Question

How to allocate 1MB in Rust

Answer 1

fn main() {
    // Allocates 1 MB = 1,048,576 bytes
    
    let buf: Vec<u8> = Vec::with_capacity(1024 * 1024);
    
    println!("{:?}", buf.capacity());
}
 
 
  
/*
run:
  
1048576
  
*/

 

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