package Geometry;
import Math;
class Circle {
var r: f32;
}
fn PrintTotalArea(circles: Slice(Circle)) {
var area: f32 = 0;
for (c: Circle in circles) {
area += Math.Pi * c.r * c.r;
}
Print("Total area: {0}", area);
}
fn Main() -> i32 {
// A dynamically sized array, like `std::vector`.
var circles: Array(Circle) = ({.r = 1.0}, {.r = 2.0});
// Implicitly converts `Array` to `Slice`.
PrintTotalArea(circles);
return 0;
}
import std;
struct Circle {
std::float32_t r;
};
void PrintTotalArea(std::span<Circle> circles) {
std::float32_t area = 0;
for (const Circle& c : circles) {
area += std::numbers::pi * c.r * c.r;
}
std::print("Total area: {}\n", area);
}
int main() {
std::vector<Circle> circles{{.r = 1.0}, {.r = 2.0}};
// Implicitly converts `vector` to `span`.
PrintTotalArea(circles);
return 0;
}
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