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Question: What are Rust's "associated types" and how are they used in trait definitions?
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Answer: The "associated types" in Rust are placeholders within trait definitions that represent types
that are not specified until the trait is implemented.
They allow for flexible and generic trait definitions by deferring the concrete type until implementation.
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Question: Can you explain the difference between mutable and immutable references in Rust?
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Answer: The mutable references (&mut) in Rust allow for mutable access to a variable's value,
enabling modification of its contents.
Immutable references (&) allow for read-only access to a variable's value and prevent modifications.
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Question: What is the purpose of the '#[cfg]' attribute in Rust?
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Answer: The '#[cfg]' attribute in Rust is used for conditional compilation, allowing developers to specify code
that should only be included in the compiled binary under certain conditions, such as specific target platforms or feature flags.
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Question: What is the purpose of the cargo tool in Rust?
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Answer: The 'cargo' is Rust's package manager and build system.
It is used to create, build, test, and manage Rust projects, as well as to handle dependencies
through the Cargo.toml manifest file.
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Question: Can you explain the difference between static and dynamic dispatch in Rust?
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Answer: The Static dispatch, also known as monomorphization, occurs at compile time and selects the
specific function to call based on the type of the variable known at compile time.
Dynamic dispatch, on the other hand, occurs at runtime and selects the function to call based
on the type of the value at runtime.
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Question: Can you explain the concept of "Trait Bounds" in Rust generics?
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Answer: The "Trait Bounds" in Rust generics constrain generic types to those that implement specific traits.
They are specified using the syntax T: Trait, ensuring that any type used as T in a generic context must implement Trait.
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Question: What is a "lifetime" in Rust, and how does it relate to references?
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Answer: In Rust Lifetimes specify the scope for which references are valid.
They ensure that references do not outlive the data they point to, preventing dangling
pointers and memory safety issues.
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Question: What is Rust's approach to handling null values or null pointers?
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Answer: Rust does not have null values or null pointers.
Instead, it uses an enum called Option to represent optional values.
This forces developers to explicitly handle the case where a value may be absent, preventing null pointer dereferencing errors.
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Question: How does Rust manage the interaction between safe and unsafe code?
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Answer: Rust's type system distinguishes between safe and unsafe code, allowing safe code to call
unsafe functions and access unsafe blocks under certain conditions.
Unsafe code must be clearly marked as such, and the safety invariants must be upheld by the developer.
Rust ensures that unsafe operations are contained and do not compromise memory safety or thread safety.
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