diff options
Diffstat (limited to 'include/mbgl')
-rw-r--r-- | include/mbgl/util/vec.hpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/mbgl/util/vec.hpp b/include/mbgl/util/vec.hpp index 83530a1798..a8bbd14b0f 100644 --- a/include/mbgl/util/vec.hpp +++ b/include/mbgl/util/vec.hpp @@ -105,6 +105,18 @@ struct vec3 { inline bool operator==(const vec3& rhs) const { return x == rhs.x && y == rhs.y && z == rhs.z; } + + template<typename U = T, typename std::enable_if<std::numeric_limits<U>::has_quiet_NaN, int>::type = 0> + inline operator bool() const { + return !std::isnan(x) && !std::isnan(y) && !std::isnan(z); + } + + template<typename U = T, typename std::enable_if<!std::numeric_limits<U>::has_quiet_NaN, int>::type = 0> + inline operator bool() const { + return x != std::numeric_limits<T>::min() + && y != std::numeric_limits<T>::min() + && z != std::numeric_limits<T>::min(); + } }; template <typename T = double> @@ -117,6 +129,19 @@ struct vec4 { inline bool operator==(const vec4& rhs) const { return x == rhs.x && y == rhs.y && z == rhs.z && w == rhs.w; } + + template<typename U = T, typename std::enable_if<std::numeric_limits<U>::has_quiet_NaN, int>::type = 0> + inline operator bool() const { + return !std::isnan(x) && !std::isnan(y) && !std::isnan(z) && !std::isnan(w); + } + + template<typename U = T, typename std::enable_if<!std::numeric_limits<U>::has_quiet_NaN, int>::type = 0> + inline operator bool() const { + return x != std::numeric_limits<T>::min() + && y != std::numeric_limits<T>::min() + && z != std::numeric_limits<T>::min() + && w != std::numeric_limits<T>::min(); + } }; |