ref: 759acbd4ddaa706d2f457616d4e5ea32ea4127f6
dir: /jsbmath.c/
#include "jsi.h" #include "jsobject.h" #include "jsbuiltin.h" static int Math_abs(js_State *J, int nargs) { return js_pushnumber(J, abs(js_tonumber(J, 1))), 1; } static int Math_acos(js_State *J, int nargs) { return js_pushnumber(J, acos(js_tonumber(J, 1))), 1; } static int Math_asin(js_State *J, int nargs) { return js_pushnumber(J, asin(js_tonumber(J, 1))), 1; } static int Math_atan(js_State *J, int nargs) { return js_pushnumber(J, atan(js_tonumber(J, 1))), 1; } static int Math_atan2(js_State *J, int nargs) { return js_pushnumber(J, atan2(js_tonumber(J, 1), js_tonumber(J, 2))), 1; } static int Math_ceil(js_State *J, int nargs) { return js_pushnumber(J, ceil(js_tonumber(J, 1))), 1; } static int Math_cos(js_State *J, int nargs) { return js_pushnumber(J, cos(js_tonumber(J, 1))), 1; } static int Math_exp(js_State *J, int nargs) { return js_pushnumber(J, exp(js_tonumber(J, 1))), 1; } static int Math_floor(js_State *J, int nargs) { return js_pushnumber(J, floor(js_tonumber(J, 1))), 1; } static int Math_log(js_State *J, int nargs) { return js_pushnumber(J, log(js_tonumber(J, 1))), 1; } static int Math_pow(js_State *J, int nargs) { return js_pushnumber(J, pow(js_tonumber(J, 1), js_tonumber(J, 2))), 1; } static int Math_random(js_State *J, int nargs) { return js_pushnumber(J, (double)rand() / (RAND_MAX - 1)), 1; } static int Math_round(js_State *J, int nargs) { return js_pushnumber(J, round(js_tonumber(J, 1))), 1; } static int Math_sin(js_State *J, int nargs) { return js_pushnumber(J, sin(js_tonumber(J, 1))), 1; } static int Math_sqrt(js_State *J, int nargs) { return js_pushnumber(J, sqrt(js_tonumber(J, 1))), 1; } static int Math_tan(js_State *J, int nargs) { return js_pushnumber(J, tan(js_tonumber(J, 1))), 1; } static int Math_max(js_State *J, int nargs) { double n = js_tonumber(J, 1); int i; for (i = 2; i < nargs; i++) { double m = js_tonumber(J, i); n = n > m ? n : m; } js_pushnumber(J, n); return 1; } static int Math_min(js_State *J, int nargs) { double n = js_tonumber(J, 1); int i; for (i = 2; i < nargs; i++) { double m = js_tonumber(J, i); n = n < m ? n : m; } js_pushnumber(J, n); return 1; } void jsB_initmath(js_State *J) { js_pushobject(J, jsR_newobject(J, JS_CMATH, J->Object_prototype)); { jsB_propn(J, "E", M_E); jsB_propn(J, "LN10", M_LN10); jsB_propn(J, "LN2", M_LN2); jsB_propn(J, "LOG2E", M_LOG2E); jsB_propn(J, "LOG10E", M_LOG10E); jsB_propn(J, "PI", M_PI); jsB_propn(J, "SQRT1_2", M_SQRT1_2); jsB_propn(J, "SQRT2", M_SQRT2); jsB_propf(J, "abs", Math_abs, 1); jsB_propf(J, "acos", Math_acos, 1); jsB_propf(J, "asin", Math_asin, 1); jsB_propf(J, "atan", Math_atan, 1); jsB_propf(J, "atan2", Math_atan2, 2); jsB_propf(J, "ceil", Math_ceil, 1); jsB_propf(J, "cos", Math_cos, 1); jsB_propf(J, "exp", Math_exp, 1); jsB_propf(J, "floor", Math_floor, 1); jsB_propf(J, "log", Math_log, 1); jsB_propf(J, "max", Math_max, 2); jsB_propf(J, "min", Math_min, 2); jsB_propf(J, "pow", Math_pow, 2); jsB_propf(J, "random", Math_random, 0); jsB_propf(J, "round", Math_round, 1); jsB_propf(J, "sin", Math_sin, 1); jsB_propf(J, "sqrt", Math_sqrt, 1); jsB_propf(J, "tan", Math_tan, 1); } js_setglobal(J, "Math"); }