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Ada '83 Quality and Style:
Guidelines for Professional Programmers
CHAPTER 7: Portability
The management of dynamic storage can vary between Ada environments. In fact,
some environments do not provide any deallocation. Ada's storage control
mechanisms are too implementation dependent to be considered portable.
guideline
- Do not use a representation clause to specify number of storage units.
rationale
The meaning of the 'Storage_Size attribute is ambiguous; so, specifying a
particular value will not improve portability. It may or may not include
space allocated for parameters, data, etc. Save the use of this feature for
designs that must depend on a particular vendor's implementation.
note
During a porting activity, it can be assumed that any occurrence of storage
specification indicates an implementation dependency that must be redesigned.
Language Ref Manual references:
13.7.2 Representation Attributes
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