54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
//
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// FloatLib.h
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//
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//
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// Created by Slice on 20.06.2018.
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//
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#ifndef FloatLib_h
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#define FloatLib_h
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const float PI = 3.1415926536f;
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const float PI2 = 6.283185307179586f;
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const float PI5 = 1.570796326794897f;
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const float PI4 = 0.78539816339745f;
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const float FLT_MAX = 1.0e38f;
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const float FLT_MIN = 1.0e-37f;
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float SqrtF(float X);
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float PowF(float X, INTN N);
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float SinF(float X);
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float CosF(float X);
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float TanF(float X);
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float CeilF(float X);
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float FloorF(float X);
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float ModF(float X, float Y);
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float AcosF(float X);
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float Atan2F(float Y, float X); //y=sin(A), x=cos(A), atan2(y,x) == A
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float FabsF(float X);
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float rndf(void); //random number from 0 to 1.0f
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int dither(float x, int level);
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float nsvg__vmag(float x, float y); //sqrt(x*x+y*y)
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inline float FabsF(float x) {
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if (x < 0.f) return -x;
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return x;
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}
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inline float SqrF(float x) { return x*x; }
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RETURN_STATUS
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AsciiStrToFloat(IN CONST CHAR8 *String,
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OUT CHAR8 **EndPointer, OPTIONAL
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OUT float *Data);
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#if 0
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//void AsciiSPrintFloat(CHAR8* S, INTN N, CHAR8* F, float X);
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void QuickSort(void* Array, INTN Low, INTN High, INTN Size,
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INTN (*compare)(CONST void* a, CONST void* b));
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#endif
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#endif /* FloatLib_h */
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