3 // The commented-out functions need no implementation because DarkPlaces offers
4 // them as builtins. They are listed here anyway for completeness sake.
11 #define FP_SUBNORMAL 3
13 int fpclassify(float x);
14 int isfinite(float x);
17 int isnormal(float x);
20 //float acos(float x);
21 //float asin(float x);
22 //float atan(float x);
23 //float atan2(float y, float x);
39 vector frexp(float x); // returns mantissa as _x, exponent as _y
41 float ldexp(float x, int e);
47 vector modf(float f); // fraction as _x, integer as _y
49 float scalbn(float x, int n);
52 //float fabs(float x);
53 float hypot(float x, float y);
54 //float pow(float x, float y);
55 //float sqrt(float x, float y);
59 vector lgamma(float x); // value in _x, sign in _y
60 float tgamma(float x);
62 //float ceil(float x);
63 //float floor(float x);
64 float nearbyint(float x);
65 //float rint(float x);
66 //float round(float x);
69 float fmod(float x, float y);
70 float remainder(float x, float y);
71 vector remquo(float x, float y);
73 float copysign(float x, float y);
74 float nan(string tag);
75 float nextafter(float x, float y);
76 float nexttoward(float x, float y);
78 float fdim(float x, float y);
79 float fmax(float x, float y);
80 float fmin(float x, float y);
81 float fma(float x, float y, float z);
83 int isgreater(float x, float y);
84 int isgreaterequal(float x, float y);
85 int isless(float x, float y);
86 int islessequal(float x, float y);
87 int islessgreater(float x, float y);
88 int isunordered(float x, float y);
90 #define M_E 2.7182818284590452354 /* e */
91 #define M_LOG2E 1.4426950408889634074 /* log_2 e */
92 #define M_LOG10E 0.43429448190325182765 /* log_10 e */
93 #define M_LN2 0.69314718055994530942 /* log_e 2 */
94 #define M_LN10 2.30258509299404568402 /* log_e 10 */
95 #define M_PI 3.14159265358979323846 /* pi */
96 #define M_PI_2 1.57079632679489661923 /* pi/2 */
97 #define M_PI_4 0.78539816339744830962 /* pi/4 */
98 #define M_1_PI 0.31830988618379067154 /* 1/pi */
99 #define M_2_PI 0.63661977236758134308 /* 2/pi */
100 #define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */
101 #define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
102 #define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */