struct CrlValueRange / crl_value_range_t

Description

Stores two values: a minimum and a maximum.

Both a and b are optional. It is required that both a and b are numeric.

The syntax in CRL is: a..b if both are present. As both may be missing, the following are also correct CRL syntax:

• a..

• ..b

• ..

Most efficiently, a range's minimum and maximum slots can be accessed by minimum() and maximum() slot access functions.

Generically (see CrlStructure), a range's minimum and maximum can be accessed as a vector, which always has two elements:

• index 0 :: ValueNumeric equal to minimum(),

• index 1 :: ValueNumeric equal to maximum().

Further, a Range emulates a map and always has the attributes

• "minimum" :: ValueNumeric equal to minimum()

• "maximum" :: ValueNumeric equal to maximum()

This wrapper is especially implemented for environments where only the CrlStructure interface is available, but not the interface for this special class, particularly in OptLa. If you use the native C/C++ library interface, better use the slot access directly.

Kinship

Immediate super class: ValueNumeric

Slots

Inherited Slots

Members

Inherited Members

Detailed Descriptions

ValueNumericSimple * minimum () const

Reader of slot 'minimum': The lowest possible value.

To write this slot, use set_minimum()/reset_minimum().

This reader is NULL safe; for this == NULL, it returns NULL.

void set_minimum (ValueNumericSimple *)

Writer of slot 'minimum': The lowest possible value.

To read this slot, use minimum().

This writer must not be invoked with this == NULL.

void reset_minimum ()

NULL writer of slot 'minimum': The lowest possible value.

To read this slot, use minimum().

This writer must not be invoked with this == NULL.

ValueNumericSimple * maximum () const

Reader of slot 'maximum': The highest possible value.

To write this slot, use set_maximum()/reset_maximum().

This reader is NULL safe; for this == NULL, it returns NULL.

void set_maximum (ValueNumericSimple *)

Writer of slot 'maximum': The highest possible value.

To read this slot, use maximum().

This writer must not be invoked with this == NULL.

void reset_maximum ()

NULL writer of slot 'maximum': The highest possible value.

To read this slot, use maximum().

This writer must not be invoked with this == NULL.

[constructor] CrlValueRange ()

Creates a range with neither lower nor upper limit.

[constructor] CrlValueRange (unsigned_t)

Creates a range with lower limit = upper limit = given value

[constructor] CrlValueRange (unsigned_t, unsigned_t)

Creates a range with both limits given.

[constructor] CrlValueRange (Value *)

Creates a range with lower limit = upper limit = given value

[constructor] CrlValueRange (Value *, Value *)

Creates a range with both limits given.

[constructor] CrlValueRange (ValueRange const &)

Copy constructor

void operator= (ValueRange const &)

Assignment operator

bool set_minimum (Value *)

This in a convenience wrapper that tries to cast to <