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53 lines
1.3 KiB
53 lines
1.3 KiB
use std::fmt;
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fn reverse(pair: (i32, bool)) -> (bool, i32) {
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let (integer, boolean) = pair;
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(boolean, integer)
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}
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#[derive(Debug)]
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struct Matrix(f32, f32, f32, f32);
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impl fmt::Display for Matrix {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "( {} {} )\n( {} {} )", self.0, self.1, self.2, self.3)
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}
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}
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fn transpose(m: Matrix) -> Matrix {
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Matrix(m.0, m.2, m.1, m.3)
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}
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fn main() {
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let long_tuple = (
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1u8, 2u16, 3u32, 4u64, -1i8, -2i16, -3i32, -4i64, 0.1f32, 0.2f64, 'a', true,
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);
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println!("long tuple first value: {}", long_tuple.0);
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println!("long tuple second value: {}", long_tuple.1);
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let tuple_of_tuples = ((1u8, 2u16, 2u32), (4u64, -1i8), -2i16);
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println!("tuple of tuples: {:?}", tuple_of_tuples);
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let pair = (1, true);
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println!("pair is {:?}", pair);
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println!("the reversed pair is {:?}", reverse(pair));
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println!("one element tuple: {:?}", (5u32,));
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println!("just an integer: {:?}", (5u32));
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let tuple = (1, "hello", 4.5, true);
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let (a, b, c, d) = tuple;
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println!("{:?}, {:?}, {:?}, {:?}", a, b, c, d);
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let matrix = Matrix(1.1, 1.2, 2.1, 2.2);
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println!("{:?}", matrix);
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println!("{}", matrix);
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println!("Matrix:\n{}", matrix);
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println!("Transpose:\n{}", transpose(matrix));
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}
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