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Use ldexp instead of pow for more accuracy.

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Original patch by net147@gmail.com: https://chromiumcodereview.appspot.com/10026011/

BUG=
TEST=cctest/test-conversions/Octal

Review URL: https://chromiumcodereview.appspot.com/10103030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11356 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
yangguo@chromium.org 2012-04-17 13:16:25 +00:00
parent b2024c531c
commit ac72f5c441
1 changed files with 1 additions and 3 deletions
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4
src/conversions-inl.h
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@ -228,9 +228,7 @@ double InternalStringToIntDouble(UnicodeCache* unicode_cache,
}
ASSERT(number != 0);
// The double could be constructed faster from number (mantissa), exponent
// and sign. Assuming it's a rare case more simple code is used.
return static_cast<double>(negative ? -number : number) * pow(2.0, exponent);
return ldexp(static_cast<double>(negative ? -number : number), exponent);
}