OLD | NEW |
1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
(...skipping 339 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
350 | 350 |
351 if (!allow_trailing_junk && AdvanceToNonspace(¤t, end)) { | 351 if (!allow_trailing_junk && AdvanceToNonspace(¤t, end)) { |
352 return JUNK_STRING_VALUE; | 352 return JUNK_STRING_VALUE; |
353 } | 353 } |
354 | 354 |
355 ASSERT(buffer_pos < kBufferSize); | 355 ASSERT(buffer_pos < kBufferSize); |
356 buffer[buffer_pos++] = '\0'; | 356 buffer[buffer_pos++] = '\0'; |
357 return sign ? -gay_strtod(buffer, NULL) : gay_strtod(buffer, NULL); | 357 return sign ? -gay_strtod(buffer, NULL) : gay_strtod(buffer, NULL); |
358 } | 358 } |
359 | 359 |
360 // TODO(serya): The following legacy code causes accumulating rounding | 360 // The following code causes accumulating rounding error for numbers greater |
361 // error for number greater than ~2^56. It should be rewritten using long | 361 // than ~2^56. It's explicitly allowed in the spec: "if R is not 2, 4, 8, 10, |
362 // arithmetic. | 362 // 16, or 32, then mathInt may be an implementation-dependent approximation to |
| 363 // the mathematical integer value" (15.1.2.2). |
363 | 364 |
364 int lim_0 = '0' + (radix < 10 ? radix : 10); | 365 int lim_0 = '0' + (radix < 10 ? radix : 10); |
365 int lim_a = 'a' + (radix - 10); | 366 int lim_a = 'a' + (radix - 10); |
366 int lim_A = 'A' + (radix - 10); | 367 int lim_A = 'A' + (radix - 10); |
367 | 368 |
368 // NOTE: The code for computing the value may seem a bit complex at | 369 // NOTE: The code for computing the value may seem a bit complex at |
369 // first glance. It is structured to use 32-bit multiply-and-add | 370 // first glance. It is structured to use 32-bit multiply-and-add |
370 // loops as long as possible to avoid loosing precision. | 371 // loops as long as possible to avoid loosing precision. |
371 | 372 |
372 double v = 0.0; | 373 double v = 0.0; |
(...skipping 720 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
1093 // Allocate result and fill in the parts. | 1094 // Allocate result and fill in the parts. |
1094 StringBuilder builder(result_size + 1); | 1095 StringBuilder builder(result_size + 1); |
1095 builder.AddSubstring(integer_buffer + integer_pos + 1, integer_part_size); | 1096 builder.AddSubstring(integer_buffer + integer_pos + 1, integer_part_size); |
1096 if (decimal_pos > 0) builder.AddCharacter('.'); | 1097 if (decimal_pos > 0) builder.AddCharacter('.'); |
1097 builder.AddSubstring(decimal_buffer, decimal_pos); | 1098 builder.AddSubstring(decimal_buffer, decimal_pos); |
1098 return builder.Finalize(); | 1099 return builder.Finalize(); |
1099 } | 1100 } |
1100 | 1101 |
1101 | 1102 |
1102 } } // namespace v8::internal | 1103 } } // namespace v8::internal |
OLD | NEW |