Efficient Binary-Decimal and Decimal-Binary Conversion Routines for IEEE Doubles, version 3.1.5
Used in Qt Core. Configure with -system-doubleconversion or -no-doubleconversion to avoid.
The sources can be found in qtbase-opensource-src-4Abjti/qtbase-opensource-src-5.15.2+dfsg/src/3rdparty/double-conversion.
Copyright 2006-2012, the V8 project authors
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