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Userland: static vs non-static constexpr variables

Problem:
- `static` variables consume memory and sometimes are less
  optimizable.
- `static const` variables can be `constexpr`, usually.
- `static` function-local variables require an initialization check
  every time the function is run.

Solution:
- If a global `static` variable is only used in a single function then
  move it into the function and make it non-`static` and `constexpr`.
- Make all global `static` variables `constexpr` instead of `const`.
- Change function-local `static const[expr]` variables to be just
  `constexpr`.
This commit is contained in:
Lenny Maiorani 2021-05-19 09:32:07 -06:00 committed by Linus Groh
parent 17ff895e1c
commit 800ea8ea96
38 changed files with 192 additions and 184 deletions

View file

@ -59,7 +59,7 @@ WindowManager::~WindowManager()
NonnullRefPtr<Cursor> WindowManager::get_cursor(const String& name)
{
static const auto s_default_cursor_path = "/res/cursors/arrow.x2y2.png";
constexpr auto s_default_cursor_path = "/res/cursors/arrow.x2y2.png";
auto path = m_config->read_entry("Cursor", name, s_default_cursor_path);
auto gb = Gfx::Bitmap::load_from_file(path, compositor_icon_scale());
if (gb)