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Update math.h

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This commit is contained in:
yeojingkang 2020-08-20 05:02:33 +08:00
parent 6e9c370eca
commit de6ea67663
1 changed files with 3 additions and 9 deletions
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12
src/base/math.h
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@ -9,11 +9,7 @@
template <typename T> template <typename T>
constexpr inline T clamp(T val, T min, T max) constexpr inline T clamp(T val, T min, T max)
{ {
if(val < min) return val < min ? min : (val > max ? max : val);
return min;
if(val > max)
return max;
return val;
} }
constexpr inline float sign(float f) constexpr inline float sign(float f)
@ -23,9 +19,7 @@ constexpr inline float sign(float f)
constexpr inline int round_to_int(float f) constexpr inline int round_to_int(float f)
{ {
if(f > 0) return f > 0 ? (int)(f + 0.5f) : (int)(f - 0.5f);
return (int)(f+0.5f);
return (int)(f-0.5f);
} }
constexpr inline int round_truncate(float f) constexpr inline int round_truncate(float f)
@ -50,7 +44,7 @@ inline float frandom() { return rand()/(float)(RAND_MAX); }
constexpr inline int f2fx(float v) { return (int)(v*(float)(1<<10)); } constexpr inline int f2fx(float v) { return (int)(v*(float)(1<<10)); }
constexpr inline float fx2f(int v) { return v*(1.0f/(1<<10)); } constexpr inline float fx2f(int v) { return v*(1.0f/(1<<10)); }
constexpr inline int gcd(int a, int b) inline int gcd(int a, int b)
{ {
while(b != 0) while(b != 0)
{ {