gfloat.h File Reference

#include <math.h>

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Functions
void	SinCos (float angle, float *sine, float *cosine)
float	Sin (float angle)
float	Cos (float angle)
float	Sqrt (float arg)

---

Function Documentation

void SinCos	(	float	angle,
		float *	sine,
		float *	cosine
	)		[inline]

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Definition at line 30 of file gfloat.h.

{
#ifdef __USE_ASM_CODE_
    __asm {
        push        ecx
        fld         dword ptr angle
        fsincos
        mov         ecx, dword ptr[cosine]
        fstp        dword ptr [ecx]
        mov         ecx, dword ptr[sine]
        fstp        dword ptr [ecx]
        pop         ecx
    }
#else
    *sine   = (float)sin (angle);
    *cosine = (float)cos (angle);
#endif
}

float Sin

(

float

angle

)

[inline]

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Definition at line 49 of file gfloat.h.

{
#ifdef __USE_ASM_CODE_
    float s, c;
    SinCos(angle, &s, &c);
    return s;
#else
    return (float)sin((double)angle);
#endif
}

float Cos

(

float

angle

)

[inline]

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Definition at line 60 of file gfloat.h.

{
#ifdef __USE_ASM_CODE_
    float s, c;
    SinCos(angle, &s, &c);
    return c;
#else
    return (float)cos((double)angle);
#endif
}

float Sqrt

(

float

arg

)

[inline]

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Definition at line 71 of file gfloat.h.

{
#ifdef __USE_ASM_CODE_
    float ans;
    __asm {
        fld         dword ptr arg
        fsqrt
        fstp        dword ptr [ans]
        }
    return ans;
#else
    return (float)sqrt((double)arg);
#endif
}