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| ****************************************************************************/ |
| #ifndef QMLJS_MATH_H |
| #define QMLJS_MATH_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <qglobal.h> |
| |
| #include <private/qv4staticvalue_p.h> |
| #include <QtCore/qnumeric.h> |
| #include <QtCore/private/qnumeric_p.h> |
| #include <cmath> |
| |
| #if defined(Q_CC_GNU) |
| #define QMLJS_READONLY __attribute((const)) |
| #else |
| #define QMLJS_READONLY |
| #endif |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace QV4 { |
| |
| static inline QMLJS_READONLY ReturnedValue add_int32(int a, int b) |
| { |
| int result; |
| if (Q_UNLIKELY(add_overflow(a, b, &result))) |
| return StaticValue::fromDouble(static_cast<double>(a) + b).asReturnedValue(); |
| return StaticValue::fromInt32(result).asReturnedValue(); |
| } |
| |
| static inline QMLJS_READONLY ReturnedValue sub_int32(int a, int b) |
| { |
| int result; |
| if (Q_UNLIKELY(sub_overflow(a, b, &result))) |
| return StaticValue::fromDouble(static_cast<double>(a) - b).asReturnedValue(); |
| return StaticValue::fromInt32(result).asReturnedValue(); |
| } |
| |
| static inline QMLJS_READONLY ReturnedValue mul_int32(int a, int b) |
| { |
| int result; |
| if (Q_UNLIKELY(mul_overflow(a, b, &result))) |
| return StaticValue::fromDouble(static_cast<double>(a) * b).asReturnedValue(); |
| return StaticValue::fromInt32(result).asReturnedValue(); |
| } |
| |
| } |
| |
| QT_END_NAMESPACE |
| |
| #ifdef QMLJS_READONLY |
| #undef QMLJS_READONLY |
| #endif |
| |
| #endif // QMLJS_MATH_H |