6 files changed, 17 insertions, 17 deletions
diff --git a/lib/std/os/linux/bpf.zig b/lib/std/os/linux/bpf.zig
index db6473d673..63b669acd5 100644
--- a/lib/std/os/linux/bpf.zig
+++ b/lib/std/os/linux/bpf.zig
@@ -1631,7 +1631,7 @@ test "map lookup, update, and delete" {
     const status = try map_get_next_key(map, &lookup_key, &next_key);
     try expectEqual(status, true);
     try expectEqual(next_key, key);
-    std.mem.copy(u8, &lookup_key, &next_key);
+    lookup_key = next_key;
     const status2 = try map_get_next_key(map, &lookup_key, &next_key);
     try expectEqual(status2, false);
 
diff --git a/lib/std/os/linux/io_uring.zig b/lib/std/os/linux/io_uring.zig
index 20248fd65f..b7467d765f 100644
--- a/lib/std/os/linux/io_uring.zig
+++ b/lib/std/os/linux/io_uring.zig
@@ -1855,8 +1855,8 @@ test "write_fixed/read_fixed" {
 
     var raw_buffers: [2][11]u8 = undefined;
     // First buffer will be written to the file.
-    std.mem.set(u8, &raw_buffers[0], 'z');
-    std.mem.copy(u8, &raw_buffers[0], "foobar");
+    @memset(&raw_buffers[0], 'z');
+    raw_buffers[0][0.."foobar".len].* = "foobar".*;
 
     var buffers = [2]os.iovec{
         .{ .iov_base = &raw_buffers[0], .iov_len = raw_buffers[0].len },
@@ -2966,7 +2966,7 @@ test "provide_buffers: read" {
     // Provide 1 buffer again
 
     // Deliberately put something we don't expect in the buffers
-    mem.set(u8, mem.sliceAsBytes(&buffers), 42);
+    @memset(mem.sliceAsBytes(&buffers), 42);
 
     const reprovided_buffer_id = 2;
 
@@ -3155,7 +3155,7 @@ test "provide_buffers: accept/connect/send/recv" {
     // Do 4 recv which should consume all buffers
 
     // Deliberately put something we don't expect in the buffers
-    mem.set(u8, mem.sliceAsBytes(&buffers), 1);
+    @memset(mem.sliceAsBytes(&buffers), 1);
 
     var i: usize = 0;
     while (i < buffers.len) : (i += 1) {
@@ -3235,7 +3235,7 @@ test "provide_buffers: accept/connect/send/recv" {
     // Final recv which should work
 
     // Deliberately put something we don't expect in the buffers
-    mem.set(u8, mem.sliceAsBytes(&buffers), 1);
+    @memset(mem.sliceAsBytes(&buffers), 1);
 
     {
         var sqe = try ring.recv(0xdfdfdfdf, socket_test_harness.client, .{ .buffer_selection = .{ .group_id = group_id, .len = buffer_len } }, 0);
diff --git a/lib/std/os/linux/tls.zig b/lib/std/os/linux/tls.zig
index cffdec0424..311e5609e8 100644
--- a/lib/std/os/linux/tls.zig
+++ b/lib/std/os/linux/tls.zig
@@ -275,7 +275,7 @@ inline fn alignPtrCast(comptime T: type, ptr: [*]u8) *T {
 /// architecture-specific value of the thread-pointer register
 pub fn prepareTLS(area: []u8) usize {
     // Clear the area we're going to use, just to be safe
-    mem.set(u8, area, 0);
+    @memset(area, 0);
     // Prepare the DTV
     const dtv = alignPtrCast(DTV, area.ptr + tls_image.dtv_offset);
     dtv.entries = 1;
@@ -287,7 +287,7 @@ pub fn prepareTLS(area: []u8) usize {
         .VariantII => area.ptr + tls_image.tcb_offset,
     };
     // Copy the data
-    mem.copy(u8, area[tls_image.data_offset..], tls_image.init_data);
+    @memcpy(area[tls_image.data_offset..][0..tls_image.init_data.len], tls_image.init_data);
 
     // Return the corrected value (if needed) for the tp register.
     // Overflow here is not a problem, the pointer arithmetic involving the tp
diff --git a/lib/std/os/test.zig b/lib/std/os/test.zig
index 682bd4f6f8..f694ea277a 100644
--- a/lib/std/os/test.zig
+++ b/lib/std/os/test.zig
@@ -587,7 +587,7 @@ test "mmap" {
         try testing.expect(mem.eql(u8, data, &[_]u8{0x00} ** 1234));
 
         // Make sure the memory is writeable as requested
-        std.mem.set(u8, data, 0x55);
+        @memset(data, 0x55);
         try testing.expect(mem.eql(u8, data, &[_]u8{0x55} ** 1234));
     }
 
diff --git a/lib/std/os/uefi/protocols/device_path_protocol.zig b/lib/std/os/uefi/protocols/device_path_protocol.zig
index fb497a79da..2365b0cb2e 100644
--- a/lib/std/os/uefi/protocols/device_path_protocol.zig
+++ b/lib/std/os/uefi/protocols/device_path_protocol.zig
@@ -48,7 +48,7 @@ pub const DevicePathProtocol = extern struct {
         // DevicePathProtocol for the extra node before the end
         var buf = try allocator.alloc(u8, path_size + 2 * (path.len + 1) + @sizeOf(DevicePathProtocol));
 
-        mem.copy(u8, buf, @ptrCast([*]const u8, self)[0..path_size]);
+        @memcpy(buf[0..path_size.len], @ptrCast([*]const u8, self)[0..path_size]);
 
         // Pointer to the copy of the end node of the current chain, which is - 4 from the buffer
         // as the end node itself is 4 bytes (type: u8 + subtype: u8 + length: u16).
diff --git a/lib/std/os/windows.zig b/lib/std/os/windows.zig
index 23139c9f92..6d654f1c20 100644
--- a/lib/std/os/windows.zig
+++ b/lib/std/os/windows.zig
@@ -754,7 +754,7 @@ pub fn CreateSymbolicLink(
         .Flags = if (dir) |_| SYMLINK_FLAG_RELATIVE else 0,
     };
 
-    std.mem.copy(u8, buffer[0..], std.mem.asBytes(&symlink_data));
+    @memcpy(buffer[0..@sizeOf(SYMLINK_DATA)], std.mem.asBytes(&symlink_data));
     @memcpy(buffer[@sizeOf(SYMLINK_DATA)..][0 .. target_path.len * 2], @ptrCast([*]const u8, target_path));
     const paths_start = @sizeOf(SYMLINK_DATA) + target_path.len * 2;
     @memcpy(buffer[paths_start..][0 .. target_path.len * 2], @ptrCast([*]const u8, target_path));
@@ -1208,8 +1208,8 @@ pub fn GetFinalPathNameByHandle(
 
                     if (out_buffer.len < drive_letter.len + file_name_u16.len) return error.NameTooLong;
 
-                    mem.copy(u16, out_buffer, drive_letter);
-                    mem.copy(u16, out_buffer[drive_letter.len..], file_name_u16);
+                    @memcpy(out_buffer[0..drive_letter.len], drive_letter);
+                    mem.copyForwards(u16, out_buffer[drive_letter.len..][0..file_name_u16.len], file_name_u16);
                     const total_len = drive_letter.len + file_name_u16.len;
 
                     // Validate that DOS does not contain any spurious nul bytes.
@@ -2012,7 +2012,7 @@ pub fn sliceToPrefixedFileW(s: []const u8) !PathSpace {
     }
     const prefix_u16 = [_]u16{ '\\', '?', '?', '\\' };
     const start_index = if (prefix_index > 0 or !std.fs.path.isAbsolute(s)) 0 else blk: {
-        mem.copy(u16, path_space.data[0..], prefix_u16[0..]);
+        path_space.data[0..prefix_u16.len].* = prefix_u16;
         break :blk prefix_u16.len;
     };
     path_space.len = start_index + try std.unicode.utf8ToUtf16Le(path_space.data[start_index..], s);
@@ -2025,7 +2025,7 @@ pub fn sliceToPrefixedFileW(s: []const u8) !PathSpace {
                 std.debug.assert(temp_path.len == path_space.len);
                 temp_path.data[path_space.len] = 0;
                 path_space.len = prefix_u16.len + try getFullPathNameW(&temp_path.data, path_space.data[prefix_u16.len..]);
-                mem.copy(u16, &path_space.data, &prefix_u16);
+                path_space.data[0..prefix_u16.len].* = prefix_u16;
                 std.debug.assert(path_space.data[path_space.len] == 0);
                 return path_space;
             }
@@ -2053,12 +2053,12 @@ pub fn wToPrefixedFileW(s: []const u16) !PathSpace {
 
     const start_index = if (mem.startsWith(u16, s, &[_]u16{ '\\', '?' })) 0 else blk: {
         const prefix = [_]u16{ '\\', '?', '?', '\\' };
-        mem.copy(u16, path_space.data[0..], &prefix);
+        path_space.data[0..prefix.len].* = prefix;
         break :blk prefix.len;
     };
     path_space.len = start_index + s.len;
     if (path_space.len > path_space.data.len) return error.NameTooLong;
-    mem.copy(u16, path_space.data[start_index..], s);
+    @memcpy(path_space.data[start_index..][0..s.len], s);
     // > File I/O functions in the Windows API convert "/" to "\" as part of
     // > converting the name to an NT-style name, except when using the "\\?\"
     // > prefix as detailed in the following sections.