| 1 | /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 | * | |
| 3 | * ***** BEGIN LICENSE BLOCK ***** | |
| 4 | * Version: MPL 1.1/GPL 2.0/LGPL 2.1 | |
| 5 | * | |
| 6 | * The contents of this file are subject to the Mozilla Public License Version | |
| 7 | * 1.1 (the "License"); you may not use this file except in compliance with | |
| 8 | * the License. You may obtain a copy of the License at | |
| 9 | * http://www.mozilla.org/MPL/ | |
| 10 | * | |
| 11 | * Software distributed under the License is distributed on an "AS IS" basis, | |
| 12 | * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License | |
| 13 | * for the specific language governing rights and limitations under the | |
| 14 | * License. | |
| 15 | * | |
| 16 | * The Original Code is Mozilla Communicator client code, released | |
| 17 | * March 31, 1998. | |
| 18 | * | |
| 19 | * The Initial Developer of the Original Code is | |
| 20 | * Netscape Communications Corporation. | |
| 21 | * Portions created by the Initial Developer are Copyright (C) 1998 | |
| 22 | * the Initial Developer. All Rights Reserved. | |
| 23 | * | |
| 24 | * Contributor(s): | |
| 25 | * | |
| 26 | * Alternatively, the contents of this file may be used under the terms of | |
| 27 | * either of the GNU General Public License Version 2 or later (the "GPL"), | |
| 28 | * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), | |
| 29 | * in which case the provisions of the GPL or the LGPL are applicable instead | |
| 30 | * of those above. If you wish to allow use of your version of this file only | |
| 31 | * under the terms of either the GPL or the LGPL, and not to allow others to | |
| 32 | * use your version of this file under the terms of the MPL, indicate your | |
| 33 | * decision by deleting the provisions above and replace them with the notice | |
| 34 | * and other provisions required by the GPL or the LGPL. If you do not delete | |
| 35 | * the provisions above, a recipient may use your version of this file under | |
| 36 | * the terms of any one of the MPL, the GPL or the LGPL. | |
| 37 | * | |
| 38 | * ***** END LICENSE BLOCK ***** */ | |
| 39 | ||
| 40 | /* | |
| 41 | * JS math package. | |
| 42 | */ | |
| 43 | #include "jsstddef.h" | |
| 44 | #include "jslibmath.h" | |
| 45 | #include <stdlib.h> | |
| 46 | #include "jstypes.h" | |
| 47 | #include "jslong.h" | |
| 48 | #include "prmjtime.h" | |
| 49 | #include "jsapi.h" | |
| 50 | #include "jsatom.h" | |
| 51 | #include "jscntxt.h" | |
| 52 | #include "jsconfig.h" | |
| 53 | #include "jslock.h" | |
| 54 | #include "jsmath.h" | |
| 55 | #include "jsnum.h" | |
| 56 | #include "jsobj.h" | |
| 57 | ||
| 58 | #ifndef M_E | |
| 59 | #define M_E 2.7182818284590452354 | |
| 60 | #endif | |
| 61 | #ifndef M_LOG2E | |
| 62 | #define M_LOG2E 1.4426950408889634074 | |
| 63 | #endif | |
| 64 | #ifndef M_LOG10E | |
| 65 | #define M_LOG10E 0.43429448190325182765 | |
| 66 | #endif | |
| 67 | #ifndef M_LN2 | |
| 68 | #define M_LN2 0.69314718055994530942 | |
| 69 | #endif | |
| 70 | #ifndef M_LN10 | |
| 71 | #define M_LN10 2.30258509299404568402 | |
| 72 | #endif | |
| 73 | #ifndef M_PI | |
| 74 | #define M_PI 3.14159265358979323846 | |
| 75 | #endif | |
| 76 | #ifndef M_SQRT2 | |
| 77 | #define M_SQRT2 1.41421356237309504880 | |
| 78 | #endif | |
| 79 | #ifndef M_SQRT1_2 | |
| 80 | #define M_SQRT1_2 0.70710678118654752440 | |
| 81 | #endif | |
| 82 | ||
| 83 | static JSConstDoubleSpec math_constants[] = { | |
| 84 | {M_E, "E", 0, {0,0,0}}, | |
| 85 | {M_LOG2E, "LOG2E", 0, {0,0,0}}, | |
| 86 | {M_LOG10E, "LOG10E", 0, {0,0,0}}, | |
| 87 | {M_LN2, "LN2", 0, {0,0,0}}, | |
| 88 | {M_LN10, "LN10", 0, {0,0,0}}, | |
| 89 | {M_PI, "PI", 0, {0,0,0}}, | |
| 90 | {M_SQRT2, "SQRT2", 0, {0,0,0}}, | |
| 91 | {M_SQRT1_2, "SQRT1_2", 0, {0,0,0}}, | |
| 92 | {0,0,0,{0,0,0}} | |
| 93 | }; | |
| 94 | ||
| 95 | static JSClass math_class = { | |
| 96 | "Math", | |
| 97 | 0, | |
| 98 | JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, | |
| 99 | JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub, | |
| 100 | JSCLASS_NO_OPTIONAL_MEMBERS | |
| 101 | }; | |
| 102 | ||
| 103 | static JSBool | |
| 104 | math_abs(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) | |
| 105 | 0 | { |
| 106 | 0 | jsdouble x, z; |
| 107 | ||
| 108 | 0 | if (!js_ValueToNumber(cx, argv[0], &x)) |
| 109 | 0 | return JS_FALSE; |
| 110 | 0 | z = fd_fabs(x); |
| 111 | 0 | return js_NewNumberValue(cx, z, rval); |
| 112 | } | |
| 113 | ||
| 114 | static JSBool | |
| 115 | math_acos(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) | |
| 116 | 0 | { |
| 117 | 0 | jsdouble x, z; |
| 118 | ||
| 119 | 0 | if (!js_ValueToNumber(cx, argv[0], &x)) |
| 120 | 0 | return JS_FALSE; |
| 121 | 0 | z = fd_acos(x); |
| 122 | 0 | return js_NewNumberValue(cx, z, rval); |
| 123 | } | |
| 124 | ||
| 125 | static JSBool | |
| 126 | math_asin(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) | |
| 127 | 0 | { |
| 128 | 0 | jsdouble x, z; |
| 129 | ||
| 130 | 0 | if (!js_ValueToNumber(cx, argv[0], &x)) |
| 131 | 0 | return JS_FALSE; |
| 132 | #ifdef XP_MAC | |
| 133 | if (x == 0) | |
| 134 | return js_NewNumberValue(cx, x, rval); | |
| 135 | #endif | |
| 136 | 0 | z = fd_asin(x); |
| 137 | 0 | return js_NewNumberValue(cx, z, rval); |
| 138 | } | |
| 139 | ||
| 140 | static JSBool | |
| 141 | math_atan(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) | |
| 142 | 0 | { |
| 143 | 0 | jsdouble x, z; |
| 144 | ||
| 145 | 0 | if (!js_ValueToNumber(cx, argv[0], &x)) |
| 146 | 0 | return JS_FALSE; |
| 147 | #ifdef XP_MAC | |
| 148 | if (x == 0) | |
| 149 | return js_NewNumberValue(cx, x, rval); | |
| 150 | #endif | |
| 151 | 0 | z = fd_atan(x); |
| 152 | 0 | return js_NewNumberValue(cx, z, rval); |
| 153 | } | |
| 154 | ||
| 155 | static JSBool | |
| 156 | math_atan2(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) | |
| 157 | 0 | { |
| 158 | 0 | jsdouble x, y, z; |
| 159 | ||
| 160 | 0 | if (!js_ValueToNumber(cx, argv[0], &x)) |
| 161 | 0 | return JS_FALSE; |
| 162 | 0 | if (!js_ValueToNumber(cx, argv[1], &y)) |
| 163 | 0 | return JS_FALSE; |
| 164 | 0 | z = fd_atan2(x, y); |
| 165 | 0 | return js_NewNumberValue(cx, z, rval); |
| 166 | } | |
| 167 | ||
| 168 | static JSBool | |
| 169 | math_ceil(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) | |
| 170 | 0 | { |
| 171 | 0 | jsdouble x, z; |
| 172 | ||
| 173 | 0 | if (!js_ValueToNumber(cx, argv[0], &x)) |
| 174 | 0 | return JS_FALSE; |
| 175 | 0 | z = fd_ceil(x); |
| 176 | 0 | return js_NewNumberValue(cx, z, rval); |
| 177 | } | |
| 178 | ||
| 179 | static JSBool | |
| 180 | math_cos(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) | |
| 181 | 0 | { |
| 182 | 0 | jsdouble x, z; |
| 183 | ||
| 184 | 0 | if (!js_ValueToNumber(cx, argv[0], &x)) |
| 185 | 0 | return JS_FALSE; |
| 186 | 0 | z = fd_cos(x); |
| 187 | 0 | return js_NewNumberValue(cx, z, rval); |
| 188 | } | |
| 189 | ||
| 190 | static JSBool | |
| 191 | math_exp(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) | |
| 192 | 0 | { |
| 193 | 0 | jsdouble x, z; |
| 194 | ||
| 195 | 0 | if (!js_ValueToNumber(cx, argv[0], &x)) |
| 196 | 0 | return JS_FALSE; |
| 197 | #ifdef _WIN32 | |
| 198 | if (!JSDOUBLE_IS_NaN(x)) { | |
| 199 | if (x == *cx->runtime->jsPositiveInfinity) { | |
| 200 | *rval = DOUBLE_TO_JSVAL(cx->runtime->jsPositiveInfinity); | |
| 201 | return JS_TRUE; | |
| 202 | } | |
| 203 | if (x == *cx->runtime->jsNegativeInfinity) { | |
| 204 | *rval = JSVAL_ZERO; | |
| 205 | return JS_TRUE; | |
| 206 | } | |
| 207 | } | |
| 208 | #endif | |
| 209 | 0 | z = fd_exp(x); |
| 210 | 0 | return js_NewNumberValue(cx, z, rval); |
| 211 | } | |
| 212 | ||
| 213 | static JSBool | |
| 214 | math_floor(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) | |
| 215 | 0 | { |
| 216 | 0 | jsdouble x, z; |
| 217 | ||
| 218 | 0 | if (!js_ValueToNumber(cx, argv[0], &x)) |
| 219 | 0 | return JS_FALSE; |
| 220 | 0 | z = fd_floor(x); |
| 221 | 0 | return js_NewNumberValue(cx, z, rval); |
| 222 | } | |
| 223 | ||
| 224 | static JSBool | |
| 225 | math_log(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) | |
| 226 | 0 | { |
| 227 | 0 | jsdouble x, z; |
| 228 | ||
| 229 | 0 | if (!js_ValueToNumber(cx, argv[0], &x)) |
| 230 | 0 | return JS_FALSE; |
| 231 | 0 | z = fd_log(x); |
| 232 | 0 | return js_NewNumberValue(cx, z, rval); |
| 233 | } | |
| 234 | ||
| 235 | static JSBool | |
| 236 | math_max(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) | |
| 237 | 0 | { |
| 238 | 0 | jsdouble x, z = *cx->runtime->jsNegativeInfinity; |
| 239 | 0 | uintN i; |
| 240 | ||
| 241 | 0 | if (argc == 0) { |
| 242 | 0 | *rval = DOUBLE_TO_JSVAL(cx->runtime->jsNegativeInfinity); |
| 243 | 0 | return JS_TRUE; |
| 244 | } | |
| 245 | 0 | for (i = 0; i < argc; i++) { |
| 246 | 0 | if (!js_ValueToNumber(cx, argv[i], &x)) |
| 247 | 0 | return JS_FALSE; |
| 248 | 0 | if (JSDOUBLE_IS_NaN(x)) { |
| 249 | 0 | *rval = DOUBLE_TO_JSVAL(cx->runtime->jsNaN); |
| 250 | 0 | return JS_TRUE; |
| 251 | } | |
| 252 | 0 | if ((x==0)&&(x==z)&&(fd_copysign(1.0,z)==-1)) |
| 253 | 0 | z = x; |
| 254 | else | |
| 255 | 0 | z = (x > z) ? x : z; |
| 256 | } | |
| 257 | 0 | return js_NewNumberValue(cx, z, rval); |
| 258 | } | |
| 259 | ||
| 260 | static JSBool | |
| 261 | math_min(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) | |
| 262 | 0 | { |
| 263 | 0 | jsdouble x, z = *cx->runtime->jsPositiveInfinity; |
| 264 | 0 | uintN i; |
| 265 | ||
| 266 | 0 | if (argc == 0) { |
| 267 | 0 | *rval = DOUBLE_TO_JSVAL(cx->runtime->jsPositiveInfinity); |
| 268 | 0 | return JS_TRUE; |
| 269 | } | |
| 270 | 0 | for (i = 0; i < argc; i++) { |
| 271 | 0 | if (!js_ValueToNumber(cx, argv[i], &x)) |
| 272 | 0 | return JS_FALSE; |
| 273 | 0 | if (JSDOUBLE_IS_NaN(x)) { |
| 274 | 0 | *rval = DOUBLE_TO_JSVAL(cx->runtime->jsNaN); |
| 275 | 0 | return JS_TRUE; |
| 276 | } | |
| 277 | 0 | if ((x==0)&&(x==z)&&(fd_copysign(1.0,x)==-1)) |
| 278 | 0 | z = x; |
| 279 | else | |
| 280 | 0 | z = (x < z) ? x : z; |
| 281 | } | |
| 282 | 0 | return js_NewNumberValue(cx, z, rval); |
| 283 | } | |
| 284 | ||
| 285 | static JSBool | |
| 286 | math_pow(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) | |
| 287 | 0 | { |
| 288 | 0 | jsdouble x, y, z; |
| 289 | ||
| 290 | 0 | if (!js_ValueToNumber(cx, argv[0], &x)) |
| 291 | 0 | return JS_FALSE; |
| 292 | 0 | if (!js_ValueToNumber(cx, argv[1], &y)) |
| 293 | 0 | return JS_FALSE; |
| 294 | 0 | z = fd_pow(x, y); |
| 295 | 0 | return js_NewNumberValue(cx, z, rval); |
| 296 | } | |
| 297 | ||
| 298 | /* | |
| 299 | * Math.random() support, lifted from java.util.Random.java. | |
| 300 | */ | |
| 301 | static void | |
| 302 | random_setSeed(JSRuntime *rt, int64 seed) | |
| 303 | 0 | { |
| 304 | 0 | int64 tmp; |
| 305 | ||
| 306 | 0 | JSLL_I2L(tmp, 1000); |
| 307 | 0 | JSLL_DIV(seed, seed, tmp); |
| 308 | 0 | JSLL_XOR(tmp, seed, rt->rngMultiplier); |
| 309 | 0 | JSLL_AND(rt->rngSeed, tmp, rt->rngMask); |
| 310 | } | |
| 311 | ||
| 312 | static void | |
| 313 | random_init(JSRuntime *rt) | |
| 314 | 0 | { |
| 315 | 0 | int64 tmp, tmp2; |
| 316 | ||
| 317 | /* Do at most once. */ | |
| 318 | 0 | if (rt->rngInitialized) |
| 319 | 0 | return; |
| 320 | 0 | rt->rngInitialized = JS_TRUE; |
| 321 | ||
| 322 | /* rt->rngMultiplier = 0x5DEECE66DL */ | |
| 323 | 0 | JSLL_ISHL(tmp, 0x5, 32); |
| 324 | 0 | JSLL_UI2L(tmp2, 0xDEECE66DL); |
| 325 | 0 | JSLL_OR(rt->rngMultiplier, tmp, tmp2); |
| 326 | ||
| 327 | /* rt->rngAddend = 0xBL */ | |
| 328 | 0 | JSLL_I2L(rt->rngAddend, 0xBL); |
| 329 | ||
| 330 | /* rt->rngMask = (1L << 48) - 1 */ | |
| 331 | 0 | JSLL_I2L(tmp, 1); |
| 332 | 0 | JSLL_SHL(tmp2, tmp, 48); |
| 333 | 0 | JSLL_SUB(rt->rngMask, tmp2, tmp); |
| 334 | ||
| 335 | /* rt->rngDscale = (jsdouble)(1L << 53) */ | |
| 336 | 0 | JSLL_SHL(tmp2, tmp, 53); |
| 337 | 0 | JSLL_L2D(rt->rngDscale, tmp2); |
| 338 | ||
| 339 | /* Finally, set the seed from current time. */ | |
| 340 | 0 | random_setSeed(rt, PRMJ_Now()); |
| 341 | } | |
| 342 | ||
| 343 | static uint32 | |
| 344 | random_next(JSRuntime *rt, int bits) | |
| 345 | 0 | { |
| 346 | 0 | int64 nextseed, tmp; |
| 347 | 0 | uint32 retval; |
| 348 | ||
| 349 | 0 | JSLL_MUL(nextseed, rt->rngSeed, rt->rngMultiplier); |
| 350 | 0 | JSLL_ADD(nextseed, nextseed, rt->rngAddend); |
| 351 | 0 | JSLL_AND(nextseed, nextseed, rt->rngMask); |
| 352 | 0 | rt->rngSeed = nextseed; |
| 353 | 0 | JSLL_USHR(tmp, nextseed, 48 - bits); |
| 354 | 0 | JSLL_L2I(retval, tmp); |
| 355 | 0 | return retval; |
| 356 | } | |
| 357 | ||
| 358 | static jsdouble | |
| 359 | random_nextDouble(JSRuntime *rt) | |
| 360 | 0 | { |
| 361 | 0 | int64 tmp, tmp2; |
| 362 | 0 | jsdouble d; |
| 363 | ||
| 364 | 0 | JSLL_ISHL(tmp, random_next(rt, 26), 27); |
| 365 | 0 | JSLL_UI2L(tmp2, random_next(rt, 27)); |
| 366 | 0 | JSLL_ADD(tmp, tmp, tmp2); |
| 367 | 0 | JSLL_L2D(d, tmp); |
| 368 | 0 | return d / rt->rngDscale; |
| 369 | } | |
| 370 | ||
| 371 | static JSBool | |
| 372 | math_random(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) | |
| 373 | 0 | { |
| 374 | 0 | JSRuntime *rt; |
| 375 | 0 | jsdouble z; |
| 376 | ||
| 377 | 0 | rt = cx->runtime; |
| 378 | 0 | JS_LOCK_RUNTIME(rt); |
| 379 | 0 | random_init(rt); |
| 380 | 0 | z = random_nextDouble(rt); |
| 381 | 0 | JS_UNLOCK_RUNTIME(rt); |
| 382 | 0 | return js_NewNumberValue(cx, z, rval); |
| 383 | } | |
| 384 | ||
| 385 | static JSBool | |
| 386 | math_round(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) | |
| 387 | 0 | { |
| 388 | 0 | jsdouble x, z; |
| 389 | ||
| 390 | 0 | if (!js_ValueToNumber(cx, argv[0], &x)) |
| 391 | 0 | return JS_FALSE; |
| 392 | 0 | z = fd_copysign(fd_floor(x + 0.5), x); |
| 393 | 0 | return js_NewNumberValue(cx, z, rval); |
| 394 | } | |
| 395 | ||
| 396 | static JSBool | |
| 397 | math_sin(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) | |
| 398 | 0 | { |
| 399 | 0 | jsdouble x, z; |
| 400 | ||
| 401 | 0 | if (!js_ValueToNumber(cx, argv[0], &x)) |
| 402 | 0 | return JS_FALSE; |
| 403 | 0 | z = fd_sin(x); |
| 404 | 0 | return js_NewNumberValue(cx, z, rval); |
| 405 | } | |
| 406 | ||
| 407 | static JSBool | |
| 408 | math_sqrt(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) | |
| 409 | 0 | { |
| 410 | 0 | jsdouble x, z; |
| 411 | ||
| 412 | 0 | if (!js_ValueToNumber(cx, argv[0], &x)) |
| 413 | 0 | return JS_FALSE; |
| 414 | 0 | z = fd_sqrt(x); |
| 415 | 0 | return js_NewNumberValue(cx, z, rval); |
| 416 | } | |
| 417 | ||
| 418 | static JSBool | |
| 419 | math_tan(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) | |
| 420 | 0 | { |
| 421 | 0 | jsdouble x, z; |
| 422 | ||
| 423 | 0 | if (!js_ValueToNumber(cx, argv[0], &x)) |
| 424 | 0 | return JS_FALSE; |
| 425 | 0 | z = fd_tan(x); |
| 426 | 0 | return js_NewNumberValue(cx, z, rval); |
| 427 | } | |
| 428 | ||
| 429 | #if JS_HAS_TOSOURCE | |
| 430 | static JSBool | |
| 431 | math_toSource(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, | |
| 432 | jsval *rval) | |
| 433 | 0 | { |
| 434 | 0 | *rval = ATOM_KEY(cx->runtime->atomState.MathAtom); |
| 435 | 0 | return JS_TRUE; |
| 436 | } | |
| 437 | #endif | |
| 438 | ||
| 439 | static JSFunctionSpec math_static_methods[] = { | |
| 440 | #if JS_HAS_TOSOURCE | |
| 441 | {js_toSource_str, math_toSource, 0, 0, 0}, | |
| 442 | #endif | |
| 443 | {"abs", math_abs, 1, 0, 0}, | |
| 444 | {"acos", math_acos, 1, 0, 0}, | |
| 445 | {"asin", math_asin, 1, 0, 0}, | |
| 446 | {"atan", math_atan, 1, 0, 0}, | |
| 447 | {"atan2", math_atan2, 2, 0, 0}, | |
| 448 | {"ceil", math_ceil, 1, 0, 0}, | |
| 449 | {"cos", math_cos, 1, 0, 0}, | |
| 450 | {"exp", math_exp, 1, 0, 0}, | |
| 451 | {"floor", math_floor, 1, 0, 0}, | |
| 452 | {"log", math_log, 1, 0, 0}, | |
| 453 | {"max", math_max, 2, 0, 0}, | |
| 454 | {"min", math_min, 2, 0, 0}, | |
| 455 | {"pow", math_pow, 2, 0, 0}, | |
| 456 | {"random", math_random, 0, 0, 0}, | |
| 457 | {"round", math_round, 1, 0, 0}, | |
| 458 | {"sin", math_sin, 1, 0, 0}, | |
| 459 | {"sqrt", math_sqrt, 1, 0, 0}, | |
| 460 | {"tan", math_tan, 1, 0, 0}, | |
| 461 | {0,0,0,0,0} | |
| 462 | }; | |
| 463 | ||
| 464 | JSObject * | |
| 465 | js_InitMathClass(JSContext *cx, JSObject *obj) | |
| 466 | 17 | { |
| 467 | 17 | JSObject *Math; |
| 468 | ||
| 469 | 17 | Math = JS_DefineObject(cx, obj, "Math", &math_class, NULL, 0); |
| 470 | 17 | if (!Math) |
| 471 | 0 | return NULL; |
| 472 | 17 | if (!JS_DefineFunctions(cx, Math, math_static_methods)) |
| 473 | 0 | return NULL; |
| 474 | 17 | if (!JS_DefineConstDoubles(cx, Math, math_constants)) |
| 475 | 0 | return NULL; |
| 476 | 17 | return Math; |