66 lines
1.7 KiB
Rust
66 lines
1.7 KiB
Rust
fn main() {
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//if else statements
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let mut num1 = 10;
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let mut num2 = 5;
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if num1 < num2 {
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println!("{} is smaller then {}", num1, num2);
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} else {
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println!("{} is bigger then {}", num1, num2);
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}
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//if expressions
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//always need a else case and must be of the same type, ternary operations do not exist but this results the same
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num1 = if num1 != num2 { 5 } else { 15 };
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println!("num 1: {}", num1);
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//match
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//same as switch case
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match num1 {
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1 => println!("Number is 1"),
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2 => println!("Number is 2"),
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3 => println!("Number is 3"),
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6 => println!("Number is 6"),
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7 => println!("Number is 7"),
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_ => println!("Number is none of the other statements"),
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}
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// _ is a default and altough syntax specifies => it should be an exact match
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//combining match results
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match num2 {
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1 | 2 | 3 | 4 => println!("Number is in range of 1 to 4"),
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5 | 7 => println!("Number is 5 or 7"),
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_ => println!("Number is none of the above"),
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}
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//match expression
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println!("Old number for num2: {}",num2);
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let num2 = match num2 {
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1 | 2 | 3 | 4 => 1234,
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5 | 7 => 57,
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_ => -1,
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};
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println!("New number for num2: {}",num2);
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//loops
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let mut loop_cycles = 1;
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loop {
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println!("this is loop: {}",loop_cycles);
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if loop_cycles == 3 {break};
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loop_cycles += 1
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}
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//loop expression
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loop_cycles = 1;
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let result = loop {
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println!("cycle: {}",loop_cycles);
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if 7 % loop_cycles == 2 {break loop_cycles};
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loop_cycles += 1
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};
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println!("it took {} cycles to resolve the expression",result)
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}
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