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Qt 6.x
The Qt SDK
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Qt 6.x
The Qt SDK
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#include <QtCore/qtconfigmacros.h>#include <QtCore/qtcoreexports.h>#include <QtCore/qtypes.h>#include <cmath>#include <limits>#include <type_traits>
Include dependency graph for qnumeric.h: This graph shows which files directly or indirectly include this file:Go to the source code of this file.
Namespaces | |
| namespace | QtPrivate |
| \macro QT_NAMESPACE | |
Macros | |
| #define | Q_INFINITY (QT_PREPEND_NAMESPACE(qInf)()) |
| #define | Q_QNAN (QT_PREPEND_NAMESPACE(qQNaN)()) |
Functions | |
| template<typename T > | |
| QT_BEGIN_NAMESPACE constexpr std::enable_if< std::is_integral< T >::value, bool >::type | qIsInf (T) |
| template<typename T > | |
| constexpr std::enable_if< std::is_integral< T >::value, bool >::type | qIsNaN (T) |
| template<typename T > | |
| constexpr std::enable_if< std::is_integral< T >::value, bool >::type | qIsFinite (T) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool | qIsInf (double d) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool | qIsNaN (double d) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool | qIsFinite (double d) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION int | qFpClassify (double val) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool | qIsInf (float f) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool | qIsNaN (float f) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool | qIsFinite (float f) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION int | qFpClassify (float val) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION double | qQNaN () |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION double | qInf () |
| Q_CORE_EXPORT quint32 | qFloatDistance (float a, float b) |
| Q_CORE_EXPORT quint64 | qFloatDistance (double a, double b) |
| template<typename T > | |
| std::enable_if_t< std::is_unsigned_v< T >, bool > | qAddOverflow (T v1, T v2, T *r) |
| template<typename T > | |
| std::enable_if_t< std::is_signed_v< T >, bool > | qAddOverflow (T v1, T v2, T *r) |
| template<typename T > | |
| std::enable_if_t< std::is_unsigned_v< T >, bool > | qSubOverflow (T v1, T v2, T *r) |
| template<typename T > | |
| std::enable_if_t< std::is_signed_v< T >, bool > | qSubOverflow (T v1, T v2, T *r) |
| template<typename T > | |
| std::enable_if_t< std::is_unsigned_v< T >||std::is_signed_v< T >, bool > | qMulOverflow (T v1, T v2, T *r) |
| template<typename T , T V2> | |
| bool | qAddOverflow (T v1, std::integral_constant< T, V2 >, T *r) |
| template<auto V2, typename T > | |
| bool | qAddOverflow (T v1, T *r) |
| template<typename T , T V2> | |
| bool | qSubOverflow (T v1, std::integral_constant< T, V2 >, T *r) |
| template<auto V2, typename T > | |
| bool | qSubOverflow (T v1, T *r) |
| template<typename T , T V2> | |
| bool | qMulOverflow (T v1, std::integral_constant< T, V2 >, T *r) |
| template<auto V2, typename T > | |
| bool | qMulOverflow (T v1, T *r) |
| template<typename T > | |
| constexpr T | qAbs (const T &t) |
| constexpr int | qRound (double d) |
| constexpr int | qRound (float d) |
| constexpr qint64 | qRound64 (double d) |
| constexpr qint64 | qRound64 (float d) |
| template<typename T > | |
| constexpr const T & | QtPrivate::min (const T &a, const T &b) |
| constexpr bool | qFuzzyCompare (double p1, double p2) |
| constexpr bool | qFuzzyCompare (float p1, float p2) |
| constexpr bool | qFuzzyIsNull (double d) |
| constexpr bool | qFuzzyIsNull (float f) |
| QT_WARNING_PUSH QT_WARNING_DISABLE_FLOAT_COMPARE constexpr bool | qIsNull (double d) noexcept |
| constexpr bool | qIsNull (float f) noexcept |
| QT_WARNING_POP int | qIntCast (double f) |
| int | qIntCast (float f) |
| #define Q_INFINITY (QT_PREPEND_NAMESPACE(qInf)()) |
Definition at line 77 of file qnumeric.h.
| #define Q_QNAN (QT_PREPEND_NAMESPACE(qQNaN)()) |
Definition at line 81 of file qnumeric.h.
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inlineconstexpr |
Definition at line 328 of file qnumeric.h.
Referenced by QQuickSelectionRectanglePrivate::QQuickSelectionRectanglePrivate(), QtPrivate::QMovableArrayOps< T >::Inserter::~Inserter(), QGraphicsSceneBspTreeIndexPrivate::_q_updateIndex(), QtPrivate::QHypotHelper< T >::add(), QBezier::addToPolygon(), QBezier::addToPolygon(), QQuick3DParticleScaleAffector::affectParticle(), QQuickWanderAffector::affectParticle(), QAndroidCameraSession::applyResolution(), QQuickContext2D::arc(), avfVideoSettings(), QSSGBounds3::basisExtent(), bestSizeScaleMatch(), bestStyle(), QWaylandInputMethodEventBuilder::buildCommit(), QV4DataCollector::buildFrame(), QQuickPathViewPrivate::calcCurrentIndex(), QSpinBoxPrivate::calculateAdaptiveDecimalStep(), QDoubleSpinBoxPrivate::calculateAdaptiveDecimalStep(), calculateVideoFrameStride(), QuickTestUtil::callerLine(), QV4::ExecutionEngine::catchExceptionAsQmlError(), QGeoTiledMapPrivate::changeCameraData(), QQuickDeliveryAgentPrivate::checkIfDoubleTapped(), QWidgetWindowPrivate::closestAcceptableGeometry(), QListViewPrivate::closestIndex(), QQuickVisualTestUtils::compareImages(), computeBBox(), QFreetypeFace::computeSize(), QSSGPlane::contains(), convertPath(), convertWeights(), QWebMercator::coordinateInterpolation(), copyImageData(), createPixmapCursorFromData(), QQuickSwipePrivate::createRelevantItemForDistance(), QScrollerPrivate::createScrollingSegments(), QV4DebuggerAgent::debuggerPaused(), QCoreGraphicsPaintEnginePrivate::devicePixelSize(), directorySizeDistance(), do_write_jpeg_image(), QLocaleData::doubleToString(), QQuickDeliveryAgentPrivate::dragOverThreshold(), QQuickPointerHandlerPrivate::dragOverThreshold(), QQuickDeliveryAgentPrivate::dragOverThreshold(), QQuickDeliveryAgentPrivate::dragOverThreshold(), QQuickPointerHandlerPrivate::dragOverThreshold(), QPainterPrivate::draw_helper(), QOpenGL2PaintEngineExPrivate::drawCachedGlyphs(), QRasterPaintEngine::drawImage(), drawLine(), drawLineAA(), QWin32PrintEngine::drawPixmap(), QRasterPaintEngine::drawTiledPixmap(), dtoString(), epsilonCompare(), QJSEngine::evaluate(), QGeoRectanglePrivate::extendRectangle(), FDot16FixedDiv(), fetchTransformedBilinear(), fetchTransformedBilinear_simple_scale_helper(), fetchTransformedBilinearARGB32PM(), fetchTransformedBilinearARGB32PM_simple_scale_helper(), QRasterPlatformPixmap::fill(), QQuickSwipePrivate::finishTransition(), QQuickFlickablePrivate::fixup(), QQuickGridViewPrivate::fixup(), QQuickListViewPrivate::fixup(), QQuickFlickablePrivate::flick(), QQuickGridViewPrivate::flick(), QQuickListViewPrivate::flick(), QBackingStore::flush(), QLocale::formattedDataSize(), QWindowsGeometryHint::frame(), QWindowsGeometryHint::frameOnPrimaryScreen(), QVideoFrameFormatPrivate::frameRatesEqual(), QOCIDateTime::fromOCIDateTime(), QuickTestResult::fuzzyCompare(), QQuickMatrix4x4ValueType::fuzzyEquals(), QQuickQuaternionValueType::fuzzyEquals(), QQuickVector2DValueType::fuzzyEquals(), QQuickVector3DValueType::fuzzyEquals(), QQuickVector4DValueType::fuzzyEquals(), fuzzyIsNull(), QPdfDocument::getSelection(), good_offset(), QQuickDrawerPrivate::grabMouse(), QScrollerPrivate::handleDrag(), QQuickPathViewPrivate::handleMouseMoveEvent(), QQuickPathViewPrivate::handleMousePressEvent(), QQuickPathViewPrivate::handleMouseReleaseEvent(), QQuickDragHandler::handlePointerEventImpl(), QQuickPinchHandler::handlePointerEventImpl(), QQuickRangeSliderPrivate::handlePress(), QQuickFlickablePrivate::handlePressEvent(), QQuickFlickablePrivate::handleReleaseEvent(), QPdfDocumentPrivate::hitTest(), QColorSpacePrivate::identifyColorSpace(), imageFromWinHBITMAP_GetDiBits(), QCoreTextFontEngine::init(), QWaylandQtTextInputMethod::inputMethodQuery(), QWaylandTextInputPrivate::inputMethodQuery(), QWaylandTextInputV4Private::inputMethodQuery(), QSSGClipPlane::intersectWithLine(), QQuickDialPrivate::isLargeChange(), QIntersectionPoint::isOnLine(), QQuickContext2D::isPointInPath(), quant::isSane(), QSimplexConstraint::isSatisfied(), quant::isUnit(), QStroker::joinPoints(), jsStack(), QTextDocumentLayoutPrivate::layoutFlow(), QWindowsFontDatabaseBase::LOGFONT_to_QFont(), QPoint::manhattanLength(), QPointF::manhattanLength(), QDoubleVector2D::manhattanLength(), QScanConverter::mergeCurve(), QV4::DatePrototype::method_toISOString(), QFontEngine::minRightBearing(), QHeaderView::mouseMoveEvent(), QQuickPressHandler::mouseMoveEvent(), QQuickTextInput::mouseMoveEvent(), QTabBar::mouseReleaseEvent(), QAbstractButtonPrivate::moveFocus(), QToolBarAreaLayoutInfo::moveToolBar(), QScrollerPrivate::moveWhilePressed(), QScrollerPrivate::nextSnapPos(), operator<<(), QTextEditPrivate::pageUpDown(), QGraphicsEllipseItem::paint(), QQuickSvgParser::pathArc(), pathArc(), QTriangulator< T >::polyline(), QMenuSloppyState::processMouseEvent(), QGuiApplicationPrivate::processMouseEvent(), q_coordinateShortestInterpolator(), Q_LOGGING_CATEGORY(), qFuzzyCompare(), qFuzzyCompare(), qFuzzyCompare(), qFuzzyIsNull(), qFuzzyIsNull(), qFuzzyIsNull(), QImageScale::qimageCalcScaleInfo(), QImageScale::qimageCalcXPoints(), QImageScale::qimageCalcYPoints(), qRealToFraction(), qt_create_image_data(), qt_device_format_pixel_aspect_ratio(), qt_find_best_framerate_match(), qt_find_best_resolution_match(), qt_find_supported_framerate_range(), qt_scaleForTransform(), qt_scrollRectInImage(), QCoreTextFontEngine::qtWeightFromCFWeight(), QRasterizer::rasterizeLine(), read_dib_infoheader(), QSwipeGestureRecognizer::recognize(), QIBaseResult::record(), QIBaseDriver::record(), AndroidPositioning::registerPositionInfoSource(), QtConcurrent::ThreadEngineBarrier::release(), QtConcurrent::ThreadEngineBarrier::releaseUnlessLast(), QProgressBarPrivate::repaintRequired(), replaceArgEscapes(), QWindowsTabletDeviceData::scaleCoordinates(), QTreeView::scrollContentsBy(), QQuickTableViewPrivate::scrollToColumn(), QQuickTableViewPrivate::scrollToRow(), QTreeViewPrivate::select(), QWidgetTextControl::selectAll(), QQuickTextControl::selectAll(), Utils::TextCursor::selectedText(), QWaylandTextInputPrivate::sendInputMethodEvent(), QSimplex::setConstraints(), QQuickTextPrivate::setLineGeometry(), QQuickDialPrivate::setPosition(), QMacPrintEngine::setProperty(), QAbstractSliderPrivate::setSteps(), setupCameraForShadowMap(), QSpanData::setupMatrix(), QPen::setWidthF(), QPaintEngineEx::shouldDrawCachedGlyphs(), QQuickPathViewPrivate::snapToIndex(), QBezier::tAtLength(), QDoubleSpinBox::textFromValue(), QSpinBox::textFromValue(), QtAndroidAccessibility::textFromValue(), QBezier::tForY(), toOffsetString(), QGeoCoordinate::toString(), QX11PlatformPixmap::transformed(), QQuickSpringAnimation::transition(), QTriangulator< T >::triangulate(), QLineF::unitVector(), updateBBox(), QSpringAnimation::updateCurrentTime(), QQuickBoundaryReturnJob::updateCurrentTime(), QSGBasicInternalImageNode::updateGeometry(), QSGBasicInternalImageNode::updateGeometry(), QOpenGL2PaintEngineExPrivate::updateMatrix(), QRasterPaintEnginePrivate::updateMatrixData(), QQuickSpringAnimationPrivate::updateMode(), QQuickRectangle::updatePaintNode(), QQuickShaderEffectSource::updatePaintNode(), QSpatialSoundPrivate::updateRoomEffects(), QAudioEnginePrivate::updateRooms(), QQuick3DTexture::updateSpatialNode(), QtWaylandClient::QWaylandTextInputv1::updateState(), QtWaylandClient::QWaylandTextInputv2::updateState(), QQuickMultiPointTouchArea::updateTouchData(), QT_BEGIN_NAMESPACE::QQuickShapeCurveMaterialShader::updateUniformData(), QQuickShapeStrokeMaterialShader::updateUniformData(), QSGDistanceFieldTextMaterialRhiShader::updateUniformData(), v4StackTrace(), QIntValidator::validate(), QDoubleValidatorPrivate::validateWithLocale(), AVFMediaPlayer::videoOrientationForAssetTrack(), QQuickFlickablePrivate::viewportAxisMoved(), QGeoProjectionWebMercator::visibleRegion(), QQuickFlickable::xflick(), QTextLine::xToCursor(), and QQuickFlickable::yflick().
| template< typename T, T V2 > bool qAddOverflow | ( | T | v1, |
| std::integral_constant< T, V2 > | , | ||
| T * | r | ||
| ) |
Equivalent to qAddOverflow(v1, v2, r) with v1 as first argument, the compile time constant V2 as second argument, and r as third argument.
Definition at line 253 of file qnumeric.h.
References qAddOverflow().
Here is the call graph for this function:| template< auto V2, typename T > bool qAddOverflow | ( | T | v1, |
| T * | r | ||
| ) |
Equivalent to qAddOverflow(v1, v2, r) with v1 as first argument, the compile time constant V2 as second argument, and r as third argument.
Definition at line 258 of file qnumeric.h.
References qAddOverflow().
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inline |
Definition at line 113 of file qnumeric.h.
Referenced by QV4::add_int32(), add_saturate(), QDate::addDays(), QDateTime::addMSecs(), QImageData::calculateImageParameters(), QTimeZonePrivate::dataForLocalTime(), daysAndMillisOverflow(), QDateTimePrivate::expressUtcAsLocal(), findSectionTable(), findStringTable(), Generator::generateCode(), QDateTimePrivate::localStateAtMillis(), qAddOverflow(), qAddOverflow(), qCalculateBlockSize(), qMulOverflow(), QCborStreamReaderPrivate::readStringChunk_byte(), reserveExtraBytes(), QDateTime::setMSecsSinceEpoch(), and QV4::stringToArrayIndex().
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inline |
Definition at line 121 of file qnumeric.h.
References s2.
| Q_CORE_EXPORT quint64 qFloatDistance | ( | double | a, |
| double | b | ||
| ) |
| Q_CORE_EXPORT quint32 qFloatDistance | ( | float | a, |
| float | b | ||
| ) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION int qFpClassify | ( | double | val | ) |
Definition at line 98 of file qnumeric.cpp.
References qt_fpclassify().
Here is the call graph for this function:| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION int qFpClassify | ( | float | val | ) |
Definition at line 99 of file qnumeric.cpp.
References qt_fpclassify().
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constexpr |
Definition at line 369 of file qnumeric.h.
References QtPrivate::min(), p1, p2, and qAbs().
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constexpr |
Definition at line 374 of file qnumeric.h.
References QtPrivate::min(), p1, p2, and qAbs().
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constexpr |
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constexpr |
Definition at line 384 of file qnumeric.h.
References qAbs().
Here is the call graph for this function:| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION double qInf | ( | ) |
Referenced by QDeclarativeGeoMapItemUtils::boundingRectangleFromList(), QDeclarativeGeoMapItemUtils::clipPolygon(), computeBBox(), QPSQLResult::data(), QQuickDeliveryAgentPrivate::deliverTouchAsMouse(), QDeclarativeGeoMapItemUtils::distanceSqrPointLine(), QTextStreamPrivate::getReal(), QV4::NumberPrototype::init(), QQuickPageIndicatorPrivate::itemAt(), QV4::Compiler::Codegen::Reference::loadInAccumulator(), QV4::StringPrototype::method_lastIndexOf(), QV4::StringPrototype::method_substr(), QBasicDrag::startDrag(), updateBBox(), QAudioEnginePrivate::updateRooms(), and writeDouble().
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inline |
Definition at line 404 of file qnumeric.h.
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inline |
Definition at line 405 of file qnumeric.h.
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsFinite | ( | double | d | ) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsFinite | ( | float | f | ) |
|
constexpr |
Definition at line 56 of file qnumeric.h.
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsInf | ( | double | d | ) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsInf | ( | float | f | ) |
|
constexpr |
Definition at line 50 of file qnumeric.h.
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsNaN | ( | double | d | ) |
| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsNaN | ( | float | f | ) |
|
constexpr |
Definition at line 53 of file qnumeric.h.
|
constexprnoexcept |
Definition at line 392 of file qnumeric.h.
References d.
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constexprnoexcept |
Definition at line 397 of file qnumeric.h.
| template< typename T, T V2 > bool qMulOverflow | ( | T | v1, |
| std::integral_constant< T, V2 > | , | ||
| T * | r | ||
| ) |
Equivalent to qMulOverflow(v1, v2, r) with v1 as first argument, the compile time constant V2 as second argument, and r as third argument. This can be faster than calling the version with only variable arguments.
Definition at line 273 of file qnumeric.h.
References qMulOverflow(), and v1.
Here is the call graph for this function:| template< auto V2, typename T > bool qMulOverflow | ( | T | v1, |
| T * | r | ||
| ) |
Equivalent to qMulOverflow(v1, v2, r) with v1 as first argument, the compile time constant V2 as second argument, and r as third argument. This can be faster than calling the version with only variable arguments.
Definition at line 320 of file qnumeric.h.
References qAddOverflow(), and qMulOverflow().
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inline |
Definition at line 182 of file qnumeric.h.
Referenced by QDateTime::addSecs(), QImageData::calculateImageParameters(), convertToExtendedType(), daysAndMillisOverflow(), QDateTimePrivate::expressUtcAsLocal(), QV4::mul_int32(), qCalculateBlockSize(), qMulOverflow(), qMulOverflow(), QAstcHandler::read(), QDateTime::setSecsSinceEpoch(), QV4::stringToArrayIndex(), and QV4::TypedArrayCtor::virtualCallAsConstructor().
Here is the caller graph for this function:| Q_CORE_EXPORT Q_DECL_CONST_FUNCTION double qQNaN | ( | ) |
Referenced by QGeoPositionInfo::attribute(), QGeoProjectionWebMercator::coordinateToItemPosition(), QPSQLResult::data(), QGeoProjectionWebMercator::fitViewportToGeoRectangle(), QDeclarativeGeoMap::fromCoordinate(), QTextStreamPrivate::getReal(), QGeoRectangle::height(), QV4::Compiler::Codegen::Reference::loadInAccumulator(), MakeDay(), MakeTime(), QV4::DatePrototype::method_UTC(), QV4::RuntimeHelpers::stringToNumber(), QGeoRectangle::width(), and writeDouble().
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inlineconstexpr |
Definition at line 353 of file qnumeric.h.
References d.
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inlineconstexpr |
Definition at line 355 of file qnumeric.h.
References d.
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inlineconstexpr |
Definition at line 358 of file qnumeric.h.
References d.
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inlineconstexpr |
Definition at line 360 of file qnumeric.h.
References d.
| template< typename T, T V2 > bool qSubOverflow | ( | T | v1, |
| std::integral_constant< T, V2 > | , | ||
| T * | r | ||
| ) |
Equivalent to qSubOverflow(v1, v2, r) with v1 as first argument, the compile time constant V2 as second argument, and r as third argument.
Definition at line 263 of file qnumeric.h.
References qSubOverflow().
Here is the call graph for this function:| template< auto V2, typename T > bool qSubOverflow | ( | T | v1, |
| T * | r | ||
| ) |
Equivalent to qSubOverflow(v1, v2, r) with v1 as first argument, the compile time constant V2 as second argument, and r as third argument.
Definition at line 268 of file qnumeric.h.
References qSubOverflow().
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inline |
Definition at line 153 of file qnumeric.h.
Referenced by QTimeZonePrivate::dataForLocalTime(), QDateTimePrivate::expressUtcAsLocal(), qSubOverflow(), qSubOverflow(), and QV4::sub_int32().
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inline |
Definition at line 161 of file qnumeric.h.
References s2.
1.9.7