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Can the number of record fields change during a program execution?
Wiki User
∙ 8y ago
No. A record is a data structure and data structures must have a fixed size, otherwise it would be impossible to create an array of records (or indeed any container of records, such as lists, vectors, queues, stacks and so on). While we can use a combination of inheritance, polymorphism and abstraction along with runtime type information and dynamic casts if we really needed different record types with different field counts (or even different types of fields), these "specialised" records must be declared at compile time; we cannot spontaneously add or subtract fields at runtime.
Wiki User
∙ 8y ago
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