const type: structElement

Type to describe an element of a struct.

const type: structElementArray

Array of structElement.

const func type: getType (in structElement: anElement)

Get the type of a structElement.

getType(elements(rational)[1])   returns integer
getType(elements(null_file)[1])  returns char
getType(structElement.value)     raises RANGE_ERROR

Returns:

the type of the given structElement.

const structElement: (attr structElement) . value

Default value of structElement (NIL).

const func boolean: (in structElement: elem1) = (in structElement: elem2)

Check if two structElement values are equal.

Returns:

TRUE if both values are equal, FALSE otherwise.

const func boolean: (in structElement: elem1) <> (in structElement: elem2)

Check if two structElement values are not equal.

Returns:

FALSE if both values are equal, TRUE otherwise.

const func f_param: symb (in structElement: anElement)

Convert a structElement into a symbol parameter. This can be used to declare a function for a specific struct element:

const func string: toJson (in dataType: dataStruct, symb anElement) is
  return toJson(dataStruct.element);

Returns:

a symbol parameter which corresponds to anElement.

Raises:

RANGE_ERROR - If the parameter is structElement.value.

const func structElement: structElement (in reference: aReference)

Convert a reference to a structElement.

Returns:

the result of the conversion.

const func integer: compare (in structElement: elem1, in structElement: elem2)

Compare two structElement values.

Returns:

-1, 0 or 1 if the first argument is considered to be respectively less than, equal to, or greater than the second.

const func integer: hashCode (in structElement: anElement)

Compute the hash value of a structElement.

Returns:

the hash value.

const func string: getName (in structElement: anElement)

Get the name of a structElement.

getName(elements(rational)[1])   returns "numerator"
getName(elements(rational)[2])   returns "denominator"
getName(elements(null_file)[1])  returns "bufferChar"

Returns:

the the name of the given structElement.

const func structElementArray: elements (in type: aType)

Get all struct elements from the given struct type aType.

elements(rational)  returns an array with two struct elements
elements(boolean)   raises ILLEGAL_ACTION

Returns:

an array structElement describing all elements of the struct.

Raises:

ILLEGAL_ACTION - The type aType is not a struct type.