@pranshurastogi
#Day3ofRust
Why indexing a list have usize as type -
usize is Rust's pointer sized unsigned integer type. Here's what that means:
Size depends on your system:
-- On 64-bit systems: usize = 64 bits (0 to 18,446,744,073,709,551,615)
-- On 32-bit systems: usize = 32 bits (0 to 4,294,967,295)
It automatically matches your CPU architecture.
Why does it exist?
Rust needs a type that can represent any valid memory address or collection size on your system. Using a fixed-size type like u32 would fail on 64-bit systems where addresses can be larger.
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