diff options
Diffstat (limited to 'core/math/math_funcs.h')
| -rw-r--r-- | core/math/math_funcs.h | 19 |
1 files changed, 4 insertions, 15 deletions
diff --git a/core/math/math_funcs.h b/core/math/math_funcs.h index 9f8d4da5b3..f83ee44f4a 100644 --- a/core/math/math_funcs.h +++ b/core/math/math_funcs.h @@ -46,7 +46,8 @@ class Math { public: Math() {} // useless to instance - static const uint64_t RANDOM_MAX = 0xFFFFFFFF; + // Not using 'RANDOM_MAX' to avoid conflict with system headers on some OSes (at least NetBSD). + static const uint64_t RANDOM_32BIT_MAX = 0xFFFFFFFF; static _ALWAYS_INLINE_ double sin(double p_x) { return ::sin(p_x); } static _ALWAYS_INLINE_ float sin(float p_x) { return ::sinf(p_x); } @@ -283,25 +284,13 @@ public: static void randomize(); static uint32_t rand_from_seed(uint64_t *seed); static uint32_t rand(); - static _ALWAYS_INLINE_ double randd() { return (double)rand() / (double)Math::RANDOM_MAX; } - static _ALWAYS_INLINE_ float randf() { return (float)rand() / (float)Math::RANDOM_MAX; } + static _ALWAYS_INLINE_ double randd() { return (double)rand() / (double)Math::RANDOM_32BIT_MAX; } + static _ALWAYS_INLINE_ float randf() { return (float)rand() / (float)Math::RANDOM_32BIT_MAX; } static double random(double from, double to); static float random(float from, float to); static real_t random(int from, int to) { return (real_t)random((real_t)from, (real_t)to); } - static _ALWAYS_INLINE_ bool is_equal_approx_ratio(real_t a, real_t b, real_t epsilon = CMP_EPSILON, real_t min_epsilon = CMP_EPSILON) { - // this is an approximate way to check that numbers are close, as a ratio of their average size - // helps compare approximate numbers that may be very big or very small - real_t diff = abs(a - b); - if (diff == 0.0 || diff < min_epsilon) { - return true; - } - real_t avg_size = (abs(a) + abs(b)) / 2.0; - diff /= avg_size; - return diff < epsilon; - } - static _ALWAYS_INLINE_ bool is_equal_approx(real_t a, real_t b) { // Check for exact equality first, required to handle "infinity" values. if (a == b) { |