| 1 | #include "../common.hpp" |
| 2 | #include "../ext/scalar_int_sized.hpp" |
| 3 | #include "../ext/scalar_uint_sized.hpp" |
| 4 | #include "../detail/type_float.hpp" |
| 5 | |
| 6 | namespace glm |
| 7 | { |
| 8 | template<typename genType> |
| 9 | GLM_FUNC_QUALIFIER GLM_CONSTEXPR bool equal(genType const& x, genType const& y, genType const& epsilon) |
| 10 | { |
| 11 | return abs(x - y) <= epsilon; |
| 12 | } |
| 13 | |
| 14 | template<typename genType> |
| 15 | GLM_FUNC_QUALIFIER GLM_CONSTEXPR bool notEqual(genType const& x, genType const& y, genType const& epsilon) |
| 16 | { |
| 17 | return abs(x - y) > epsilon; |
| 18 | } |
| 19 | |
| 20 | template<typename genType> |
| 21 | GLM_FUNC_QUALIFIER GLM_CONSTEXPR bool equal(genType const& x, genType const& y, int MaxULPs) |
| 22 | { |
| 23 | detail::float_t<genType> const a(x); |
| 24 | detail::float_t<genType> const b(y); |
| 25 | |
| 26 | // Different signs means they do not match. |
| 27 | if(a.negative() != b.negative()) |
| 28 | return false; |
| 29 | |
| 30 | // Find the difference in ULPs. |
| 31 | typename detail::float_t<genType>::int_type const DiffULPs = abs(a.i - b.i); |
| 32 | return DiffULPs <= MaxULPs; |
| 33 | } |
| 34 | |
| 35 | template<typename genType> |
| 36 | GLM_FUNC_QUALIFIER GLM_CONSTEXPR bool notEqual(genType const& x, genType const& y, int ULPs) |
| 37 | { |
| 38 | return !equal(x, y, ULPs); |
| 39 | } |
| 40 | }//namespace glm |