Breaking News: Grepper is joining You.com. Read the official announcement!

rust global variables

SnefDen answered on May 7, 2022 Popularity 10/10 Helpfulness 4/10

answer rust global variables

related global variables rust

rust global variables

Comment

static SOME_INT: i32 = 5;
static SOME_STR: &'static str = "A static string";
static SOME_STRUCT: MyStruct = MyStruct {
    number: 10,
    string: "Some string",
};
static mut db: Option<sqlite::Connection> = None;

fn main() {
    println!("{}", SOME_INT);
    println!("{}", SOME_STR);
    println!("{}", SOME_STRUCT.number);
    println!("{}", SOME_STRUCT.string);

    unsafe {
        db = Some(open_database());
    }
}

struct MyStruct {
    number: i32,
    string: &'static str,
}

/* Note:
	The initial access to the static mut has to be unsafe.
*/

Popularity 10/10 Helpfulness 4/10 Language rust

Source: stackoverflow.com

Tags: global-variables rust

Link to this answer
Share Copy Link

Contributed on May 07 2022

SnefDen

0 Answers Avg Quality 2/10

Closely Related Answers

global variables rust

Comment

// if you need a constant global variable use const
// remember to uppercase the variable name

const IP_ADDRESS: &'static str = "8.8.8.8"

// if you need it to be mutable use static

static IP_ADDRESS: &str = "8.8.8.8"

Popularity 5/10 Helpfulness 1/10 Language rust

Source: Grepper

Tags: global-variables rust

Link to this answer
Share Copy Link

Contributed on Mar 05 2024

John Appleseed

0 Answers Avg Quality 2/10

rust global variables

Contents

More Related Answers

rust global variables

Closely Related Answers

global variables rust

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.