gmx::StaticLog2< n > Struct Template Reference

#include <gromacs/math/functions.h>

Description

template<std::uint64_t n>
struct gmx::StaticLog2< n >

Evaluate log2(n) for integer n statically at compile time.

Use as staticLog2<n>::value, where n must be a positive integer. Negative n will be reinterpreted as the corresponding unsigned integer, and you will get a compile-time error if n==0. The calculation is done by recursively dividing n by 2 (until it is 1), and incrementing the result by 1 in each step.

Template Parameters

n	Value to recursively calculate log2(n) for

Static Public Attributes
static const int	value
	Variable value used for recursive static calculation of Log2(int) More...

Member Data Documentation

template<std::uint64_t n>

const int gmx::StaticLog2< n >::value

static

Initial value:

= StaticLog2<n / 2>::value
                             + 1

Variable value used for recursive static calculation of Log2(int)

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The documentation for this struct was generated from the following file:

• api/legacy/include/gromacs/math/functions.h