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std::isfinite is non standard

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This commit is contained in:
Gael Guennebaud 2012-01-23 21:49:00 +01:00
parent ee9f3e34b0
commit 0d03492e1e
2 changed files with 13 additions and 1 deletions
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3
Eigen/src/Cholesky/LDLT.h
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@ -354,6 +354,7 @@ template<> struct ldlt_inplace<Lower>
template<typename MatrixType, typename WDerived> template<typename MatrixType, typename WDerived>
static bool updateInPlace(MatrixType& mat, MatrixBase<WDerived>& w, typename MatrixType::RealScalar sigma=1) static bool updateInPlace(MatrixType& mat, MatrixBase<WDerived>& w, typename MatrixType::RealScalar sigma=1)
{ {
using internal::isfinite;
typedef typename MatrixType::Scalar Scalar; typedef typename MatrixType::Scalar Scalar;
typedef typename MatrixType::RealScalar RealScalar; typedef typename MatrixType::RealScalar RealScalar;
typedef typename MatrixType::Index Index; typedef typename MatrixType::Index Index;
@ -367,7 +368,7 @@ template<> struct ldlt_inplace<Lower>
for (Index j = 0; j < size; j++) for (Index j = 0; j < size; j++)
{ {
// Check for termination due to an original decomposition of low-rank // Check for termination due to an original decomposition of low-rank
if (!std::isfinite(alpha)) if (!isfinite(alpha))
break; break;
// Update the diagonal terms // Update the diagonal terms

11
Eigen/src/Core/MathFunctions.h
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@ -837,6 +837,17 @@ template<> struct scalar_fuzzy_impl<bool>
}; };
/****************************************************************************
* Special functions *
****************************************************************************/
// std::isfinite is non standard, so let's define our own version,
// even though it is not very efficient.
template<typename T> bool isfinite(const T& x)
{
return x<NumTraits<T>::highest() && x>NumTraits<T>::lowest();
}
} // end namespace internal } // end namespace internal
#endif // EIGEN_MATHFUNCTIONS_H #endif // EIGEN_MATHFUNCTIONS_H