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authorGravatar Benoit Steiner <benoit.steiner.goog@gmail.com>2016-10-05 18:48:55 -0700
committerGravatar Benoit Steiner <benoit.steiner.goog@gmail.com>2016-10-05 18:48:55 -0700
commit78b569f68540c5609388864bd805dcf21dd6a187 (patch)
tree0a5757bb11834d0109f99310f4493dfd63579901 /Eigen/src/Core/IO.h
parent9c2b6c049be19fd4c571b0df537169d277b26291 (diff)
parent4387433acf9cd2eab3713349163cd1e8905b5854 (diff)
Merged latest updates from trunk
Diffstat (limited to 'Eigen/src/Core/IO.h')
-rw-r--r--Eigen/src/Core/IO.h24
1 files changed, 5 insertions, 19 deletions
diff --git a/Eigen/src/Core/IO.h b/Eigen/src/Core/IO.h
index dfd9097cc..94e00f58b 100644
--- a/Eigen/src/Core/IO.h
+++ b/Eigen/src/Core/IO.h
@@ -125,32 +125,18 @@ DenseBase<Derived>::format(const IOFormat& fmt) const
namespace internal {
-template<typename Scalar, bool IsInteger>
-struct significant_decimals_default_impl
-{
- typedef typename NumTraits<Scalar>::Real RealScalar;
- static inline int run()
- {
- using std::ceil;
- using std::log;
- return cast<RealScalar,int>(ceil(-log(NumTraits<RealScalar>::epsilon())/log(RealScalar(10))));
- }
-};
-
+// NOTE: This helper is kept for backward compatibility with previous code specializing
+// this internal::significant_decimals_impl structure. In the future we should directly
+// call digits10() which has been introduced in July 2016 in 3.3.
template<typename Scalar>
-struct significant_decimals_default_impl<Scalar, true>
+struct significant_decimals_impl
{
static inline int run()
{
- return 0;
+ return NumTraits<Scalar>::digits10();
}
};
-template<typename Scalar>
-struct significant_decimals_impl
- : significant_decimals_default_impl<Scalar, NumTraits<Scalar>::IsInteger>
-{};
-
/** \internal
* print the matrix \a _m to the output stream \a s using the output format \a fmt */
template<typename Derived>