mirror of
https://github.com/ratfactor/ziglings
synced 2024-05-04 16:46:04 +02:00
30 lines
645 B
Zig
30 lines
645 B
Zig
//
|
|
// Because they can suspend and resume, async Zig functions are
|
|
// an example of a more general programming concept called
|
|
// "coroutines". One of the neat things about Zig async functions
|
|
// is that they retain their state as they are suspended and
|
|
// resumed.
|
|
//
|
|
// See if you can make this program print "5 4 3 2 1".
|
|
//
|
|
const print = @import("std").debug.print;
|
|
|
|
pub fn main() void {
|
|
const n = 5;
|
|
var foo_frame = async foo(n);
|
|
|
|
???
|
|
|
|
print("\n", .{});
|
|
}
|
|
|
|
fn foo(countdown: u32) void {
|
|
var current = countdown;
|
|
|
|
while (current > 0) {
|
|
print("{} ", .{current});
|
|
current -= 1;
|
|
suspend {}
|
|
}
|
|
}
|