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67 lines
1.3 KiB
67 lines
1.3 KiB
use std::fmt;
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#[derive(Debug)]
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struct MinMax(i64, i64);
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impl fmt::Display for MinMax {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "({}, {})", self.0, self.1)
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}
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}
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#[derive(Debug)]
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struct Point2D {
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x: f64,
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y: f64,
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}
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impl fmt::Display for Point2D {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "x: {}, y: {}", self.x, self.y)
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}
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}
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#[derive(Debug)]
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struct Complex {
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real: f64,
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imag: f64,
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}
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impl fmt::Display for Complex {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "{} + {}i", self.real, self.imag)
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}
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}
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fn main() {
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let minmax = MinMax(0, 14);
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println!("Compare structures:");
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println!("Display: {}", minmax);
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println!("Debug: {:?}", minmax);
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let big_range = MinMax(-300, 300);
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let small_range = MinMax(-3, 3);
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println!(
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"The big range is {big} and the small is {small}",
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small = small_range,
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big = big_range
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);
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let point = Point2D { x: 3.3, y: 7.2 };
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println!("Compare points:");
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println!("Display: {}", point);
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println!("Debug: {:?}", point);
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let cmplx = Complex {
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real: 3.3,
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imag: 7.2,
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};
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println!("Compare complexes:");
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println!("Display: {}", cmplx);
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println!("Debug: {:?}", cmplx);
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}
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