diff options
Diffstat (limited to 'src/qml/jsruntime/qv4mathobject.cpp')
| -rw-r--r-- | src/qml/jsruntime/qv4mathobject.cpp | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/src/qml/jsruntime/qv4mathobject.cpp b/src/qml/jsruntime/qv4mathobject.cpp index df1c8c6049..5528409b40 100644 --- a/src/qml/jsruntime/qv4mathobject.cpp +++ b/src/qml/jsruntime/qv4mathobject.cpp @@ -86,17 +86,18 @@ Heap::MathObject::MathObject() m->defineDefaultProperty(QStringLiteral("tan"), QV4::MathObject::method_tan, 1); } -/* copies the sign from y to x and returns the result */ -static double copySign(double x, double y) +#ifdef Q_OS_ANDROID +// C++11's std::copysign is missing in the std namespace, so get it from the root namespace (math.h) +static Q_ALWAYS_INLINE double copySign(double x, double y) { - uchar *xch = (uchar *)&x; - uchar *ych = (uchar *)&y; - if (QSysInfo::ByteOrder == QSysInfo::BigEndian) - xch[0] = (xch[0] & 0x7f) | (ych[0] & 0x80); - else - xch[7] = (xch[7] & 0x7f) | (ych[7] & 0x80); - return x; + return ::copysign(x, y); +} +#else // Ok, we have a proper C++11 standard library +static Q_ALWAYS_INLINE double copySign(double x, double y) +{ + return std::copysign(x, y); } +#endif ReturnedValue MathObject::method_abs(CallContext *context) { |