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Min/max exp functions have custom Null handler

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This commit is contained in:
Matthias Kuhn 2017-12-27 21:41:14 +01:00
parent c063710352
commit 272a02dfdb
1 changed files with 4 additions and 4 deletions
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8
src/core/expression/qgsexpressionfunction.cpp
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@ -415,7 +415,7 @@ static QVariant fcnExpScale( const QVariantList &values, const QgsExpressionCont
static QVariant fcnMax( const QVariantList &values, const QgsExpressionContext *, QgsExpression *parent, const QgsExpressionNodeFunction * )
{
QVariant result;
QVariant result( QVariant::Double );
double maxVal = std::numeric_limits<double>::quiet_NaN();
for ( const QVariant &val : values )
{
@ -439,7 +439,7 @@ static QVariant fcnMax( const QVariantList &values, const QgsExpressionContext *
static QVariant fcnMin( const QVariantList &values, const QgsExpressionContext *, QgsExpression *parent, const QgsExpressionNodeFunction * )
{
QVariant result;
QVariant result( QVariant::Double );
double minVal = std::numeric_limits<double>::quiet_NaN();
for ( const QVariant &val : values )
{
@ -3941,8 +3941,8 @@ const QList<QgsExpressionFunction *> &QgsExpression::Functions()
sFunctions << randfFunc;
sFunctions
<< new QgsStaticExpressionFunction( QStringLiteral( "max" ), -1, fcnMax, QStringLiteral( "Math" ) )
<< new QgsStaticExpressionFunction( QStringLiteral( "min" ), -1, fcnMin, QStringLiteral( "Math" ) )
<< new QgsStaticExpressionFunction( QStringLiteral( "max" ), -1, fcnMax, QStringLiteral( "Math" ), QString(), false, QSet<QString>(), false, QStringList(), /* handlesNull = */ true )
<< new QgsStaticExpressionFunction( QStringLiteral( "min" ), -1, fcnMin, QStringLiteral( "Math" ), QString(), false, QSet<QString>(), false, QStringList(), /* handlesNull = */ true )
<< new QgsStaticExpressionFunction( QStringLiteral( "clamp" ), QgsExpressionFunction::ParameterList() << QgsExpressionFunction::Parameter( QStringLiteral( "min" ) ) << QgsExpressionFunction::Parameter( QStringLiteral( "value" ) ) << QgsExpressionFunction::Parameter( QStringLiteral( "max" ) ), fcnClamp, QStringLiteral( "Math" ) )
<< new QgsStaticExpressionFunction( QStringLiteral( "scale_linear" ), 5, fcnLinearScale, QStringLiteral( "Math" ) )
<< new QgsStaticExpressionFunction( QStringLiteral( "scale_exp" ), 6, fcnExpScale, QStringLiteral( "Math" ) )