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author | Ryan Dahl <ry@tinyclouds.org> | 2010-05-10 09:58:20 -0700 |
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committer | Ryan Dahl <ry@tinyclouds.org> | 2010-05-10 09:58:20 -0700 |
commit | 615d8906226ffc56238b44141cdb3374f47e805a (patch) | |
tree | 3850f314701edf5156ec52f296eac9f38959bbfe /deps/v8/src/dtoa.cc | |
parent | 8ab238e7de8429961ce4d6fd9114555e5df90a13 (diff) | |
download | android-node-v8-615d8906226ffc56238b44141cdb3374f47e805a.tar.gz android-node-v8-615d8906226ffc56238b44141cdb3374f47e805a.tar.bz2 android-node-v8-615d8906226ffc56238b44141cdb3374f47e805a.zip |
Upgrade V8 to 2.2.9
Diffstat (limited to 'deps/v8/src/dtoa.cc')
-rw-r--r-- | deps/v8/src/dtoa.cc | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/deps/v8/src/dtoa.cc b/deps/v8/src/dtoa.cc new file mode 100644 index 0000000000..e3dcbf2d61 --- /dev/null +++ b/deps/v8/src/dtoa.cc @@ -0,0 +1,77 @@ +// Copyright 2010 the V8 project authors. All rights reserved. +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following +// disclaimer in the documentation and/or other materials provided +// with the distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived +// from this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include <math.h> + +#include "v8.h" +#include "dtoa.h" + +#include "double.h" +#include "fast-dtoa.h" +#include "fixed-dtoa.h" + +namespace v8 { +namespace internal { + +bool DoubleToAscii(double v, DtoaMode mode, int requested_digits, + Vector<char> buffer, int* sign, int* length, int* point) { + ASSERT(!Double(v).IsSpecial()); + ASSERT(mode == DTOA_SHORTEST || requested_digits >= 0); + + if (Double(v).Sign() < 0) { + *sign = 1; + v = -v; + } else { + *sign = 0; + } + + if (v == 0) { + buffer[0] = '0'; + buffer[1] = '\0'; + *length = 1; + *point = 1; + return true; + } + + if (mode == DTOA_PRECISION && requested_digits == 0) { + buffer[0] = '\0'; + *length = 0; + return true; + } + + switch (mode) { + case DTOA_SHORTEST: + return FastDtoa(v, buffer, length, point); + case DTOA_FIXED: + return FastFixedDtoa(v, requested_digits, buffer, length, point); + default: + break; + } + return false; +} + +} } // namespace v8::internal |