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NumTraits.h:

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For the values 'ReadCost, AddCost and MulCost', information about value Eigen::HugeCost
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Rafael Guglielmetti 2016-12-16 09:07:12 +00:00
parent 7d5303a083
commit 8f11df2667
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Eigen/src/Core/NumTraits.h
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@ -71,7 +71,7 @@ struct default_digits10_impl<T,false,true> // Integer
* and to \c 0 otherwise.
* \li Enum values ReadCost, AddCost and MulCost representing a rough estimate of the number of CPU cycles needed
* to by move / add / mul instructions respectively, assuming the data is already stored in CPU registers.
* Stay vague here. No need to do architecture-specific stuff.
* Stay vague here. No need to do architecture-specific stuff. If you don't know what this means, just use \c Eigen::HugeCost.
* \li An enum value \a IsSigned. It is equal to \c 1 if \a T is a signed type and to 0 if \a T is unsigned.
* \li An enum value \a RequireInitialization. It is equal to \c 1 if the constructor of the numeric type \a T must
* be called, and to 0 if it is safe not to call it. Default is 0 if \a T is an arithmetic type, and 1 otherwise.