data.h File Reference

#include "gromacs/utility/real.h"

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Description

Common test data constants for SIMD, SIMD4 and scalar tests.

To avoid silent bugs due to double/float truncation if we ever use the wrong return type of routines, we want to use test data that fills all available bits in either single or double precision. The values themselves are meaningless. Note that the data is used to initialize the SIMD constants, which for technical (alignment) reasons in some compilers cannot be placed inside the text fixture classes. For that reason this data cannot go in the fixtures either.

Author

Erik Lindahl erik..nosp@m.lind.nosp@m.ahl@s.nosp@m.cili.nosp@m.felab.nosp@m..se

Variables
constexpr real	gmx::test::czero = 0.0
	zero
constexpr real	gmx::test::c0 = 0.3333333333333333
	test constant 0.0 + 1.0/3.0
constexpr real	gmx::test::c1 = 1.7142857142857144
	test constant 1.0 + 5.0/7.0
constexpr real	gmx::test::c2 = 2.6923076923076925
	test constant 2.0 + 9.0/13.0
constexpr real	gmx::test::c3 = 3.8947368421052633
	test constant 3.0 + 17.0/19.0
constexpr real	gmx::test::c4 = 4.793103448275862
	test constant 4.0 + 23.0/29.0
constexpr real	gmx::test::c5 = 5.837837837837838
	test constant 5.0 + 31.0/37.0
constexpr real	gmx::test::c6 = 6.953488372093023
	test constant 6.0 + 41.0/43.0
constexpr real	gmx::test::c7 = 7.886792452830189
	test constant 7.0 + 47.0/53.0
constexpr real	gmx::test::c8 = 8.967213114754099
	test constant 8.0 + 59.0/61.0