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| author | Andrew Kelley <andrew@ziglang.org> | 2023-04-13 21:44:40 -0700 |
|---|---|---|
| committer | Andrew Kelley <andrew@ziglang.org> | 2023-04-25 11:23:40 -0700 |
| commit | a5c910adb610ae530db99f10aa77aaed3e85e830 (patch) | |
| tree | 5c3f72dbac50fc9f09608be3d7ea328c629c00a0 /lib/std/array_list.zig | |
| parent | 8d88dcdc61c61e3410138f4402482131f5074a80 (diff) | |
| download | zig-a5c910adb610ae530db99f10aa77aaed3e85e830.tar.gz zig-a5c910adb610ae530db99f10aa77aaed3e85e830.zip | |
change semantics of `@memcpy` and `@memset`
Now they use slices or array pointers with any element type instead of
requiring byte pointers.
This is a breaking enhancement to the language.
The safety check for overlapping pointers will be implemented in a
future commit.
closes #14040
Diffstat (limited to 'lib/std/array_list.zig')
| -rw-r--r-- | lib/std/array_list.zig | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/lib/std/array_list.zig b/lib/std/array_list.zig index 1695e2bd87..1791482bc4 100644 --- a/lib/std/array_list.zig +++ b/lib/std/array_list.zig @@ -121,7 +121,7 @@ pub fn ArrayListAligned(comptime T: type, comptime alignment: ?u29) type { const new_memory = try allocator.alignedAlloc(T, alignment, self.items.len); mem.copy(T, new_memory, self.items); - @memset(@ptrCast([*]u8, self.items.ptr), undefined, self.items.len * @sizeOf(T)); + @memset(self.items, undefined); self.clearAndFree(); return new_memory; } @@ -281,11 +281,7 @@ pub fn ArrayListAligned(comptime T: type, comptime alignment: ?u29) type { const new_len = old_len + items.len; assert(new_len <= self.capacity); self.items.len = new_len; - @memcpy( - @ptrCast([*]align(@alignOf(T)) u8, self.items.ptr + old_len), - @ptrCast([*]const u8, items.ptr), - items.len * @sizeOf(T), - ); + @memcpy(self.items[old_len..][0..items.len], items); } pub const Writer = if (T != u8) @@ -601,7 +597,7 @@ pub fn ArrayListAlignedUnmanaged(comptime T: type, comptime alignment: ?u29) typ const new_memory = try allocator.alignedAlloc(T, alignment, self.items.len); mem.copy(T, new_memory, self.items); - @memset(@ptrCast([*]u8, self.items.ptr), undefined, self.items.len * @sizeOf(T)); + @memset(self.items, undefined); self.clearAndFree(allocator); return new_memory; } @@ -740,11 +736,7 @@ pub fn ArrayListAlignedUnmanaged(comptime T: type, comptime alignment: ?u29) typ const new_len = old_len + items.len; assert(new_len <= self.capacity); self.items.len = new_len; - @memcpy( - @ptrCast([*]align(@alignOf(T)) u8, self.items.ptr + old_len), - @ptrCast([*]const u8, items.ptr), - items.len * @sizeOf(T), - ); + @memcpy(self.items[old_len..][0..items.len], items); } pub const WriterContext = struct { |