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lol
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Use [[nodiscard]] in a lot of places. 

This will let us detect problems with unused return values. For instance,
if you don’t remember that normalize(q) returns a pointer and expect it
to modify the object, you’ll get this warning:

warning: ignoring return value of function declared with 'nodiscard' attribute [-Wunused-result]
    quat q(1,2,3,4);  normalize(q);
                      ^~~~~~~~~ ~
legacy
Sam Hocevar 7 年之前
父節點
9981cf4ce9
當前提交
fe99aca67d
共有 17 個文件被更改，包括 286 次插入 和 281 次删除
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  1. +1
    -1
      src/lol/base/array.h
  2. +7
    -3
      src/lol/base/features.h
  3. +9
    -9
      src/lol/base/string.h
  4. +1
    -1
      src/lol/gpu/shader.h
  5. +3
    -3
      src/lol/image/image.h
  6. +1
    -1
      src/lol/math/arraynd.h
  7. +1
    -1
      src/lol/math/bigint.h
  8. +132
    -132
      src/lol/math/functions.h
  9. +16
    -16
      src/lol/math/geometry.h
  10. +31
    -31
      src/lol/math/half.h
  11. +9
    -9
      src/lol/math/matrix.h
  12. +4
    -4
      src/lol/math/ops.h
  13. +4
    -4
      src/lol/math/polynomial.h
  14. +14
    -14
      src/lol/math/rand.h
  15. +28
    -27
      src/lol/math/real.h
  16. +16
    -16
      src/lol/math/transform.h
  17. +9
    -9
      src/lol/math/vector.h

+ 1
- 1
src/lol/base/array.h 查看文件

@@ -50,7 +50,7 @@ enum class SortAlgorithm : uint8_t
* m_count are allocated. The rest is uninitialised memory.
*/

template<typename T, typename ARRAY> class array_base
template<typename T, typename ARRAY> class LOL_ATTR_NODISCARD array_base
{
public:
typedef T element_t;


+ 7
- 3
src/lol/base/features.h 查看文件

@@ -53,11 +53,17 @@

#undef LOL_FEATURE_CXX17_ATTRIBUTE_NODISCARD

/* Features detected through __has_cpp_attribute */
#ifdef __has_cpp_attribute
# if __has_cpp_attribute(deprecated)
# define LOL_FEATURE_CXX17_ATTRIBUTE_NODISCARD 1
# endif
#endif

/* Features supported by GCC */
#if defined __GNUC__
# define LOL_FEATURE_CXX11_UNRESTRICTED_UNIONS 1
# define LOL_FEATURE_CXX11_INHERIT_CONSTRUCTORS 1
# define LOL_FEATURE_CXX17_ATTRIBUTE_NODISCARD 1
# if defined(__GXX_EXPERIMENTAL_CXX0X) || __cplusplus >= 201103L
# define LOL_FEATURE_CXX11_CONSTEXPR 1
# define LOL_FEATURE_CXX11_ISNAN 1
@@ -75,7 +81,6 @@
# define LOL_FEATURE_CXX11_UNRESTRICTED_UNIONS 1
# define LOL_FEATURE_CXX11_INHERIT_CONSTRUCTORS 1
# define LOL_FEATURE_CXX11_ARRAY_INITIALIZERS 1
# define LOL_FEATURE_CXX17_ATTRIBUTE_NODISCARD 1
# if __has_feature(cxx_constexpr)
# define LOL_FEATURE_CXX11_CONSTEXPR 1
# endif
@@ -104,7 +109,6 @@
/* Still unsupported as of VS 2015 (TODO: check VS2017) */
# undef LOL_FEATURE_CXX11_ARRAY_INITIALIZERS
# undef LOL_FEATURE_CXX11_CONSTEXPR
# undef LOL_FEATURE_CXX17_ATTRIBUTE_NODISCARD
#endif




+ 9
- 9
src/lol/base/string.h 查看文件

@@ -28,19 +28,19 @@
namespace lol
{

class String : protected array<char>
class LOL_ATTR_NODISCARD String : protected array<char>
{
private:
typedef array<char> super;

public:
inline LOL_ATTR_NODISCARD String()
inline String()
: super()
{
push('\0');
}

inline LOL_ATTR_NODISCARD String(char const *str)
inline String(char const *str)
: super()
{
using namespace std;
@@ -49,7 +49,7 @@ public:
memcpy(&(*this)[0], str, count() + 1);
}

inline LOL_ATTR_NODISCARD String(char const *str, int item_count)
inline String(char const *str, int item_count)
: super()
{
using namespace std;
@@ -59,7 +59,7 @@ public:
((super &)*this)[item_count] = '\0';
}

inline LOL_ATTR_NODISCARD String(String const &s)
inline String(String const &s)
: super((super const &)s)
{
}
@@ -268,13 +268,13 @@ public:
return true;
}

inline LOL_ATTR_NODISCARD String operator +(String const &s) const
inline String operator +(String const &s) const
{
String ret(*this);
return ret += s;
}

inline LOL_ATTR_NODISCARD String operator +(char c) const
inline String operator +(char c) const
{
String ret(*this);
return ret += c;
@@ -338,12 +338,12 @@ public:
static String vformat(char const *format, va_list ap);
};

inline LOL_ATTR_NODISCARD String operator +(char c, String const &s)
inline String operator +(char c, String const &s)
{
return String() + c + s;
}

inline LOL_ATTR_NODISCARD String operator +(char const *sz, String const &s)
inline String operator +(char const *sz, String const &s)
{
return String(sz) + s;
}


+ 1
- 1
src/lol/gpu/shader.h 查看文件

@@ -36,7 +36,6 @@ namespace lol
//VertexUsageBase -------------------------------------------------------------
struct VertexUsageBase : public StructSafeEnum
{

enum Type
{
Position,
@@ -56,6 +55,7 @@ struct VertexUsageBase : public StructSafeEnum
Sample,
MAX,
};

protected:
virtual bool BuildEnumMap(map<int64_t, String>& enum_map)
{


+ 3
- 3
src/lol/image/image.h 查看文件

@@ -91,13 +91,13 @@ public:
void SetWrap(WrapMode wrap_x, WrapMode wrap_y);

/* Lock continuous arrays of pixels for writing */
template<PixelFormat T> typename PixelType<T>::type *lock();
void *lock();
template<PixelFormat T> LOL_ATTR_NODISCARD typename PixelType<T>::type *lock();
LOL_ATTR_NODISCARD void *lock();
void unlock(void const *pixels);

/* Lock 2D arrays of pixels for writing */
template<PixelFormat T>
inline array2d<typename PixelType<T>::type> &lock2d()
LOL_ATTR_NODISCARD inline array2d<typename PixelType<T>::type> &lock2d()
{
/* Hack: this indirection is needed because of a Visual Studio ICE */
return *(array2d<typename PixelType<T>::type> *)lock2d_helper(T);


+ 1
- 1
src/lol/math/arraynd.h 查看文件

@@ -95,7 +95,7 @@ private:


template<int N, typename... T>
class arraynd : protected array<T...>
class LOL_ATTR_NODISCARD arraynd : protected array<T...>
{
public:
typedef array<T...> super;


+ 1
- 1
src/lol/math/bigint.h 查看文件

@@ -40,7 +40,7 @@ namespace lol
*/

template<unsigned int N = 16, typename T = uint32_t>
class bigint
class LOL_ATTR_NODISCARD bigint
{
static int const bits_per_digit = sizeof(T) * 8 - 1;
static T const digit_mask = ~((T)1 << bits_per_digit);


+ 132
- 132
src/lol/math/functions.h 查看文件

@@ -34,45 +34,45 @@ namespace lol
#undef max

/* Standard cmath functions */
static inline double sqrt(double const &x) { return std::sqrt(x); }
static inline float sqrt(float const &x) { return std::sqrt(x); }
static inline double cbrt(double const &x) { return std::cbrt(x); }
static inline float cbrt(float const &x) { return std::cbrt(x); }
static inline double exp(double const &x) { return std::exp(x); }
static inline float exp(float const &x) { return std::exp(x); }
static inline double sin(double const &x) { return std::sin(x); }
static inline double cos(double const &x) { return std::cos(x); }
static inline double tan(double const &x) { return std::tan(x); }
static inline float sin(float const &x) { return std::sin(x); }
static inline float cos(float const &x) { return std::cos(x); }
static inline float tan(float const &x) { return std::tan(x); }
static inline double asin(double const &x) { return std::asin(x); }
static inline double acos(double const &x) { return std::acos(x); }
static inline double atan(double const &x) { return std::atan(x); }
static inline float asin(float const &x) { return std::asin(x); }
static inline float acos(float const &x) { return std::acos(x); }
static inline float atan(float const &x) { return std::atan(x); }
static inline double atan2(double const &y, double const &x)
LOL_ATTR_NODISCARD static inline double sqrt(double const &x) { return std::sqrt(x); }
LOL_ATTR_NODISCARD static inline float sqrt(float const &x) { return std::sqrt(x); }
LOL_ATTR_NODISCARD static inline double cbrt(double const &x) { return std::cbrt(x); }
LOL_ATTR_NODISCARD static inline float cbrt(float const &x) { return std::cbrt(x); }
LOL_ATTR_NODISCARD static inline double exp(double const &x) { return std::exp(x); }
LOL_ATTR_NODISCARD static inline float exp(float const &x) { return std::exp(x); }
LOL_ATTR_NODISCARD static inline double sin(double const &x) { return std::sin(x); }
LOL_ATTR_NODISCARD static inline double cos(double const &x) { return std::cos(x); }
LOL_ATTR_NODISCARD static inline double tan(double const &x) { return std::tan(x); }
LOL_ATTR_NODISCARD static inline float sin(float const &x) { return std::sin(x); }
LOL_ATTR_NODISCARD static inline float cos(float const &x) { return std::cos(x); }
LOL_ATTR_NODISCARD static inline float tan(float const &x) { return std::tan(x); }
LOL_ATTR_NODISCARD static inline double asin(double const &x) { return std::asin(x); }
LOL_ATTR_NODISCARD static inline double acos(double const &x) { return std::acos(x); }
LOL_ATTR_NODISCARD static inline double atan(double const &x) { return std::atan(x); }
LOL_ATTR_NODISCARD static inline float asin(float const &x) { return std::asin(x); }
LOL_ATTR_NODISCARD static inline float acos(float const &x) { return std::acos(x); }
LOL_ATTR_NODISCARD static inline float atan(float const &x) { return std::atan(x); }
LOL_ATTR_NODISCARD static inline double atan2(double const &y, double const &x)
{
return std::atan2(y, x);
}

static inline float atan2(float const &y, float const &x)
LOL_ATTR_NODISCARD static inline float atan2(float const &y, float const &x)
{
return std::atan2(y, x);
}

static inline double pow(double const &x, double const &y)
LOL_ATTR_NODISCARD static inline double pow(double const &x, double const &y)
{
return std::pow(x, y);
}

static inline float pow(float const &x, float const &y)
LOL_ATTR_NODISCARD static inline float pow(float const &x, float const &y)
{
return std::pow(x, y);
}
@@ -91,180 +91,180 @@ static inline void sincos(float const &x, float *s, float *c)
}

/* Inherited from GLSL */
static inline float degrees(float radians)
LOL_ATTR_NODISCARD static inline float degrees(float radians)
{
return radians * (180.0f / F_PI);
}

static inline double degrees(double radians)
LOL_ATTR_NODISCARD static inline double degrees(double radians)
{
return radians * (180.0 / D_PI);
}

static inline ldouble degrees(ldouble radians)
LOL_ATTR_NODISCARD static inline ldouble degrees(ldouble radians)
{
return radians * (180.0L / LD_PI);
}

static inline float radians(float degrees)
LOL_ATTR_NODISCARD static inline float radians(float degrees)
{
return degrees * (F_PI / 180.0f);
}

static inline double radians(double degrees)
LOL_ATTR_NODISCARD static inline double radians(double degrees)
{
return degrees * (D_PI / 180.0);
}

static inline ldouble radians(ldouble degrees)
LOL_ATTR_NODISCARD static inline ldouble radians(ldouble degrees)
{
return degrees * (LD_PI / 180.0L);
}

/* The integer versions return floating point values. This avoids nasty
* surprises when calling radians(180) instead of radians(180.0). */
static inline float degrees(int8_t x) { return degrees(float(x)); }
static inline float degrees(uint8_t x) { return degrees(float(x)); }
static inline float degrees(int16_t x) { return degrees(float(x)); }
static inline float degrees(uint16_t x) { return degrees(float(x)); }
static inline double degrees(int32_t x) { return degrees(double(x)); }
static inline double degrees(uint32_t x) { return degrees(double(x)); }
static inline ldouble degrees(int64_t x) { return degrees(ldouble(x)); }
static inline ldouble degrees(uint64_t x) { return degrees(ldouble(x)); }
static inline float radians(int8_t x) { return radians(float(x)); }
static inline float radians(uint8_t x) { return radians(float(x)); }
static inline float radians(int16_t x) { return radians(float(x)); }
static inline float radians(uint16_t x) { return radians(float(x)); }
static inline double radians(int32_t x) { return radians(double(x)); }
static inline double radians(uint32_t x) { return radians(double(x)); }
static inline ldouble radians(int64_t x) { return radians(ldouble(x)); }
static inline ldouble radians(uint64_t x) { return radians(ldouble(x)); }
static inline float mix(float const &a, float const &b, float const &x)
LOL_ATTR_NODISCARD static inline float degrees(int8_t x) { return degrees(float(x)); }
LOL_ATTR_NODISCARD static inline float degrees(uint8_t x) { return degrees(float(x)); }
LOL_ATTR_NODISCARD static inline float degrees(int16_t x) { return degrees(float(x)); }
LOL_ATTR_NODISCARD static inline float degrees(uint16_t x) { return degrees(float(x)); }
LOL_ATTR_NODISCARD static inline double degrees(int32_t x) { return degrees(double(x)); }
LOL_ATTR_NODISCARD static inline double degrees(uint32_t x) { return degrees(double(x)); }
LOL_ATTR_NODISCARD static inline ldouble degrees(int64_t x) { return degrees(ldouble(x)); }
LOL_ATTR_NODISCARD static inline ldouble degrees(uint64_t x) { return degrees(ldouble(x)); }
LOL_ATTR_NODISCARD static inline float radians(int8_t x) { return radians(float(x)); }
LOL_ATTR_NODISCARD static inline float radians(uint8_t x) { return radians(float(x)); }
LOL_ATTR_NODISCARD static inline float radians(int16_t x) { return radians(float(x)); }
LOL_ATTR_NODISCARD static inline float radians(uint16_t x) { return radians(float(x)); }
LOL_ATTR_NODISCARD static inline double radians(int32_t x) { return radians(double(x)); }
LOL_ATTR_NODISCARD static inline double radians(uint32_t x) { return radians(double(x)); }
LOL_ATTR_NODISCARD static inline ldouble radians(int64_t x) { return radians(ldouble(x)); }
LOL_ATTR_NODISCARD static inline ldouble radians(uint64_t x) { return radians(ldouble(x)); }
LOL_ATTR_NODISCARD static inline float mix(float const &a, float const &b, float const &x)
{
return a + (b - a) * x;
}

static inline double mix(double const &a, double const &b, double const &x)
LOL_ATTR_NODISCARD static inline double mix(double const &a, double const &b, double const &x)
{
return a + (b - a) * x;
}

static inline ldouble mix(ldouble const &a, ldouble const &b, ldouble const &x)
LOL_ATTR_NODISCARD static inline ldouble mix(ldouble const &a, ldouble const &b, ldouble const &x)
{
return a + (b - a) * x;
}

/* Inherited from HLSL */
static inline float lerp(float const &a, float const &b, float const &x)
LOL_ATTR_NODISCARD static inline float lerp(float const &a, float const &b, float const &x)
{
return mix(a, b, x);
}

static inline double lerp(double const &a, double const &b, double const &x)
LOL_ATTR_NODISCARD static inline double lerp(double const &a, double const &b, double const &x)
{
return mix(a, b, x);
}

static inline ldouble lerp(ldouble const &a, ldouble const &b, ldouble const &x)
LOL_ATTR_NODISCARD static inline ldouble lerp(ldouble const &a, ldouble const &b, ldouble const &x)
{
return mix(a, b, x);
}

/* These accelerated functions will be merged into the above, one day */
double lol_sin(double);
double lol_cos(double);
double lol_tan(double);
LOL_ATTR_NODISCARD double lol_sin(double);
LOL_ATTR_NODISCARD double lol_cos(double);
LOL_ATTR_NODISCARD double lol_tan(double);
void lol_sincos(double, double*, double*);
void lol_sincos(float, float*, float*);
double lol_asin(double);
double lol_acos(double);
double lol_atan(double);
double lol_atan2(double, double);
LOL_ATTR_NODISCARD double lol_asin(double);
LOL_ATTR_NODISCARD double lol_acos(double);
LOL_ATTR_NODISCARD double lol_atan(double);
LOL_ATTR_NODISCARD double lol_atan2(double, double);

/* C++ doesn't define abs() and fmod() for all types; we add these for
* convenience to avoid adding complexity to vector.h. */
static inline int8_t abs(int8_t x) { return std::abs(x); }
static inline uint8_t abs(uint8_t x) { return x; }
static inline int16_t abs(int16_t x) { return std::abs(x); }
static inline uint16_t abs(uint16_t x) { return x; }
static inline int32_t abs(int32_t x) { return std::abs(x); }
static inline uint32_t abs(uint32_t x) { return x; }
LOL_ATTR_NODISCARD static inline int8_t abs(int8_t x) { return std::abs(x); }
LOL_ATTR_NODISCARD static inline uint8_t abs(uint8_t x) { return x; }
LOL_ATTR_NODISCARD static inline int16_t abs(int16_t x) { return std::abs(x); }
LOL_ATTR_NODISCARD static inline uint16_t abs(uint16_t x) { return x; }
LOL_ATTR_NODISCARD static inline int32_t abs(int32_t x) { return std::abs(x); }
LOL_ATTR_NODISCARD static inline uint32_t abs(uint32_t x) { return x; }
#if defined __native_client__ || defined __ANDROID__
/* The pepper 19 toolchain doesn't provide abs() for long long int. */
static inline int64_t abs(int64_t x) { return x > 0 ? x : -x; }
LOL_ATTR_NODISCARD static inline int64_t abs(int64_t x) { return x > 0 ? x : -x; }
#else
static inline int64_t abs(int64_t x) { return std::abs(x); }
LOL_ATTR_NODISCARD static inline int64_t abs(int64_t x) { return std::abs(x); }
#endif
static inline uint64_t abs(uint64_t x) { return x; }
static inline float abs(float x) { return std::abs(x); }
static inline double abs(double x) { return std::abs(x); }
static inline ldouble abs(ldouble x) { return std::abs(x); }
static inline uint8_t fmod(uint8_t x, uint8_t y) { return x % y; }
static inline int8_t fmod(int8_t x, int8_t y) { return x % y; }
static inline uint16_t fmod(uint16_t x, uint16_t y) { return x % y; }
static inline int16_t fmod(int16_t x, int16_t y) { return x % y; }
static inline uint32_t fmod(uint32_t x, uint32_t y) { return x % y; }
static inline int32_t fmod(int32_t x, int32_t y) { return x % y; }
static inline uint64_t fmod(uint64_t x, uint64_t y) { return x % y; }
static inline int64_t fmod(int64_t x, int64_t y) { return x % y; }
static inline float fmod(float x, float y) { return std::fmod(x, y); }
static inline double fmod(double x, double y) { return std::fmod(x, y); }
static inline ldouble fmod(ldouble x, ldouble y) { return std::fmod(x, y); }
static inline uint8_t floor(uint8_t x) { return x; }
static inline int8_t floor(int8_t x) { return x; }
static inline uint16_t floor(uint16_t x) { return x; }
static inline int16_t floor(int16_t x) { return x; }
static inline uint32_t floor(uint32_t x) { return x; }
static inline int32_t floor(int32_t x) { return x; }
static inline uint64_t floor(uint64_t x) { return x; }
static inline int64_t floor(int64_t x) { return x; }
static inline float floor(float x) { return std::floor(x); }
static inline double floor(double x) { return std::floor(x); }
static inline ldouble floor(ldouble x) { return std::floor(x); }
static inline uint8_t ceil(uint8_t x) { return x; }
static inline int8_t ceil(int8_t x) { return x; }
static inline uint16_t ceil(uint16_t x) { return x; }
static inline int16_t ceil(int16_t x) { return x; }
static inline uint32_t ceil(uint32_t x) { return x; }
static inline int32_t ceil(int32_t x) { return x; }
static inline uint64_t ceil(uint64_t x) { return x; }
static inline int64_t ceil(int64_t x) { return x; }
static inline float ceil(float x) { return std::ceil(x); }
static inline double ceil(double x) { return std::ceil(x); }
static inline ldouble ceil(ldouble x) { return std::ceil(x); }
static inline uint8_t round(uint8_t x) { return x; }
static inline int8_t round(int8_t x) { return x; }
static inline uint16_t round(uint16_t x) { return x; }
static inline int16_t round(int16_t x) { return x; }
static inline uint32_t round(uint32_t x) { return x; }
static inline int32_t round(int32_t x) { return x; }
static inline uint64_t round(uint64_t x) { return x; }
static inline int64_t round(int64_t x) { return x; }
static inline float round(float x) { return std::round(x); }
static inline double round(double x) { return std::round(x); }
static inline ldouble round(ldouble x) { return std::round(x); }
LOL_ATTR_NODISCARD static inline uint64_t abs(uint64_t x) { return x; }
LOL_ATTR_NODISCARD static inline float abs(float x) { return std::abs(x); }
LOL_ATTR_NODISCARD static inline double abs(double x) { return std::abs(x); }
LOL_ATTR_NODISCARD static inline ldouble abs(ldouble x) { return std::abs(x); }
LOL_ATTR_NODISCARD static inline uint8_t fmod(uint8_t x, uint8_t y) { return x % y; }
LOL_ATTR_NODISCARD static inline int8_t fmod(int8_t x, int8_t y) { return x % y; }
LOL_ATTR_NODISCARD static inline uint16_t fmod(uint16_t x, uint16_t y) { return x % y; }
LOL_ATTR_NODISCARD static inline int16_t fmod(int16_t x, int16_t y) { return x % y; }
LOL_ATTR_NODISCARD static inline uint32_t fmod(uint32_t x, uint32_t y) { return x % y; }
LOL_ATTR_NODISCARD static inline int32_t fmod(int32_t x, int32_t y) { return x % y; }
LOL_ATTR_NODISCARD static inline uint64_t fmod(uint64_t x, uint64_t y) { return x % y; }
LOL_ATTR_NODISCARD static inline int64_t fmod(int64_t x, int64_t y) { return x % y; }
LOL_ATTR_NODISCARD static inline float fmod(float x, float y) { return std::fmod(x, y); }
LOL_ATTR_NODISCARD static inline double fmod(double x, double y) { return std::fmod(x, y); }
LOL_ATTR_NODISCARD static inline ldouble fmod(ldouble x, ldouble y) { return std::fmod(x, y); }
LOL_ATTR_NODISCARD static inline uint8_t floor(uint8_t x) { return x; }
LOL_ATTR_NODISCARD static inline int8_t floor(int8_t x) { return x; }
LOL_ATTR_NODISCARD static inline uint16_t floor(uint16_t x) { return x; }
LOL_ATTR_NODISCARD static inline int16_t floor(int16_t x) { return x; }
LOL_ATTR_NODISCARD static inline uint32_t floor(uint32_t x) { return x; }
LOL_ATTR_NODISCARD static inline int32_t floor(int32_t x) { return x; }
LOL_ATTR_NODISCARD static inline uint64_t floor(uint64_t x) { return x; }
LOL_ATTR_NODISCARD static inline int64_t floor(int64_t x) { return x; }
LOL_ATTR_NODISCARD static inline float floor(float x) { return std::floor(x); }
LOL_ATTR_NODISCARD static inline double floor(double x) { return std::floor(x); }
LOL_ATTR_NODISCARD static inline ldouble floor(ldouble x) { return std::floor(x); }
LOL_ATTR_NODISCARD static inline uint8_t ceil(uint8_t x) { return x; }
LOL_ATTR_NODISCARD static inline int8_t ceil(int8_t x) { return x; }
LOL_ATTR_NODISCARD static inline uint16_t ceil(uint16_t x) { return x; }
LOL_ATTR_NODISCARD static inline int16_t ceil(int16_t x) { return x; }
LOL_ATTR_NODISCARD static inline uint32_t ceil(uint32_t x) { return x; }
LOL_ATTR_NODISCARD static inline int32_t ceil(int32_t x) { return x; }
LOL_ATTR_NODISCARD static inline uint64_t ceil(uint64_t x) { return x; }
LOL_ATTR_NODISCARD static inline int64_t ceil(int64_t x) { return x; }
LOL_ATTR_NODISCARD static inline float ceil(float x) { return std::ceil(x); }
LOL_ATTR_NODISCARD static inline double ceil(double x) { return std::ceil(x); }
LOL_ATTR_NODISCARD static inline ldouble ceil(ldouble x) { return std::ceil(x); }
LOL_ATTR_NODISCARD static inline uint8_t round(uint8_t x) { return x; }
LOL_ATTR_NODISCARD static inline int8_t round(int8_t x) { return x; }
LOL_ATTR_NODISCARD static inline uint16_t round(uint16_t x) { return x; }
LOL_ATTR_NODISCARD static inline int16_t round(int16_t x) { return x; }
LOL_ATTR_NODISCARD static inline uint32_t round(uint32_t x) { return x; }
LOL_ATTR_NODISCARD static inline int32_t round(int32_t x) { return x; }
LOL_ATTR_NODISCARD static inline uint64_t round(uint64_t x) { return x; }
LOL_ATTR_NODISCARD static inline int64_t round(int64_t x) { return x; }
LOL_ATTR_NODISCARD static inline float round(float x) { return std::round(x); }
LOL_ATTR_NODISCARD static inline double round(double x) { return std::round(x); }
LOL_ATTR_NODISCARD static inline ldouble round(ldouble x) { return std::round(x); }

#define LOL_GENERIC_FUNC(T) \
static inline T sq(T x) { return x * x; } \
static inline T fract(T x) { return x - lol::floor(x); } \
static inline T min(T x, T y) { return std::min(x, y); } \
static inline T max(T x, T y) { return std::max(x, y); } \
static inline T clamp(T x, T y, T z) { return min(max(x, y), z); } \
static inline T saturate(T x) { return min(max(x, (T)0), (T)1); }
LOL_ATTR_NODISCARD static inline T sq(T x) { return x * x; } \
LOL_ATTR_NODISCARD static inline T fract(T x) { return x - lol::floor(x); } \
LOL_ATTR_NODISCARD static inline T min(T x, T y) { return std::min(x, y); } \
LOL_ATTR_NODISCARD static inline T max(T x, T y) { return std::max(x, y); } \
LOL_ATTR_NODISCARD static inline T clamp(T x, T y, T z) { return min(max(x, y), z); } \
LOL_ATTR_NODISCARD static inline T saturate(T x) { return min(max(x, (T)0), (T)1); }

#define LOL_GENERIC_FUNC_SIGNED(T) \
LOL_GENERIC_FUNC(T) \
static inline T sign(T x) { return (T)(((T)0 < x) - (x < (T)0)); }
LOL_ATTR_NODISCARD static inline T sign(T x) { return (T)(((T)0 < x) - (x < (T)0)); }

#define LOL_GENERIC_FUNC_UNSIGNED(T) \
LOL_GENERIC_FUNC(T) \
static inline T sign(T x) { return (T)((T)0 < x); }
LOL_ATTR_NODISCARD static inline T sign(T x) { return (T)((T)0 < x); }

LOL_GENERIC_FUNC_UNSIGNED(uint8_t)
LOL_GENERIC_FUNC_SIGNED(int8_t)


+ 16
- 16
src/lol/math/geometry.h 查看文件

@@ -29,7 +29,7 @@ namespace lol
{

//AxisBase --------------------------------------------------------------------
struct AxisBase : public StructSafeEnum
struct AxisBase : public StructSafeEnum
{
enum Type
{
@@ -90,7 +90,7 @@ T_(box_t<, C_ 4>, box4)
#undef T_

template<typename T, int N>
struct box_t
struct LOL_ATTR_NODISCARD box_t
{
inline box_t()
: aa(vec_t<T, N>(T(0))),
@@ -153,12 +153,12 @@ struct box_t
return *this = *this * s;
}

bool operator ==(box_t<T,N> const &box) const
LOL_ATTR_NODISCARD bool operator ==(box_t<T,N> const &box) const
{
return aa == box.aa && bb == box.bb;
}

bool operator !=(box_t<T,N> const &box) const
LOL_ATTR_NODISCARD bool operator !=(box_t<T,N> const &box) const
{
return aa != box.aa || bb != box.bb;
}
@@ -192,19 +192,19 @@ private:
float Minus() const;
float Plus() const;
public:
bool operator==(float value) const;
bool operator!=(float value) const;
bool operator<(float value) const;
bool operator<=(float value) const;
bool operator>(float value) const;
bool operator>=(float value) const;
LOL_ATTR_NODISCARD bool operator==(float value) const;
LOL_ATTR_NODISCARD bool operator!=(float value) const;
LOL_ATTR_NODISCARD bool operator<(float value) const;
LOL_ATTR_NODISCARD bool operator<=(float value) const;
LOL_ATTR_NODISCARD bool operator>(float value) const;
LOL_ATTR_NODISCARD bool operator>=(float value) const;
};
bool operator==(float value, const TestEpsilon& epsilon);
bool operator!=(float value, const TestEpsilon& epsilon);
bool operator<(float value, const TestEpsilon& epsilon);
bool operator<=(float value, const TestEpsilon& epsilon);
bool operator>(float value, const TestEpsilon& epsilon);
bool operator>=(float value, const TestEpsilon& epsilon);
LOL_ATTR_NODISCARD bool operator==(float value, const TestEpsilon& epsilon);
LOL_ATTR_NODISCARD bool operator!=(float value, const TestEpsilon& epsilon);
LOL_ATTR_NODISCARD bool operator<(float value, const TestEpsilon& epsilon);
LOL_ATTR_NODISCARD bool operator<=(float value, const TestEpsilon& epsilon);
LOL_ATTR_NODISCARD bool operator>(float value, const TestEpsilon& epsilon);
LOL_ATTR_NODISCARD bool operator>=(float value, const TestEpsilon& epsilon);

//--
static inline bool TestAABBVsAABB(box2 const &b1, box2 const &b2)


+ 31
- 31
src/lol/math/half.h 查看文件

@@ -30,7 +30,7 @@ namespace lol

namespace half_ops { struct base {}; }

class half
class LOL_ATTR_NODISCARD half
: half_ops::base
{
public:
@@ -42,22 +42,22 @@ public:
inline half(double f) { *this = makefast((float)f); }
inline half(ldouble f) { *this = makefast((float)f); }

inline int is_nan() const
LOL_ATTR_NODISCARD inline int is_nan() const
{
return ((bits & 0x7c00u) == 0x7c00u) && (bits & 0x03ffu);
}

inline int is_finite() const
LOL_ATTR_NODISCARD inline int is_finite() const
{
return (bits & 0x7c00u) != 0x7c00u;
}

inline int is_inf() const
LOL_ATTR_NODISCARD inline int is_inf() const
{
return (uint16_t)(bits << 1) == (0x7c00u << 1);
}

inline int is_normal() const
LOL_ATTR_NODISCARD inline int is_normal() const
{
return (is_finite() && (bits & 0x7c00u)) || ((bits & 0x7fffu) == 0);
}
@@ -67,33 +67,33 @@ public:
inline half &operator =(float f) { return *this = makefast(f); }
inline half &operator =(double f) { return *this = makefast((float)f); }
inline half &operator =(ldouble f) { return *this = makefast((float)f); }
inline operator int8_t() const { return (int8_t)(float)*this; }
inline operator uint8_t() const { return (uint8_t)(float)*this; }
inline operator int16_t() const { return (int16_t)(float)*this; }
inline operator uint16_t() const { return (uint16_t)(float)*this; }
inline operator int32_t() const { return (int32_t)(float)*this; }
inline operator uint32_t() const { return (uint32_t)(float)*this; }
inline operator int64_t() const { return (int64_t)(float)*this; }
inline operator uint64_t() const { return (uint64_t)(float)*this; }
operator float() const;
inline operator double() const { return (float)(*this); }
inline operator ldouble() const { return (float)(*this); }
LOL_ATTR_NODISCARD inline operator int8_t() const { return (int8_t)(float)*this; }
LOL_ATTR_NODISCARD inline operator uint8_t() const { return (uint8_t)(float)*this; }
LOL_ATTR_NODISCARD inline operator int16_t() const { return (int16_t)(float)*this; }
LOL_ATTR_NODISCARD inline operator uint16_t() const { return (uint16_t)(float)*this; }
LOL_ATTR_NODISCARD inline operator int32_t() const { return (int32_t)(float)*this; }
LOL_ATTR_NODISCARD inline operator uint32_t() const { return (uint32_t)(float)*this; }
LOL_ATTR_NODISCARD inline operator int64_t() const { return (int64_t)(float)*this; }
LOL_ATTR_NODISCARD inline operator uint64_t() const { return (uint64_t)(float)*this; }
LOL_ATTR_NODISCARD operator float() const;
LOL_ATTR_NODISCARD inline operator double() const { return (float)(*this); }
LOL_ATTR_NODISCARD inline operator ldouble() const { return (float)(*this); }

/* Array conversions */
static size_t convert(half *dst, float const *src, size_t nelem);
static size_t convert(float *dst, half const *src, size_t nelem);
LOL_ATTR_NODISCARD static size_t convert(half *dst, float const *src, size_t nelem);
LOL_ATTR_NODISCARD static size_t convert(float *dst, half const *src, size_t nelem);

/* Operations */
bool operator ==(half x) const { return (float)*this == (float)x; }
bool operator !=(half x) const { return (float)*this != (float)x; }
bool operator <(half x) const { return (float)*this < (float)x; }
bool operator >(half x) const { return (float)*this > (float)x; }
bool operator <=(half x) const { return (float)*this <= (float)x; }
bool operator >=(half x) const { return (float)*this >= (float)x; }
LOL_ATTR_NODISCARD bool operator ==(half x) const { return (float)*this == (float)x; }
LOL_ATTR_NODISCARD bool operator !=(half x) const { return (float)*this != (float)x; }
LOL_ATTR_NODISCARD bool operator <(half x) const { return (float)*this < (float)x; }
LOL_ATTR_NODISCARD bool operator >(half x) const { return (float)*this > (float)x; }
LOL_ATTR_NODISCARD bool operator <=(half x) const { return (float)*this <= (float)x; }
LOL_ATTR_NODISCARD bool operator >=(half x) const { return (float)*this >= (float)x; }

bool operator !() const { return !(bits & 0x7fffu); }
operator bool() const { return !!*this; }
LOL_ATTR_NODISCARD bool operator !() const { return !(bits & 0x7fffu); }
LOL_ATTR_NODISCARD operator bool() const { return !!*this; }

inline half operator -() const { return makebits(bits ^ 0x8000u); }
inline half operator +() const { return *this; }
@@ -102,10 +102,10 @@ public:
inline half &operator *=(half h) { return (*this = (half)(*this * h)); }
inline half &operator /=(half h) { return (*this = (half)(*this / h)); }

inline float operator +(half h) const { return (float)*this + (float)h; }
inline float operator -(half h) const { return (float)*this - (float)h; }
inline float operator *(half h) const { return (float)*this * (float)h; }
inline float operator /(half h) const { return (float)*this / (float)h; }
LOL_ATTR_NODISCARD inline float operator +(half h) const { return (float)*this + (float)h; }
LOL_ATTR_NODISCARD inline float operator -(half h) const { return (float)*this - (float)h; }
LOL_ATTR_NODISCARD inline float operator *(half h) const { return (float)*this * (float)h; }
LOL_ATTR_NODISCARD inline float operator /(half h) const { return (float)*this / (float)h; }

/* Factories */
static half makefast(float f);


+ 9
- 9
src/lol/math/matrix.h 查看文件

@@ -34,7 +34,7 @@ namespace lol
*/

template<typename T, int COLS, int ROWS>
struct mat_t
struct LOL_ATTR_NODISCARD mat_t
: public linear_ops::base<vec_t<T,ROWS>>
{
static int const count = COLS;
@@ -72,7 +72,7 @@ private:
*/

template <typename T>
struct mat_t<T, 2, 2>
struct LOL_ATTR_NODISCARD mat_t<T, 2, 2>
: public linear_ops::base<vec_t<T,2>>
{
static int const count = 2;
@@ -157,7 +157,7 @@ static_assert(sizeof(dmat2) == 32, "sizeof(dmat2) == 32");
*/

template <typename T>
struct mat_t<T, 3, 3>
struct LOL_ATTR_NODISCARD mat_t<T, 3, 3>
: public linear_ops::base<vec_t<T,3>>
{
static int const count = 3;
@@ -288,7 +288,7 @@ static_assert(sizeof(dmat3) == 72, "sizeof(dmat3) == 72");
*/

template <typename T>
struct mat_t<T, 4, 4>
struct LOL_ATTR_NODISCARD mat_t<T, 4, 4>
: public linear_ops::base<vec_t<T,4>>
{
static int const count = 4;
@@ -498,7 +498,7 @@ mat_t<T, N - 1, N - 1> submatrix(mat_t<T, N, N> const &m, int i, int j)
* Compute square matrix cofactor
*/

template<typename T, int N>
template<typename T, int N> LOL_ATTR_NODISCARD
T cofactor(mat_t<T, N, N> const &m, int i, int j)
{
ASSERT(i >= 0); ASSERT(j >= 0); ASSERT(i < N); ASSERT(j < N);
@@ -506,7 +506,7 @@ T cofactor(mat_t<T, N, N> const &m, int i, int j)
return ((i + j) & 1) ? -tmp : tmp;
}

template<typename T>
template<typename T> LOL_ATTR_NODISCARD
T cofactor(mat_t<T, 2, 2> const &m, int i, int j)
{
/* This specialisation shouldn't be needed, but Visual Studio. */
@@ -548,7 +548,7 @@ void lu_decomposition(mat_t<T, N, N> const &m, mat_t<T, N, N> & L, mat_t<T, N, N
* Compute square matrix determinant, with a specialisation for 1×1 matrices
*/

template<typename T, int N>
template<typename T, int N> LOL_ATTR_NODISCARD
T determinant(mat_t<T, N, N> const &m)
{
mat_t<T, N, N> L, U;
@@ -562,7 +562,7 @@ T determinant(mat_t<T, N, N> const &m)
return permutation_det(P) * det;
}

template<typename T>
template<typename T> LOL_ATTR_NODISCARD
T const & determinant(mat_t<T, 1, 1> const &m)
{
return m[0][0];
@@ -655,7 +655,7 @@ vec_t<int, N> p_transpose(vec_t<int, N> P)
* Compute the determinant of a permutation square matrix corresponding to the permutation vector
*/

template<int N>
template<int N> LOL_ATTR_NODISCARD
int permutation_det(vec_t<int, N> const & permutation)
{
int result = 1;


+ 4
- 4
src/lol/math/ops.h 查看文件

@@ -70,14 +70,14 @@ namespace swizzle_ops
namespace swizzle_ops
{

template<typename T, int N, int SWIZZLE1, int SWIZZLE2>
template<typename T, int N, int SWIZZLE1, int SWIZZLE2> LOL_ATTR_NODISCARD
static inline typename std::enable_if<SWIZZLE1 != FULL_SWIZZLE || SWIZZLE2 != FULL_SWIZZLE, bool>::type
operator ==(vec_t<T,N,SWIZZLE1> const &a, vec_t<T,N,SWIZZLE2> const &b)
{
return vec_t<T,N>(a) == vec_t<T,N>(b);
}

template<typename T, int N, int SWIZZLE1, int SWIZZLE2>
template<typename T, int N, int SWIZZLE1, int SWIZZLE2> LOL_ATTR_NODISCARD
static inline typename std::enable_if<SWIZZLE1 != FULL_SWIZZLE || SWIZZLE2 != FULL_SWIZZLE, bool>::type
operator !=(vec_t<T,N,SWIZZLE1> const &a, vec_t<T,N,SWIZZLE2> const &b)
{
@@ -135,7 +135,7 @@ namespace linear_ops
* Comparisons
*/

template<typename V>
template<typename V> LOL_ATTR_NODISCARD
static inline typename std::enable_if<std::is_base_of<base<typename V::element>, V>::value, bool>::type
operator ==(V const &a, V const &b)
{
@@ -145,7 +145,7 @@ operator ==(V const &a, V const &b)
return true;
}

template<typename V>
template<typename V> LOL_ATTR_NODISCARD
static inline typename std::enable_if<std::is_base_of<base<typename V::element>, V>::value, bool>::type
operator !=(V const &a, V const &b)
{


+ 4
- 4
src/lol/math/polynomial.h 查看文件

@@ -25,7 +25,7 @@ namespace lol
{

template<typename T>
struct polynomial
struct LOL_ATTR_NODISCARD polynomial
{
/* The zero polynomial */
explicit inline polynomial() {}
@@ -90,7 +90,7 @@ struct polynomial
/* Evaluate polynomial at a given value. This method can also
* be used to compose polynomials, i.e. using another polynomial
* as the value instead of a scalar. */
template<typename U> U eval(U x) const
template<typename U> LOL_ATTR_NODISCARD U eval(U x) const
{
U ret(leading());
for (int i = degree() - 1; i >= 0; --i)
@@ -260,7 +260,7 @@ struct polynomial
* copy because we cannot let the user mess with the integrity of
* the structure (i.e. the guarantee that the leading coefficient
* remains non-zero). */
inline T operator[](ptrdiff_t n) const
LOL_ATTR_NODISCARD inline T operator[](ptrdiff_t n) const
{
if (n < 0 || n > degree())
return T(0);
@@ -269,7 +269,7 @@ struct polynomial
}

/* Return the leading coefficient */
inline T leading() const
LOL_ATTR_NODISCARD inline T leading() const
{
return (*this)[degree()];
}


+ 14
- 14
src/lol/math/rand.h 查看文件

@@ -22,48 +22,48 @@ namespace lol
{

/* Random number generators */
template<typename T> static inline T rand();
template<typename T> static inline T rand(T a);
template<typename T> static inline T rand(T a, T b);
template<typename T> LOL_ATTR_NODISCARD static inline T rand();
template<typename T> LOL_ATTR_NODISCARD static inline T rand(T a);
template<typename T> LOL_ATTR_NODISCARD static inline T rand(T a, T b);

/* One-value random number generators */
template<typename T> static inline T rand(T a)
template<typename T> LOL_ATTR_NODISCARD static inline T rand(T a)
{
return a ? rand<T>() % a : T(0);
}

template<> inline half rand<half>(half a)
template<> LOL_ATTR_NODISCARD inline half rand<half>(half a)
{
float f = (float)std::rand() / (float)RAND_MAX;
return (half)(a * f);
}

template<> inline float rand<float>(float a)
template<> LOL_ATTR_NODISCARD inline float rand<float>(float a)
{
float f = (float)std::rand() / (float)RAND_MAX;
return a * f;
}

template<> inline double rand<double>(double a)
template<> LOL_ATTR_NODISCARD inline double rand<double>(double a)
{
double f = (double)std::rand() / (double)RAND_MAX;
return a * f;
}

template<> inline ldouble rand<ldouble>(ldouble a)
template<> LOL_ATTR_NODISCARD inline ldouble rand<ldouble>(ldouble a)
{
ldouble f = (ldouble)std::rand() / (ldouble)RAND_MAX;
return a * f;
}

/* Two-value random number generator -- no need for specialisation */
template<typename T> static inline T rand(T a, T b)
template<typename T> LOL_ATTR_NODISCARD static inline T rand(T a, T b)
{
return a + rand<T>(b - a);
}

/* Default random number generator */
template<typename T> static inline T rand()
template<typename T> LOL_ATTR_NODISCARD static inline T rand()
{
switch (sizeof(T))
{
@@ -117,10 +117,10 @@ template<typename T> static inline T rand()
}
}

template<> inline half rand<half>() { return rand<half>(1.f); }
template<> inline float rand<float>() { return rand<float>(1.f); }
template<> inline double rand<double>() { return rand<double>(1.0); }
template<> inline ldouble rand<ldouble>() { return rand<ldouble>(1.0); }
template<> LOL_ATTR_NODISCARD inline half rand<half>() { return rand<half>(1.f); }
template<> LOL_ATTR_NODISCARD inline float rand<float>() { return rand<float>(1.f); }
template<> LOL_ATTR_NODISCARD inline double rand<double>() { return rand<double>(1.0); }
template<> LOL_ATTR_NODISCARD inline ldouble rand<ldouble>() { return rand<ldouble>(1.0); }

} /* namespace lol */


+ 28
- 27
src/lol/math/real.h 查看文件

@@ -35,7 +35,8 @@ namespace lol
* avoid accidental implicit conversions ("int x = 1; sqrt(x)" will never
* call real::sqrt).
*/
template<int N> class Real
template<int N>
class LOL_ATTR_NODISCARD Real
{
public:
Real();
@@ -53,11 +54,11 @@ public:

Real(char const *str);

operator float() const;
operator double() const;
operator long double() const;
operator int() const;
operator unsigned int() const;
LOL_ATTR_NODISCARD operator float() const;
LOL_ATTR_NODISCARD operator double() const;
LOL_ATTR_NODISCARD operator long double() const;
LOL_ATTR_NODISCARD operator int() const;
LOL_ATTR_NODISCARD operator unsigned int() const;

Real<N> operator +() const;
Real<N> operator -() const;
@@ -70,15 +71,15 @@ public:
Real<N> const &operator *=(Real<N> const &x);
Real<N> const &operator /=(Real<N> const &x);

bool operator ==(Real<N> const &x) const;
bool operator !=(Real<N> const &x) const;
bool operator <(Real<N> const &x) const;
bool operator >(Real<N> const &x) const;
bool operator <=(Real<N> const &x) const;
bool operator >=(Real<N> const &x) const;
LOL_ATTR_NODISCARD bool operator ==(Real<N> const &x) const;
LOL_ATTR_NODISCARD bool operator !=(Real<N> const &x) const;
LOL_ATTR_NODISCARD bool operator <(Real<N> const &x) const;
LOL_ATTR_NODISCARD bool operator >(Real<N> const &x) const;
LOL_ATTR_NODISCARD bool operator <=(Real<N> const &x) const;
LOL_ATTR_NODISCARD bool operator >=(Real<N> const &x) const;

bool operator !() const;
operator bool() const;
LOL_ATTR_NODISCARD bool operator !() const;
LOL_ATTR_NODISCARD operator bool() const;

/* Comparison functions */
template<int K> friend Real<K> min(Real<K> const &a, Real<K> const &b);
@@ -238,11 +239,11 @@ template<> real::Real(int64_t i);
template<> real::Real(uint64_t i);
template<> real::Real(char const *str);

template<> real::operator float() const;
template<> real::operator double() const;
template<> real::operator long double() const;
template<> real::operator int() const;
template<> real::operator unsigned int() const;
template<> LOL_ATTR_NODISCARD real::operator float() const;
template<> LOL_ATTR_NODISCARD real::operator double() const;
template<> LOL_ATTR_NODISCARD real::operator long double() const;
template<> LOL_ATTR_NODISCARD real::operator int() const;
template<> LOL_ATTR_NODISCARD real::operator unsigned int() const;
template<> real real::operator +() const;
template<> real real::operator -() const;
template<> real real::operator +(real const &x) const;
@@ -253,14 +254,14 @@ template<> real const &real::operator +=(real const &x);
template<> real const &real::operator -=(real const &x);
template<> real const &real::operator *=(real const &x);
template<> real const &real::operator /=(real const &x);
template<> bool real::operator ==(real const &x) const;
template<> bool real::operator !=(real const &x) const;
template<> bool real::operator <(real const &x) const;
template<> bool real::operator >(real const &x) const;
template<> bool real::operator <=(real const &x) const;
template<> bool real::operator >=(real const &x) const;
template<> bool real::operator !() const;
template<> real::operator bool() const;
template<> LOL_ATTR_NODISCARD bool real::operator ==(real const &x) const;
template<> LOL_ATTR_NODISCARD bool real::operator !=(real const &x) const;
template<> LOL_ATTR_NODISCARD bool real::operator <(real const &x) const;
template<> LOL_ATTR_NODISCARD bool real::operator >(real const &x) const;
template<> LOL_ATTR_NODISCARD bool real::operator <=(real const &x) const;
template<> LOL_ATTR_NODISCARD bool real::operator >=(real const &x) const;
template<> LOL_ATTR_NODISCARD bool real::operator !() const;
template<> LOL_ATTR_NODISCARD real::operator bool() const;

template<int K> Real<K> min(Real<K> const &a, Real<K> const &b);
template<int K> Real<K> max(Real<K> const &a, Real<K> const &b);


+ 16
- 16
src/lol/math/transform.h 查看文件

@@ -31,7 +31,7 @@ namespace lol
*/

template<typename T>
struct cmplx_t : public linear_ops::base<T>
struct LOL_ATTR_NODISCARD cmplx_t : public linear_ops::base<T>
{
static int const count = 2;
typedef T scalar_element;
@@ -78,7 +78,7 @@ static_assert(sizeof(dcmplx) == 16, "sizeof(dcmplx) == 16");
*/

template<typename T>
struct quat_t : public linear_ops::base<T>
struct LOL_ATTR_NODISCARD quat_t : public linear_ops::base<T>
{
static int const count = 4;
typedef T scalar_element;
@@ -233,7 +233,7 @@ struct quat_t : public linear_ops::base<T>
return normalize(v);
}

inline T angle()
LOL_ATTR_NODISCARD inline T angle()
{
vec_t<T,3> v(x, y, z);
T n2 = sqlength(v);
@@ -258,7 +258,7 @@ static_assert(sizeof(dquat) == 32, "sizeof(dquat) == 32");
*/

template<typename T>
struct sqt_t
struct LOL_ATTR_NODISCARD sqt_t
{
/* Default constructor and copy constructor */
inline constexpr sqt_t() : s(), q(), t() {}
@@ -325,7 +325,7 @@ struct sqt_t
* Common operations on transforms
*/

template<typename T>
template<typename T> LOL_ATTR_NODISCARD
static inline T dot(cmplx_t<T> const &t1, cmplx_t<T> const &t2)
{
T ret(0);
@@ -334,20 +334,20 @@ static inline T dot(cmplx_t<T> const &t1, cmplx_t<T> const &t2)
return ret;
}

template<typename T>
template<typename T> LOL_ATTR_NODISCARD
static inline T sqlength(cmplx_t<T> const &t)
{
return dot(t, t);
}

template<typename T>
template<typename T> LOL_ATTR_NODISCARD
static inline T length(cmplx_t<T> const &t)
{
/* FIXME: this is not very nice */
return (T)sqrt((double)sqlength(t));
}

template<typename T>
template<typename T> LOL_ATTR_NODISCARD
static inline T norm(cmplx_t<T> const &t)
{
return length(t);
@@ -362,7 +362,7 @@ static inline cmplx_t<T> normalize(cmplx_t<T> const &z)

/* XXX: duplicate */

template<typename T>
template<typename T> LOL_ATTR_NODISCARD
static inline T dot(quat_t<T> const &t1, quat_t<T> const &t2)
{
T ret(0);
@@ -371,20 +371,20 @@ static inline T dot(quat_t<T> const &t1, quat_t<T> const &t2)
return ret;
}

template<typename T>
template<typename T> LOL_ATTR_NODISCARD
static inline T sqlength(quat_t<T> const &t)
{
return dot(t, t);
}

template<typename T>
template<typename T> LOL_ATTR_NODISCARD
static inline T length(quat_t<T> const &t)
{
/* FIXME: this is not very nice */
return (T)sqrt((double)sqlength(t));
}

template<typename T>
template<typename T> LOL_ATTR_NODISCARD
static inline T norm(quat_t<T> const &t)
{
return length(t);
@@ -419,22 +419,22 @@ static inline cmplx_t<T> operator /(cmplx_t<T> a, cmplx_t<T> const &b)
return a * inverse(b);
}

template<typename T>
template<typename T> LOL_ATTR_NODISCARD
static inline bool operator ==(cmplx_t<T> const &a, T b)
{
return (a.x == b) && !a.y;
}

template<typename T>
template<typename T> LOL_ATTR_NODISCARD
static inline bool operator !=(cmplx_t<T> const &a, T b)
{
return (a.x != b) || a.y;
}

template<typename T>
template<typename T> LOL_ATTR_NODISCARD
static inline bool operator ==(T a, cmplx_t<T> const &b) { return b == a; }

template<typename T>
template<typename T> LOL_ATTR_NODISCARD
static inline bool operator !=(T a, cmplx_t<T> const &b) { return b != a; }

/*


+ 9
- 9
src/lol/math/vector.h 查看文件

@@ -57,7 +57,7 @@ namespace lol
*/

template<typename T, int N, int SWIZZLE>
struct vec_t
struct LOL_ATTR_NODISCARD vec_t
/* MUST have a different base than e.g. vec_t<T,2> otherwise the unions
* in vec_t<T,2> with the same base will cause empty base optimisation
* failures. */
@@ -108,7 +108,7 @@ struct vec_t
/* The generic “vec_t” type, which is a fixed-size vector with no
* swizzling. There's an override for N=2, N=3, N=4 that has swizzling. */
template<typename T, int N>
struct vec_t<T, N, FULL_SWIZZLE>
struct LOL_ATTR_NODISCARD vec_t<T, N, FULL_SWIZZLE>
: public componentwise_ops::base<T>
{
static int const count = N;
@@ -221,7 +221,7 @@ private:
*/

template <typename T>
struct vec_t<T,2>
struct LOL_ATTR_NODISCARD vec_t<T,2>
: public swizzle_ops::base<T>
{
static int const count = 2;
@@ -337,7 +337,7 @@ static_assert(sizeof(dvec2) == 16, "sizeof(dvec2) == 16");
*/

template <typename T>
struct vec_t<T,3>
struct LOL_ATTR_NODISCARD vec_t<T,3>
: public swizzle_ops::base<T>
{
static int const count = 3;
@@ -583,7 +583,7 @@ static_assert(sizeof(dvec3) == 24, "sizeof(dvec3) == 24");
*/

template <typename T>
struct vec_t<T,4>
struct LOL_ATTR_NODISCARD vec_t<T,4>
: public swizzle_ops::base<T>
{
static int const count = 4;
@@ -1138,7 +1138,7 @@ static inline vec_t<T,N> mix(vec_t<T,N,SWIZZLE1> const &x,
* Some GLSL-like functions.
*/

template<typename T, int N, int SWIZZLE1, int SWIZZLE2>
template<typename T, int N, int SWIZZLE1, int SWIZZLE2> LOL_ATTR_NODISCARD
static inline T dot(vec_t<T,N,SWIZZLE1> const &a,
vec_t<T,N,SWIZZLE2> const &b)
{
@@ -1148,13 +1148,13 @@ static inline T dot(vec_t<T,N,SWIZZLE1> const &a,
return ret;
}

template<typename T, int N, int SWIZZLE>
template<typename T, int N, int SWIZZLE> LOL_ATTR_NODISCARD
static inline T sqlength(vec_t<T,N,SWIZZLE> const &a)
{
return dot(a, a);
}

template<typename T, int N, int SWIZZLE>
template<typename T, int N, int SWIZZLE> LOL_ATTR_NODISCARD
static inline T length(vec_t<T,N,SWIZZLE> const &a)
{
/* FIXME: this is not very nice */
@@ -1172,7 +1172,7 @@ static inline vec_t<T,N> lerp(vec_t<T,N,SWIZZLE1> const &a,
return ret;
}

template<typename T, int N, int SWIZZLE1, int SWIZZLE2>
template<typename T, int N, int SWIZZLE1, int SWIZZLE2> LOL_ATTR_NODISCARD
static inline T distance(vec_t<T,N,SWIZZLE1> const &a,
vec_t<T,N,SWIZZLE2> const &b)
{


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