GitHub-Proxy/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2025-08-08 09:49:03 +08:00
Code Issues Packages Projects Releases Wiki Activity

add first_multiple helper function

Browse Source
This commit is contained in:
Gael Guennebaud 2012-10-30 16:27:52 +01:00
parent 90fcaf11cf
commit aa858cb43a
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
Eigen/src/Core/util/Memory.h
View File

@ -470,6 +470,13 @@ static inline Index first_aligned(const Scalar* array, Index size)
} }
} }
/** \internal Returns the smallest integer multiple of \a base and greater or equal to \a size
*/
template<typename Index>
inline static Index first_multiple(Index size, Index base)
{
return ((size+base-1)/base)*base;
}
// std::copy is much slower than memcpy, so let's introduce a smart_copy which // std::copy is much slower than memcpy, so let's introduce a smart_copy which
// use memcpy on trivial types, i.e., on types that does not require an initialization ctor. // use memcpy on trivial types, i.e., on types that does not require an initialization ctor.