HxArray Class¶

class HxArray¶

Value type for array expressions. Such value is obtained with HxExpression::getArrayValue() or HxSolution::getArrayValue(). An array contains values of type hxint, hxdouble, HxArray (for multi-dimensional arrays), HxInterval or HxCollection (list or set). Note that it’s possible to mix integers or doubles in the same array. Arrays are not decisions and cannot be modified.

See:: HxSolution
See:: HxExpression
Since:: 7.5

Summary¶

Functions¶
`count`	Returns the number of elements in the array.
`isBool`	Returns true if the value at the given position is a boolean.
`isInt`	Returns true if the value at the given position is an integer.
`isDouble`	Returns true if the value at the given position is a double.
`isInterval`	Returns true if the value at the given position is an interval.
`isArray`	Returns true if the value at the given position is an array.
`isCollection`	Returns true if the value at the given position is a collection (list or set).
`isUndefined`	If an argument is passed to the function, returns true if the value at the given position is undefined, otherwise returns true if the array itself is undefined.
`getIntValue`	Returns the integer value at the given position.
`getDoubleValue`	Returns the double value at the given position.
`getIntervalValue`	Returns the interval value at the given position.
`getArrayValue`	Returns the array value at the given position.
`getCollectionValue`	Returns the collection value at the given position.
`toString`	Returns a string representation of the values in the array in the formats { val0, val1, ..., valN }.

Functions¶

int HxArray::count() const¶

Returns the number of elements in the array. Elements in arrays are indexed from 0 to count()-1.

Returns:: Number of values in the array.

bool HxArray::isBool(int pos) const¶

Returns true if the value at the given position is a boolean. You can retrieve the value with getIntValue().

Parameters:: pos – Position of the value to query.
Returns:: True if the value at the given position is a boolean.

bool HxArray::isInt(int pos) const¶

Returns true if the value at the given position is an integer. You can retrieve the value with getIntValue().

Parameters:: pos – Position of the value to query.
Returns:: True if the value at the given position is an integer.

bool HxArray::isDouble(int pos) const¶

Returns true if the value at the given position is a double. You can retrieve the value with getDoubleValue().

Parameters:: pos – Position of the value to query.
Returns:: True if the value at the given position is a double.

bool HxArray::isInterval(int pos) const¶

Returns true if the value at the given position is an interval. You can retrieve the value with getIntervalValue().

Parameters:: pos – Position of the value to query.
Returns:: True if the value at the given position is an interval.

bool HxArray::isArray(int pos) const¶

Returns true if the value at the given position is an array. You can retrieve the value with getArrayValue().

Parameters:: pos – Position of the value to query.
Returns:: True if the value at the given position is an array.

bool HxArray::isCollection(int pos) const¶

Returns true if the value at the given position is a collection (list or set). You can retrieve the value with getCollectionValue().

Parameters:: pos – Position of the value to query.
Returns:: True if the value at the given position is a collection.

bool HxArray::isUndefined(int pos) const¶

bool HxArray::isUndefined() const¶

If an argument is passed to the function, returns true if the value at the given position is undefined, otherwise returns true if the array itself is undefined. A value can be undefined in 4 cases:

It is a double and its value is NaN (Not a Number).
It is an integer or boolean with no valid value (arithmetic or out of bounds exception).
It is an interval with at least one undefined bound.
It is the result of any ill-defined operation (at with out of bounds index or operations on undefined values for instance).

Parameters:: pos – Position of the value to query.
Returns:: True if the value at the given position is undefined, or if the array is undefined if no argument is passed.

hxint HxArray::getIntValue(int pos) const¶

Returns the integer value at the given position. If the value is neither an integer nor a boolean, an exception is thrown.

Parameters:: pos – Position of the value to query.
Returns:: Integer value.

hxdouble HxArray::getDoubleValue(int pos) const¶

Returns the double value at the given position. If the value is not a double, an exception is thrown.

Parameters:: pos – Position of the value to query.
Returns:: Double value.

HxInterval HxArray::getIntervalValue(int pos) const¶

Returns the interval value at the given position. If the value is not an interval, an exception is thrown.

Parameters:: pos – Position of the value to query.
Returns:: Interval value.

HxArray HxArray::getArrayValue(int pos) const¶

Returns the array value at the given position. If the value is not an array, an exception is thrown.

Parameters:: pos – Position of the value to query.
Returns:: Array value.

HxCollection HxArray::getCollectionValue(int pos) const¶

Returns the collection value at the given position. If the value is not a collection, an exception is thrown.

Parameters:: pos – Position of the value to query.
Returns:: Collection value.

std::string HxArray::toString() const¶

Returns a string representation of the values in the array in the formats { val0, val1, ..., valN }.

Returns:: String representation.