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-rw-r--r--web/server/h2o/libh2o/deps/mruby/mrbgems/mruby-math/src/math.c783
1 files changed, 0 insertions, 783 deletions
diff --git a/web/server/h2o/libh2o/deps/mruby/mrbgems/mruby-math/src/math.c b/web/server/h2o/libh2o/deps/mruby/mrbgems/mruby-math/src/math.c
deleted file mode 100644
index 7302b92d7..000000000
--- a/web/server/h2o/libh2o/deps/mruby/mrbgems/mruby-math/src/math.c
+++ /dev/null
@@ -1,783 +0,0 @@
-/*
-** math.c - Math module
-**
-** See Copyright Notice in mruby.h
-*/
-
-#include <mruby.h>
-#include <mruby/array.h>
-
-#include <math.h>
-
-static void
-domain_error(mrb_state *mrb, const char *func)
-{
- struct RClass *math = mrb_module_get(mrb, "Math");
- struct RClass *domainerror = mrb_class_get_under(mrb, math, "DomainError");
- mrb_value str = mrb_str_new_cstr(mrb, func);
- mrb_raisef(mrb, domainerror, "Numerical argument is out of domain - %S", str);
-}
-
-/* math functions not provided by Microsoft Visual C++ 2012 or older */
-#if defined _MSC_VER && _MSC_VER <= 1700
-
-#include <float.h>
-
-#define MATH_TOLERANCE 1E-12
-
-double
-asinh(double x)
-{
- double xa, ya, y;
-
- /* Basic formula loses precision for x < 0, but asinh is an odd function */
- xa = fabs(x);
- if (xa > 3.16227E+18) {
- /* Prevent x*x from overflowing; basic formula reduces to log(2*x) */
- ya = log(xa) + 0.69314718055994530942;
- }
- else {
- /* Basic formula for asinh */
- ya = log(xa + sqrt(xa*xa + 1.0));
- }
-
- y = _copysign(ya, x);
- return y;
-}
-
-double
-acosh(double x)
-{
- double y;
-
- if (x > 3.16227E+18) {
- /* Prevent x*x from overflowing; basic formula reduces to log(2*x) */
- y = log(x) + 0.69314718055994530942;
- }
- else {
- /* Basic formula for acosh */
- y = log(x + sqrt(x*x - 1.0));
- }
-
- return y;
-}
-
-double
-atanh(double x)
-{
- double y;
-
- if (fabs(x) < 1E-2) {
- /* The sums 1+x and 1-x lose precision for small x. Use the polynomial
- instead. */
- double x2 = x * x;
- y = x*(1.0 + x2*(1.0/3.0 + x2*(1.0/5.0 + x2*(1.0/7.0))));
- }
- else {
- /* Basic formula for atanh */
- y = 0.5 * (log(1.0+x) - log(1.0-x));
- }
-
- return y;
-}
-
-double
-cbrt(double x)
-{
- double xa, ya, y;
-
- /* pow(x, y) is undefined for x < 0 and y not an integer, but cbrt is an
- odd function */
- xa = fabs(x);
- ya = pow(xa, 1.0/3.0);
- y = _copysign(ya, x);
- return y;
-}
-
-/* Declaration of complementary Error function */
-double
-erfc(double x);
-
-/*
-** Implementations of error functions
-** credits to http://www.digitalmars.com/archives/cplusplus/3634.html
-*/
-
-/* Implementation of Error function */
-double
-erf(double x)
-{
- static const double two_sqrtpi = 1.128379167095512574;
- double sum = x;
- double term = x;
- double xsqr = x*x;
- int j= 1;
- if (fabs(x) > 2.2) {
- return 1.0 - erfc(x);
- }
- do {
- term *= xsqr/j;
- sum -= term/(2*j+1);
- ++j;
- term *= xsqr/j;
- sum += term/(2*j+1);
- ++j;
- } while (fabs(term/sum) > MATH_TOLERANCE);
- return two_sqrtpi*sum;
-}
-
-/* Implementation of complementary Error function */
-double
-erfc(double x)
-{
- static const double one_sqrtpi= 0.564189583547756287;
- double a = 1;
- double b = x;
- double c = x;
- double d = x*x+0.5;
- double q1;
- double q2 = b/d;
- double n = 1.0;
- double t;
- if (fabs(x) < 2.2) {
- return 1.0 - erf(x);
- }
- if (x < 0.0) { /*signbit(x)*/
- return 2.0 - erfc(-x);
- }
- do {
- t = a*n+b*x;
- a = b;
- b = t;
- t = c*n+d*x;
- c = d;
- d = t;
- n += 0.5;
- q1 = q2;
- q2 = b/d;
- } while (fabs(q1-q2)/q2 > MATH_TOLERANCE);
- return one_sqrtpi*exp(-x*x)*q2;
-}
-
-#endif
-
-#if (defined _MSC_VER && _MSC_VER < 1800) || defined __ANDROID__ || (defined __FreeBSD__ && __FreeBSD_version < 803000)
-
-double
-log2(double x)
-{
- return log10(x)/log10(2.0);
-}
-
-#endif
-
-/*
- TRIGONOMETRIC FUNCTIONS
-*/
-
-/*
- * call-seq:
- * Math.sin(x) -> float
- *
- * Computes the sine of <i>x</i> (expressed in radians). Returns
- * -1..1.
- */
-static mrb_value
-math_sin(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
-
- mrb_get_args(mrb, "f", &x);
- x = sin(x);
-
- return mrb_float_value(mrb, x);
-}
-
-/*
- * call-seq:
- * Math.cos(x) -> float
- *
- * Computes the cosine of <i>x</i> (expressed in radians). Returns
- * -1..1.
- */
-static mrb_value
-math_cos(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
-
- mrb_get_args(mrb, "f", &x);
- x = cos(x);
-
- return mrb_float_value(mrb, x);
-}
-
-/*
- * call-seq:
- * Math.tan(x) -> float
- *
- * Returns the tangent of <i>x</i> (expressed in radians).
- */
-static mrb_value
-math_tan(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
-
- mrb_get_args(mrb, "f", &x);
- x = tan(x);
-
- return mrb_float_value(mrb, x);
-}
-
-/*
- INVERSE TRIGONOMETRIC FUNCTIONS
-*/
-
-/*
- * call-seq:
- * Math.asin(x) -> float
- *
- * Computes the arc sine of <i>x</i>.
- * @return computed value between `-(PI/2)` and `(PI/2)`.
- */
-static mrb_value
-math_asin(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
-
- mrb_get_args(mrb, "f", &x);
- if (x < -1.0 || x > 1.0) {
- domain_error(mrb, "asin");
- }
- x = asin(x);
-
- return mrb_float_value(mrb, x);
-}
-
-/*
- * call-seq:
- * Math.acos(x) -> float
- *
- * Computes the arc cosine of <i>x</i>. Returns 0..PI.
- */
-static mrb_value
-math_acos(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
-
- mrb_get_args(mrb, "f", &x);
- if (x < -1.0 || x > 1.0) {
- domain_error(mrb, "acos");
- }
- x = acos(x);
-
- return mrb_float_value(mrb, x);
-}
-
-/*
- * call-seq:
- * Math.atan(x) -> float
- *
- * Computes the arc tangent of <i>x</i>. Returns `-(PI/2) .. (PI/2)`.
- */
-static mrb_value
-math_atan(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
-
- mrb_get_args(mrb, "f", &x);
- x = atan(x);
-
- return mrb_float_value(mrb, x);
-}
-
-/*
- * call-seq:
- * Math.atan2(y, x) -> float
- *
- * Computes the arc tangent given <i>y</i> and <i>x</i>. Returns
- * -PI..PI.
- *
- * Math.atan2(-0.0, -1.0) #=> -3.141592653589793
- * Math.atan2(-1.0, -1.0) #=> -2.356194490192345
- * Math.atan2(-1.0, 0.0) #=> -1.5707963267948966
- * Math.atan2(-1.0, 1.0) #=> -0.7853981633974483
- * Math.atan2(-0.0, 1.0) #=> -0.0
- * Math.atan2(0.0, 1.0) #=> 0.0
- * Math.atan2(1.0, 1.0) #=> 0.7853981633974483
- * Math.atan2(1.0, 0.0) #=> 1.5707963267948966
- * Math.atan2(1.0, -1.0) #=> 2.356194490192345
- * Math.atan2(0.0, -1.0) #=> 3.141592653589793
- *
- */
-static mrb_value
-math_atan2(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x, y;
-
- mrb_get_args(mrb, "ff", &x, &y);
- x = atan2(x, y);
-
- return mrb_float_value(mrb, x);
-}
-
-
-
-/*
- HYPERBOLIC TRIG FUNCTIONS
-*/
-/*
- * call-seq:
- * Math.sinh(x) -> float
- *
- * Computes the hyperbolic sine of <i>x</i> (expressed in
- * radians).
- */
-static mrb_value
-math_sinh(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
-
- mrb_get_args(mrb, "f", &x);
- x = sinh(x);
-
- return mrb_float_value(mrb, x);
-}
-
-/*
- * call-seq:
- * Math.cosh(x) -> float
- *
- * Computes the hyperbolic cosine of <i>x</i> (expressed in radians).
- */
-static mrb_value
-math_cosh(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
-
- mrb_get_args(mrb, "f", &x);
- x = cosh(x);
-
- return mrb_float_value(mrb, x);
-}
-
-/*
- * call-seq:
- * Math.tanh() -> float
- *
- * Computes the hyperbolic tangent of <i>x</i> (expressed in
- * radians).
- */
-static mrb_value
-math_tanh(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
-
- mrb_get_args(mrb, "f", &x);
- x = tanh(x);
-
- return mrb_float_value(mrb, x);
-}
-
-
-/*
- INVERSE HYPERBOLIC TRIG FUNCTIONS
-*/
-
-/*
- * call-seq:
- * Math.asinh(x) -> float
- *
- * Computes the inverse hyperbolic sine of <i>x</i>.
- */
-static mrb_value
-math_asinh(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
-
- mrb_get_args(mrb, "f", &x);
-
- x = asinh(x);
-
- return mrb_float_value(mrb, x);
-}
-
-/*
- * call-seq:
- * Math.acosh(x) -> float
- *
- * Computes the inverse hyperbolic cosine of <i>x</i>.
- */
-static mrb_value
-math_acosh(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
-
- mrb_get_args(mrb, "f", &x);
- if (x < 1.0) {
- domain_error(mrb, "acosh");
- }
- x = acosh(x);
-
- return mrb_float_value(mrb, x);
-}
-
-/*
- * call-seq:
- * Math.atanh(x) -> float
- *
- * Computes the inverse hyperbolic tangent of <i>x</i>.
- */
-static mrb_value
-math_atanh(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
-
- mrb_get_args(mrb, "f", &x);
- if (x < -1.0 || x > 1.0) {
- domain_error(mrb, "atanh");
- }
- x = atanh(x);
-
- return mrb_float_value(mrb, x);
-}
-
-/*
- EXPONENTIALS AND LOGARITHMS
-*/
-
-/*
- * call-seq:
- * Math.exp(x) -> float
- *
- * Returns e**x.
- *
- * Math.exp(0) #=> 1.0
- * Math.exp(1) #=> 2.718281828459045
- * Math.exp(1.5) #=> 4.4816890703380645
- *
- */
-static mrb_value
-math_exp(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
-
- mrb_get_args(mrb, "f", &x);
- x = exp(x);
-
- return mrb_float_value(mrb, x);
-}
-
-/*
- * call-seq:
- * Math.log(numeric) -> float
- * Math.log(num,base) -> float
- *
- * Returns the natural logarithm of <i>numeric</i>.
- * If additional second argument is given, it will be the base
- * of logarithm.
- *
- * Math.log(1) #=> 0.0
- * Math.log(Math::E) #=> 1.0
- * Math.log(Math::E**3) #=> 3.0
- * Math.log(12,3) #=> 2.2618595071429146
- *
- */
-static mrb_value
-math_log(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x, base;
- int argc;
-
- argc = mrb_get_args(mrb, "f|f", &x, &base);
- if (x < 0.0) {
- domain_error(mrb, "log");
- }
- x = log(x);
- if (argc == 2) {
- if (base < 0.0) {
- domain_error(mrb, "log");
- }
- x /= log(base);
- }
- return mrb_float_value(mrb, x);
-}
-
-/*
- * call-seq:
- * Math.log2(numeric) -> float
- *
- * Returns the base 2 logarithm of <i>numeric</i>.
- *
- * Math.log2(1) #=> 0.0
- * Math.log2(2) #=> 1.0
- * Math.log2(32768) #=> 15.0
- * Math.log2(65536) #=> 16.0
- *
- */
-static mrb_value
-math_log2(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
-
- mrb_get_args(mrb, "f", &x);
- if (x < 0.0) {
- domain_error(mrb, "log2");
- }
- x = log2(x);
-
- return mrb_float_value(mrb, x);
-}
-
-/*
- * call-seq:
- * Math.log10(numeric) -> float
- *
- * Returns the base 10 logarithm of <i>numeric</i>.
- *
- * Math.log10(1) #=> 0.0
- * Math.log10(10) #=> 1.0
- * Math.log10(10**100) #=> 100.0
- *
- */
-static mrb_value
-math_log10(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
-
- mrb_get_args(mrb, "f", &x);
- if (x < 0.0) {
- domain_error(mrb, "log10");
- }
- x = log10(x);
-
- return mrb_float_value(mrb, x);
-}
-
-/*
- * call-seq:
- * Math.sqrt(numeric) -> float
- *
- * Returns the square root of <i>numeric</i>.
- *
- */
-static mrb_value
-math_sqrt(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
-
- mrb_get_args(mrb, "f", &x);
- if (x < 0.0) {
- domain_error(mrb, "sqrt");
- }
- x = sqrt(x);
-
- return mrb_float_value(mrb, x);
-}
-
-
-/*
- * call-seq:
- * Math.cbrt(numeric) -> float
- *
- * Returns the cube root of <i>numeric</i>.
- *
- * -9.upto(9) {|x|
- * p [x, Math.cbrt(x), Math.cbrt(x)**3]
- * }
- * #=>
- * [-9, -2.0800838230519, -9.0]
- * [-8, -2.0, -8.0]
- * [-7, -1.91293118277239, -7.0]
- * [-6, -1.81712059283214, -6.0]
- * [-5, -1.7099759466767, -5.0]
- * [-4, -1.5874010519682, -4.0]
- * [-3, -1.44224957030741, -3.0]
- * [-2, -1.25992104989487, -2.0]
- * [-1, -1.0, -1.0]
- * [0, 0.0, 0.0]
- * [1, 1.0, 1.0]
- * [2, 1.25992104989487, 2.0]
- * [3, 1.44224957030741, 3.0]
- * [4, 1.5874010519682, 4.0]
- * [5, 1.7099759466767, 5.0]
- * [6, 1.81712059283214, 6.0]
- * [7, 1.91293118277239, 7.0]
- * [8, 2.0, 8.0]
- * [9, 2.0800838230519, 9.0]
- *
- */
-static mrb_value
-math_cbrt(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
-
- mrb_get_args(mrb, "f", &x);
- x = cbrt(x);
-
- return mrb_float_value(mrb, x);
-}
-
-
-/*
- * call-seq:
- * Math.frexp(numeric) -> [ fraction, exponent ]
- *
- * Returns a two-element array containing the normalized fraction (a
- * <code>Float</code>) and exponent (a <code>Fixnum</code>) of
- * <i>numeric</i>.
- *
- * fraction, exponent = Math.frexp(1234) #=> [0.6025390625, 11]
- * fraction * 2**exponent #=> 1234.0
- */
-static mrb_value
-math_frexp(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
- int exp;
-
- mrb_get_args(mrb, "f", &x);
- x = frexp(x, &exp);
-
- return mrb_assoc_new(mrb, mrb_float_value(mrb, x), mrb_fixnum_value(exp));
-}
-
-/*
- * call-seq:
- * Math.ldexp(flt, int) -> float
- *
- * Returns the value of <i>flt</i>*(2**<i>int</i>).
- *
- * fraction, exponent = Math.frexp(1234)
- * Math.ldexp(fraction, exponent) #=> 1234.0
- */
-static mrb_value
-math_ldexp(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
- mrb_int i;
-
- mrb_get_args(mrb, "fi", &x, &i);
- x = ldexp(x, i);
-
- return mrb_float_value(mrb, x);
-}
-
-/*
- * call-seq:
- * Math.hypot(x, y) -> float
- *
- * Returns sqrt(x**2 + y**2), the hypotenuse of a right-angled triangle
- * with sides <i>x</i> and <i>y</i>.
- *
- * Math.hypot(3, 4) #=> 5.0
- */
-static mrb_value
-math_hypot(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x, y;
-
- mrb_get_args(mrb, "ff", &x, &y);
- x = hypot(x, y);
-
- return mrb_float_value(mrb, x);
-}
-
-/*
- * call-seq:
- * Math.erf(x) -> float
- *
- * Calculates the error function of x.
- */
-static mrb_value
-math_erf(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
-
- mrb_get_args(mrb, "f", &x);
- x = erf(x);
-
- return mrb_float_value(mrb, x);
-}
-
-
-/*
- * call-seq:
- * Math.erfc(x) -> float
- *
- * Calculates the complementary error function of x.
- */
-static mrb_value
-math_erfc(mrb_state *mrb, mrb_value obj)
-{
- mrb_float x;
-
- mrb_get_args(mrb, "f", &x);
- x = erfc(x);
-
- return mrb_float_value(mrb, x);
-}
-
-/* ------------------------------------------------------------------------*/
-void
-mrb_mruby_math_gem_init(mrb_state* mrb)
-{
- struct RClass *mrb_math;
- mrb_math = mrb_define_module(mrb, "Math");
-
- mrb_define_class_under(mrb, mrb_math, "DomainError", mrb->eStandardError_class);
-
-#ifdef M_PI
- mrb_define_const(mrb, mrb_math, "PI", mrb_float_value(mrb, M_PI));
-#else
- mrb_define_const(mrb, mrb_math, "PI", mrb_float_value(mrb, atan(1.0)*4.0));
-#endif
-
-#ifdef M_E
- mrb_define_const(mrb, mrb_math, "E", mrb_float_value(mrb, M_E));
-#else
- mrb_define_const(mrb, mrb_math, "E", mrb_float_value(mrb, exp(1.0)));
-#endif
-
-#ifdef MRB_USE_FLOAT
- mrb_define_const(mrb, mrb_math, "TOLERANCE", mrb_float_value(mrb, 1e-5));
-#else
- mrb_define_const(mrb, mrb_math, "TOLERANCE", mrb_float_value(mrb, 1e-12));
-#endif
-
- mrb_define_module_function(mrb, mrb_math, "sin", math_sin, MRB_ARGS_REQ(1));
- mrb_define_module_function(mrb, mrb_math, "cos", math_cos, MRB_ARGS_REQ(1));
- mrb_define_module_function(mrb, mrb_math, "tan", math_tan, MRB_ARGS_REQ(1));
-
- mrb_define_module_function(mrb, mrb_math, "asin", math_asin, MRB_ARGS_REQ(1));
- mrb_define_module_function(mrb, mrb_math, "acos", math_acos, MRB_ARGS_REQ(1));
- mrb_define_module_function(mrb, mrb_math, "atan", math_atan, MRB_ARGS_REQ(1));
- mrb_define_module_function(mrb, mrb_math, "atan2", math_atan2, MRB_ARGS_REQ(2));
-
- mrb_define_module_function(mrb, mrb_math, "sinh", math_sinh, MRB_ARGS_REQ(1));
- mrb_define_module_function(mrb, mrb_math, "cosh", math_cosh, MRB_ARGS_REQ(1));
- mrb_define_module_function(mrb, mrb_math, "tanh", math_tanh, MRB_ARGS_REQ(1));
-
- mrb_define_module_function(mrb, mrb_math, "asinh", math_asinh, MRB_ARGS_REQ(1));
- mrb_define_module_function(mrb, mrb_math, "acosh", math_acosh, MRB_ARGS_REQ(1));
- mrb_define_module_function(mrb, mrb_math, "atanh", math_atanh, MRB_ARGS_REQ(1));
-
- mrb_define_module_function(mrb, mrb_math, "exp", math_exp, MRB_ARGS_REQ(1));
- mrb_define_module_function(mrb, mrb_math, "log", math_log, MRB_ARGS_REQ(1)|MRB_ARGS_OPT(1));
- mrb_define_module_function(mrb, mrb_math, "log2", math_log2, MRB_ARGS_REQ(1));
- mrb_define_module_function(mrb, mrb_math, "log10", math_log10, MRB_ARGS_REQ(1));
- mrb_define_module_function(mrb, mrb_math, "sqrt", math_sqrt, MRB_ARGS_REQ(1));
- mrb_define_module_function(mrb, mrb_math, "cbrt", math_cbrt, MRB_ARGS_REQ(1));
-
- mrb_define_module_function(mrb, mrb_math, "frexp", math_frexp, MRB_ARGS_REQ(1));
- mrb_define_module_function(mrb, mrb_math, "ldexp", math_ldexp, MRB_ARGS_REQ(2));
-
- mrb_define_module_function(mrb, mrb_math, "hypot", math_hypot, MRB_ARGS_REQ(2));
-
- mrb_define_module_function(mrb, mrb_math, "erf", math_erf, MRB_ARGS_REQ(1));
- mrb_define_module_function(mrb, mrb_math, "erfc", math_erfc, MRB_ARGS_REQ(1));
-}
-
-void
-mrb_mruby_math_gem_final(mrb_state* mrb)
-{
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-02 18:27:16 +0000