Go to the source code of this file.
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static double | ln2_hi = 6.93147180369123816490e-01 |
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static double | ln2_lo = 1.90821492927058770002e-10 |
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static double | two54 = 1.80143985094819840000e+16 |
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static double | Lg1 = 6.666666666666735130e-01 |
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static double | Lg2 = 3.999999999940941908e-01 |
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static double | Lg3 = 2.857142874366239149e-01 |
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static double | Lg4 = 2.222219843214978396e-01 |
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static double | Lg5 = 1.818357216161805012e-01 |
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static double | Lg6 = 1.531383769920937332e-01 |
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static double | Lg7 = 1.479819860511658591e-01 |
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static double | zero = 0.0 |
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◆ __ieee754_log()
Definition at line 99 of file e_log.c.
References EXTRACT_WORDS, GET_HIGH_WORD, i, j, k, Lg1, Lg2, Lg3, Lg4, Lg5, Lg6, Lg7, ln2_hi, ln2_lo, SET_HIGH_WORD, two54, and zero.
103 double hfsq,
f,
s,
z, R,
w,
t1, t2, dk;
110 if (hx < 0x00100000) {
111 if (((hx & 0x7fffffff) | lx) == 0)
119 if (hx >= 0x7ff00000)
121 k += (hx >> 20) - 1023;
123 i = (hx + 0x95f64) & 0x100000;
127 if ((0x000fffff & (2 + hx)) < 3) {
136 R = f * f * (0.5 - 0.33333333333333333 *
f);
157 return f - (hfsq - s * (hfsq + R));
159 return dk *
ln2_hi - ((hfsq - (s * (hfsq + R) + dk *
ln2_lo)) -
163 return f - s * (f - R);
#define GET_HIGH_WORD(i, d)
GLint GLint GLint GLint GLint x
#define SET_HIGH_WORD(d, v)
GLuint GLfloat GLfloat GLfloat GLfloat GLfloat GLfloat GLfloat GLfloat GLfloat t1
#define EXTRACT_WORDS(ix0, ix1, d)
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int int in j)
GLubyte GLubyte GLubyte GLubyte w
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int int int return Display Window Cursor return Display Window return Display Drawable GC int int unsigned int unsigned int return Display Drawable GC int int _Xconst char int return Display Drawable GC int int unsigned int unsigned int return Display return Display Cursor return Display GC return XModifierKeymap return char Display Window int return Display return Display Atom return Display Window XWindowAttributes return Display Window return Display XEvent Bool(*) XPointer return Display Window Bool unsigned int int int Window Cursor Time return Display Window int return KeySym return Display _Xconst char Bool return Display _Xconst char return XKeyEvent char int KeySym XComposeStatus return Display int int int XVisualInfo return Display Window int int return _Xconst char return Display XEvent return Display Drawable GC XImage int int int int unsigned int unsigned int return Display Window Window Window int int int int unsigned int return Display Window Window int int return Display Window unsigned int unsigned int return Display Window Bool long XEvent return Display GC unsigned long return Display Window int Time return Display Window Window return Display Window unsigned long return Display Window XSizeHints Display Colormap XColor int return char int XTextProperty return XFontStruct _Xconst char int int int int XCharStruct return Display Window return Display Time return Display Colormap return Display Window Window int int unsigned int unsigned int int int return Display Window int return XExtensionInfo Display char XExtensionHooks int XPointer return XExtensionInfo XExtensionInfo Display return Display return Display unsigned long Display GC Display char long Display xReply int Bool return Display Bool return Display int SDL_X11_XESetEventToWireRetType return Display Window Window Window Window unsigned int return Display XShmSegmentInfo return Display Drawable GC XImage int int int int unsigned int unsigned int Boo k)
◆ Lg1
double Lg1 = 6.666666666666735130e-01 |
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◆ Lg2
double Lg2 = 3.999999999940941908e-01 |
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◆ Lg3
double Lg3 = 2.857142874366239149e-01 |
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◆ Lg4
double Lg4 = 2.222219843214978396e-01 |
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static |
◆ Lg5
double Lg5 = 1.818357216161805012e-01 |
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◆ Lg6
double Lg6 = 1.531383769920937332e-01 |
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◆ Lg7
double Lg7 = 1.479819860511658591e-01 |
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◆ ln2_hi
double ln2_hi = 6.93147180369123816490e-01 |
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static |
◆ ln2_lo
double ln2_lo = 1.90821492927058770002e-10 |
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static |
◆ two54
double two54 = 1.80143985094819840000e+16 |
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◆ zero