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authorDave Gauer <dave@ratfactor.com>2021-04-10 14:45:25 -0400
committerDave Gauer <dave@ratfactor.com>2021-04-10 14:45:25 -0400
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tree8e307b81417a4755b78d18f34ecfef6777964baa /exercises/058_quiz7.zig
parent88a8f4788db2fde6f8e957abe3fceacf530d011c (diff)
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mention builtin ex coming up
Diffstat (limited to 'exercises/058_quiz7.zig')
-rw-r--r--exercises/058_quiz7.zig5
1 files changed, 4 insertions, 1 deletions
diff --git a/exercises/058_quiz7.zig b/exercises/058_quiz7.zig
index 46d68a8..59b48ba 100644
--- a/exercises/058_quiz7.zig
+++ b/exercises/058_quiz7.zig
@@ -419,7 +419,10 @@ pub fn main() void {
// we need to loop through the items in reverse, skipping nulls, until
// we reach the destination at the front of the array.
fn printTrip(trip: []?TripItem) void {
- var i: u8 = @intCast(u8, trip.len); // convert usize length
+ // We convert the usize length to a u8 with @intCast(), a
+ // builtin function just like @import(). We'll learn about
+ // these properly in a later exercise.
+ var i: u8 = @intCast(u8, trip.len);
while (i > 0) {
i -= 1;