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Augment NumTraits with min/max_exponent().

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Replace usage of `std::numeric_limits<...>::min/max_exponent` in
codebase.  Also replaced some other `numeric_limits` usages in
affected tests with the `NumTraits` equivalent.

Fixes #2148
This commit is contained in:
Antonio Sanchez
2021-02-12 13:14:05 -08:00
committed by Rasmus Munk Larsen
parent 9fb7062440
commit 75ce9cd2a7
6 changed files with 74 additions and 54 deletions
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12
bench/bench_norm.cpp
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@@ -111,12 +111,12 @@ EIGEN_DONT_INLINE typename T::Scalar pblueNorm(const T& v)
int nbig, ibeta, it, iemin, iemax, iexp;
Scalar abig, eps;
nbig = std::numeric_limits<int>::max(); // largest integer
ibeta = std::numeric_limits<Scalar>::radix; //NumTraits<Scalar>::Base; // base for floating-point numbers
it = std::numeric_limits<Scalar>::digits; //NumTraits<Scalar>::Mantissa; // number of base-beta digits in mantissa
iemin = std::numeric_limits<Scalar>::min_exponent; // minimum exponent
iemax = std::numeric_limits<Scalar>::max_exponent; // maximum exponent
rbig = std::numeric_limits<Scalar>::max(); // largest floating-point number
nbig = NumTraits<int>::highest(); // largest integer
ibeta = std::numeric_limits<Scalar>::radix; // NumTraits<Scalar>::Base; // base for floating-point numbers
it = NumTraits<Scalar>::digits(); // NumTraits<Scalar>::Mantissa; // number of base-beta digits in mantissa
iemin = NumTraits<Scalar>::min_exponent(); // minimum exponent
iemax = NumTraits<Scalar>::max_exponent(); // maximum exponent
rbig = NumTraits<Scalar>::highest(); // largest floating-point number
// Check the basic machine-dependent constants.
if(iemin > 1 - 2*it || 1+it>iemax || (it==2 && ibeta<5)