qnumeric.h File Reference

(0677d334f85f6d39f6f6495162eec69712e42370)

#include <QtCore/qtconfigmacros.h>
#include <QtCore/qtcoreexports.h>
#include <QtCore/qtypes.h>
#include <cmath>
#include <limits>
#include <type_traits>

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Namespaces
namespace	QtPrivate
	\macro QT_NO_KEYWORDS >

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)

Macro Definition Documentation

Q_INFINITY

#define Q_INFINITY   (QT_PREPEND_NAMESPACE(qInf)())

Definition at line 77 of file qnumeric.h.

Referenced by QV4::ExecutionEngine::ExecutionEngine(), QV4::GlobalFunctions::method_parseFloat(), QScrollerPrivate::nextSnapPos(), and QV4::RuntimeHelpers::stringToNumber().

Q_QNAN

#define Q_QNAN   (QT_PREPEND_NAMESPACE(qQNaN)())

Definition at line 81 of file qnumeric.h.

Referenced by QScrollerPrivate::nextSnapPos().

Function Documentation

qAbs()

template<typename T >

constexpr T qAbs ( const T & t )

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(), QIBaseResult::applyScale(), 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(), QQuickDrawerPrivate::effectiveEdge(), epsilonCompare(), QColorSpacePrivate::equals(), QJSEngine::evaluate(), QGeoRectanglePrivate::extendRectangle(), FDot16FixedDiv(), fetchTransformedBilinear(), fetchTransformedBilinear_simple_scale_helper(), fetchTransformedBilinearARGB32PM(), fetchTransformedBilinearARGB32PM_simple_scale_helper(), QRasterPlatformPixmap::fill(), QQuadPath::fillSideOf(), QQuickSwipePrivate::finishTransition(), 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(), QWaylandTextInputV3Private::inputMethodQuery(), QSSGClipPlane::intersectWithLine(), QQuickDialPrivate::isLargeChange(), QIntersectionPoint::isOnLine(), QQuickContext2D::isPointInPath(), QSSGUtils::quat::isSane(), QSimplexConstraint::isSatisfied(), QSSGUtils::quat::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(), 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::QSGCurveFillMaterialShader::updateUniformData(), QSGCurveStrokeMaterialShader::updateUniformData(), QSGDistanceFieldTextMaterialRhiShader::updateUniformData(), v4StackTrace(), QIntValidator::validate(), QDoubleValidatorPrivate::validateWithLocale(), AVFMediaPlayer::videoOrientationForAssetTrack(), QQuickFlickablePrivate::viewportAxisMoved(), QGeoProjectionWebMercator::visibleRegion(), QQuickFlickable::xflick(), QTextLine::xToCursor(), and QQuickFlickable::yflick().

qAddOverflow() [1/4]

template<typename T , T V2>

template< typename T, T V2 > bool qAddOverflow	(	T	v1,
		std::integral_constant< T, V2 >	,
		T *	r )

Since

6.1

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().

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qAddOverflow() [2/4]

template<auto V2, typename T >

template< auto V2, typename T > bool qAddOverflow	(	T	v1,
		T *	r )

Since

6.1

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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qAddOverflow() [3/4]

template<typename T >

std::enable_if_t< std::is_unsigned_v< T >, bool > qAddOverflow ( T v1, T v2, T * r )

inline

Definition at line 113 of file qnumeric.h.

Referenced by QV4::add_int32(), add_saturate(), QDate::addDays(), QDateTime::addMSecs(), Http2::assemble_hpack_block(), QImageData::calculateImageParameters(), daysAndMillisOverflow(), HPack::entry_size(), QDateTimePrivate::expressUtcAsLocal(), findSectionTable(), findStringTable(), Generator::generateCode(), QDateTimePrivate::localStateAtMillis(), nearestMultipleOf4(), qAddOverflow(), qAddOverflow(), qCalculateBlockSize(), qMulOverflow(), QKtxHandler::read(), QCborStreamReaderPrivate::readStringChunk_byte(), safeView(), QDateTime::setMSecsSinceEpoch(), QTimeZonePrivate::stateAtZoneTime(), and QV4::stringToArrayIndex().

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qAddOverflow() [4/4]

template<typename T >

std::enable_if_t< std::is_signed_v< T >, bool > qAddOverflow ( T v1, T v2, T * r )

inline

Definition at line 121 of file qnumeric.h.

References s2.

qFloatDistance() [1/2]

Q_CORE_EXPORT quint64 qFloatDistance	(	double	a,
		double	b )

qFloatDistance() [2/2]

Q_CORE_EXPORT quint32 qFloatDistance	(	float	a,
		float	b )

qFpClassify() [1/2]

Q_CORE_EXPORT Q_DECL_CONST_FUNCTION int qFpClassify

(

double

val

)

Definition at line 98 of file qnumeric.cpp.

References qt_fpclassify().

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qFpClassify() [2/2]

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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qFuzzyCompare() [1/2]

constexpr bool qFuzzyCompare ( double p1, double p2 )

constexpr

Definition at line 369 of file qnumeric.h.

References QtPrivate::min(), p1, p2, and qAbs().

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qFuzzyCompare() [2/2]

constexpr bool qFuzzyCompare ( float p1, float p2 )

constexpr

Definition at line 374 of file qnumeric.h.

References QtPrivate::min(), p1, p2, and qAbs().

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qFuzzyIsNull() [1/2]

constexpr bool qFuzzyIsNull ( double d )

constexpr

Definition at line 379 of file qnumeric.h.

References d, and qAbs().

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qFuzzyIsNull() [2/2]

constexpr bool qFuzzyIsNull ( float f )

constexpr

Definition at line 384 of file qnumeric.h.

References qAbs().

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qInf()

Q_CORE_EXPORT Q_DECL_CONST_FUNCTION double qInf

(

)

Referenced by QDeclarativeGeoMapItemUtils::boundingRectangleFromList(), QDeclarativeGeoMapItemUtils::clipPolygon(), computeBBox(), QPSQLResult::data(), QQuickDeliveryAgentPrivate::deliverTouchAsMouse(), QDeclarativeGeoMapItemUtils::distanceSqrPointLine(), 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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qIntCast() [1/2]

QT_WARNING_POP int qIntCast ( double f )

inline

Definition at line 404 of file qnumeric.h.

qIntCast() [2/2]

int qIntCast ( float f )

inline

Definition at line 405 of file qnumeric.h.

qIsFinite() [1/3]

Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsFinite

(

double

d

)

qIsFinite() [2/3]

Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsFinite

(

float

f

)

qIsFinite() [3/3]

template<typename T >

constexpr std::enable_if< std::is_integral< T >::value, bool >::type qIsFinite ( T )

constexpr

Definition at line 56 of file qnumeric.h.

qIsInf() [1/3]

Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsInf

(

double

d

)

qIsInf() [2/3]

Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsInf

(

float

f

)

qIsInf() [3/3]

template<typename T >

QT_BEGIN_NAMESPACE constexpr std::enable_if< std::is_integral< T >::value, bool >::type qIsInf ( T )

constexpr

Definition at line 50 of file qnumeric.h.

qIsNaN() [1/3]

Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsNaN

(

double

d

)

qIsNaN() [2/3]

Q_CORE_EXPORT Q_DECL_CONST_FUNCTION bool qIsNaN

(

float

f

)

qIsNaN() [3/3]

template<typename T >

constexpr std::enable_if< std::is_integral< T >::value, bool >::type qIsNaN ( T )

constexpr

Definition at line 53 of file qnumeric.h.

qIsNull() [1/2]

QT_WARNING_PUSH QT_WARNING_DISABLE_FLOAT_COMPARE constexpr bool qIsNull ( double d )

constexprnoexcept

Definition at line 392 of file qnumeric.h.

References d.

qIsNull() [2/2]

constexpr bool qIsNull ( float f )

constexprnoexcept

Definition at line 397 of file qnumeric.h.

qMulOverflow() [1/3]

template<typename T , T V2>

template< typename T, T V2 > bool qMulOverflow	(	T	v1,
		std::integral_constant< T, V2 >	,
		T *	r )

Since

6.1

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.

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qMulOverflow() [2/3]

template<auto V2, typename T >

template< auto V2, typename T > bool qMulOverflow	(	T	v1,
		T *	r )

Since

6.1

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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qMulOverflow() [3/3]

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 )

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().

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qQNaN()

Q_CORE_EXPORT Q_DECL_CONST_FUNCTION double qQNaN

(

)

Referenced by QGeoPositionInfo::attribute(), QGeoProjectionWebMercator::coordinateToItemPosition(), QPSQLResult::data(), QV4::DateObject::dateTimeToNumber(), QGeoProjectionWebMercator::fitViewportToGeoRectangle(), QDeclarativeGeoMap::fromCoordinate(), QGeoRectangle::height(), QV4::Compiler::Codegen::Reference::loadInAccumulator(), MakeDay(), MakeTime(), QV4::DatePrototype::method_UTC(), QV4::RuntimeHelpers::stringToNumber(), QGeoRectangle::width(), and writeDouble().

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qRound() [1/2]

constexpr int qRound ( double d )

inlineconstexpr

Definition at line 353 of file qnumeric.h.

References d.

qRound() [2/2]

constexpr int qRound ( float d )

inlineconstexpr

Definition at line 355 of file qnumeric.h.

References d.

qRound64() [1/2]

constexpr qint64 qRound64 ( double d )

inlineconstexpr

Definition at line 358 of file qnumeric.h.

References d.

qRound64() [2/2]

constexpr qint64 qRound64 ( float d )

inlineconstexpr

Definition at line 360 of file qnumeric.h.

References d.

qSubOverflow() [1/4]

template<typename T , T V2>

template< typename T, T V2 > bool qSubOverflow	(	T	v1,
		std::integral_constant< T, V2 >	,
		T *	r )

Since

6.1

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().

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qSubOverflow() [2/4]

template<auto V2, typename T >

template< auto V2, typename T > bool qSubOverflow	(	T	v1,
		T *	r )

Since

6.1

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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qSubOverflow() [3/4]

template<typename T >

std::enable_if_t< std::is_unsigned_v< T >, bool > qSubOverflow ( T v1, T v2, T * r )

inline

Definition at line 153 of file qnumeric.h.

Referenced by QDateTimePrivate::expressUtcAsLocal(), qSubOverflow(), qSubOverflow(), QTimeZonePrivate::stateAtZoneTime(), and QV4::sub_int32().

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qSubOverflow() [4/4]

template<typename T >

std::enable_if_t< std::is_signed_v< T >, bool > qSubOverflow ( T v1, T v2, T * r )

inline

Definition at line 161 of file qnumeric.h.

References s2.