Commit ff4f2753e4
Changed files (1)
lib
std
lib/std/mem.zig
@@ -2903,9 +2903,10 @@ pub fn WindowIterator(comptime T: type) type {
const Self = @This();
- /// Returns a slice of the first window. This never fails.
+ /// Returns a slice of the first window.
/// Call this only to get the first window and then use `next` to get
/// all subsequent windows.
+ /// Asserts that iteration has not begun.
pub fn first(self: *Self) []const T {
assert(self.index.? == 0);
return self.next().?;
@@ -3037,8 +3038,9 @@ pub fn SplitIterator(comptime T: type, comptime delimiter_type: DelimiterType) t
const Self = @This();
- /// Returns a slice of the first field. This never fails.
+ /// Returns a slice of the first field.
/// Call this only to get the first field and then use `next` to get all subsequent fields.
+ /// Asserts that iteration has not begun.
pub fn first(self: *Self) []const T {
assert(self.index.? == 0);
return self.next().?;
@@ -3101,8 +3103,9 @@ pub fn SplitBackwardsIterator(comptime T: type, comptime delimiter_type: Delimit
const Self = @This();
- /// Returns a slice of the first field. This never fails.
+ /// Returns a slice of the first field.
/// Call this only to get the first field and then use `next` to get all subsequent fields.
+ /// Asserts that iteration has not begun.
pub fn first(self: *Self) []const T {
assert(self.index.? == self.buffer.len);
return self.next().?;