edm::soahelper Namespace Reference

Classes
struct	Aligned
struct	AlignmentHelper
struct	AlignmentHelper< Aligned< T, ALIGNMENT > >
struct	arg_puller
struct	arg_puller< I, I, Ret, F, Args... >
struct	arg_puller< I, J, Ret, F, Args... >
struct	SoATupleHelper
struct	SoATupleHelper< 0, Args... >

Functions
constexpr unsigned int	padding_needed (size_t iSizeSoFar, unsigned int iBoundary)

Function Documentation

padding_needed()

constexpr unsigned int edm::soahelper::padding_needed ( size_t  iSizeSoFar, unsigned int  iBoundary  )

constexpr

Given a leading memory size, iSizeSoFar, and an alignment boundary requirement of iBoundary, returns how much additional memory padding is needed. This function assumes that when iSizeSoFar==0 that we are already properly aligned.

Definition at line 33 of file SoATupleHelper.h.

                                                                                     {
      return (iBoundary - iSizeSoFar % iBoundary) % iBoundary;
    }

Referenced by edm::soahelper::SoATupleHelper< I, Args >::copyToNew(), edm::soahelper::SoATupleHelper< I, Args >::moveToNew(), and edm::soahelper::SoATupleHelper< I, Args >::spaceNeededFor().