The repercussions of a typo in C++ & Rust
8 days ago
- #Rust
- #Performance
- #C++
- Missing an ampersand in C++ can lead to copying data instead of passing by reference, causing performance issues.
- Rust's defaults prevent such mistakes by moving objects by default unless they implement the Copy trait.
- C++ requires vigilance and tooling to catch these issues, whereas Rust's compiler enforces correct behavior.
- Rust's 'pass by value' behavior differs from C++ by moving objects, which is more efficient for large objects.
- Rust's type system prevents accidental copying, making it harder to introduce performance bugs.
- C++ can also prevent copying with explicit constructors and rules, but it's more cumbersome than Rust's approach.
- Rust's defaults reduce mental burden and let the compiler handle optimizations and correctness checks.