diff --git a/src/Sema.zig b/src/Sema.zig index 41e30cb824..c99e39d788 100644 --- a/src/Sema.zig +++ b/src/Sema.zig @@ -22146,7 +22146,7 @@ fn zirMemcpy(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!void const len = try sema.usizeCast(block, dest_src, len_u64); for (0..len) |i| { const elem_index = try sema.addIntUnsigned(Type.usize, i); - const dest_elem_ptr = try sema.elemPtr( + const dest_elem_ptr = try sema.elemPtrOneLayerOnly( block, src, dest_ptr, @@ -22155,7 +22155,7 @@ fn zirMemcpy(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!void true, // init false, // oob_safety ); - const src_elem_ptr = try sema.elemPtr( + const src_elem_ptr = try sema.elemPtrOneLayerOnly( block, src, src_ptr, diff --git a/test/behavior/memcpy.zig b/test/behavior/memcpy.zig index a2aad42402..af86c09113 100644 --- a/test/behavior/memcpy.zig +++ b/test/behavior/memcpy.zig @@ -65,3 +65,16 @@ fn testMemcpyDestManyPtr() !void { try expect(buf[3] == 'l'); try expect(buf[4] == 'o'); } + +comptime { + const S = struct { + buffer: [8]u8 = undefined, + fn set(self: *@This(), items: []const u8) void { + @memcpy(self.buffer[0..items.len], items); + } + }; + + var s = S{}; + s.set("hello"); + if (!std.mem.eql(u8, s.buffer[0..5], "hello")) @compileError("bad"); +}