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Added explicit return type to Iterator(T).fold

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This commit is contained in:
Luuk Machielse 2025-10-10 17:20:28 +02:00
parent 4c80f07498
commit c87b7f9d0b
1 changed files with 3 additions and 3 deletions
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6
src/root.zig
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@ -100,7 +100,7 @@ pub fn Iterator(comptime Inner: type) type {
return .{ .inner = .{ .inner = self.inner } }; return .{ .inner = .{ .inner = self.inner } };
} }
pub fn fold(self: Self, init: anytype, f: anytype) @typeInfo(@TypeOf(f)).@"fn".return_type.? { pub fn fold(self: Self, comptime T: type, init: T, f: anytype) T {
var mutSelf = self; var mutSelf = self;
var acc = init; var acc = init;
while (mutSelf.next()) |x| { while (mutSelf.next()) |x| {
@ -110,7 +110,7 @@ pub fn Iterator(comptime Inner: type) type {
} }
pub fn count(self: Self) usize { pub fn count(self: Self) usize {
return self.fold(@as(usize, 0), struct { return self.fold(usize, 0, struct {
fn inc(i: usize, _: Item) usize { fn inc(i: usize, _: Item) usize {
return i + 1; return i + 1;
} }
@ -118,7 +118,7 @@ pub fn Iterator(comptime Inner: type) type {
} }
pub fn last(self: Self) ?Item { pub fn last(self: Self) ?Item {
return self.fold(@as(?Item, null), struct { return self.fold(?Item, null, struct {
inline fn some(_: ?Item, x: Item) ?Item { inline fn some(_: ?Item, x: Item) ?Item {
return x; return x;
} }