Commit 49b9e1e69b
Changed files (1)
lib
std
lib/std/mem.zig
@@ -3527,21 +3527,33 @@ test "max" {
/// Finds the smallest and largest number in a slice. O(n).
/// Returns an anonymous struct with the fields `min` and `max`.
/// `slice` must not be empty.
-pub fn minMax(comptime T: type, slice: []const T) struct { min: T, max: T } {
+pub fn minMax(comptime T: type, slice: []const T) struct { T, T } {
assert(slice.len > 0);
- var minVal = slice[0];
- var maxVal = slice[0];
+ var running_minimum = slice[0];
+ var running_maximum = slice[0];
for (slice[1..]) |item| {
- minVal = @min(minVal, item);
- maxVal = @max(maxVal, item);
+ running_minimum = @min(running_minimum, item);
+ running_maximum = @max(running_maximum, item);
}
- return .{ .min = minVal, .max = maxVal };
+ return .{ running_minimum, running_maximum };
}
-test "minMax" {
- try testing.expectEqual(minMax(u8, "abcdefg"), .{ .min = 'a', .max = 'g' });
- try testing.expectEqual(minMax(u8, "bcdefga"), .{ .min = 'a', .max = 'g' });
- try testing.expectEqual(minMax(u8, "a"), .{ .min = 'a', .max = 'a' });
+test minMax {
+ {
+ const actual_min, const actual_max = minMax(u8, "abcdefg");
+ try testing.expectEqual(@as(u8, 'a'), actual_min);
+ try testing.expectEqual(@as(u8, 'g'), actual_max);
+ }
+ {
+ const actual_min, const actual_max = minMax(u8, "bcdefga");
+ try testing.expectEqual(@as(u8, 'a'), actual_min);
+ try testing.expectEqual(@as(u8, 'g'), actual_max);
+ }
+ {
+ const actual_min, const actual_max = minMax(u8, "a");
+ try testing.expectEqual(@as(u8, 'a'), actual_min);
+ try testing.expectEqual(@as(u8, 'a'), actual_max);
+ }
}
/// Returns the index of the smallest number in a slice. O(n).