments are illegal but we still want to intercept them and get clean compile errors
EIGEN_INHERIT_ASSIGNMENT_OPERATORS(ScalarMultiple)
private:
const ScalarMultiple& _ref() const { return *this; }
int _rows() const { return m_matrix.rows(); }

10
src/Core/Sum.h
View File

@ -26,8 +26,8 @@
#ifndef EIGEN_SUM_H
#define EIGEN_SUM_H
template<typename Lhs, typename Rhs> class Sum
: public MatrixBase<typename Lhs::Scalar, Sum<Lhs, Rhs> >
template<typename Lhs, typename Rhs> class Sum : NoDefaultOperatorEquals,
public MatrixBase<typename Lhs::Scalar, Sum<Lhs, Rhs> >
{
public:
typedef typename Lhs::Scalar Scalar;
@ -44,11 +44,7 @@ template<typename Lhs, typename Rhs> class Sum
assert(lhs.rows() == rhs.rows() && lhs.cols() == rhs.cols());
}
Sum(const Sum& other)
: m_lhs(other.m_lhs), m_rhs(other.m_rhs) {}
// assignments are illegal but we still want to intercept them and get clean compile errors
EIGEN_INHERIT_ASSIGNMENT_OPERATORS(Sum)
Sum(const Sum& other) : m_lhs(other.m_lhs), m_rhs(other.m_rhs) {}
private:
const Sum& _ref() const { return *this; }

7
src/Core/Util.h
View File

@ -124,4 +124,11 @@ enum AssertLevel
InternalDebugging = 2
};
//classes inheriting NoDefaultOperatorEquals don't generate a default operator=.
class NoDefaultOperatorEquals
{
private:
NoDefaultOperatorEquals& operator=(const NoDefaultOperatorEquals&);
};
#endif // EIGEN_UTIL_H

7
src/Core/Zero.h
View File

@ -26,8 +26,8 @@
#ifndef EIGEN_ZERO_H
#define EIGEN_ZERO_H
template<typename MatrixType> class Zero
: public MatrixBase<typename MatrixType::Scalar, Zero<MatrixType> >
template<typename MatrixType> class Zero : NoDefaultOperatorEquals,
public MatrixBase<typename MatrixType::Scalar, Zero<MatrixType> >
{
public:
typedef typename MatrixType::Scalar Scalar;
@ -41,9 +41,6 @@ template<typename MatrixType> class Zero
assert(rows > 0 && cols > 0);
}
// assignments are illegal but we still want to intercept them and get clean compile errors
EIGEN_INHERIT_ASSIGNMENT_OPERATORS(Zero)
private:
const Zero& _ref() const { return *this; }
int _rows() const { return m_rows; }