17 lines
628 B
Plaintext
17 lines
628 B
Plaintext
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= Aula01
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== Exercise 1
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=== a)
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Once the header is included, it checks if a unique value (usually something like HEADERFILE_H) is defined. Then if it's not defined, it defines it and continues to the rest of the page.
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When the code is included again, the first ifndef fails, resulting in a blank file.
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That prevents double declaration of any identifiers such as types, enums and static variables.
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=== b)
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All those function with `SllNode*` as their first argument, take a pointer to a `SllNode` as their first argument. This is a common pattern in C, where you pass a pointer to a struct to a function that will modify it.
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