Replace a lot of 'static const' with 'constexpr' or 'const'.
'static const' means, there must be at most one of these, and initialize it at
compile time if possible or runtime if necessary. This leads to unexpected
code execution, and TSAN* will complain about races on the guard variables.
Generally 'constexpr' or 'const' are better choices. Neither can cause races:
they're either intialized at compile time (constexpr) or intialized each time
independently (const).
This CL prefers constexpr where possible, and uses const where not. It even
prefers constexpr over const where they don't make a difference... I want to have
lots of examples of constexpr for people to see and mimic.
The scoped-to-class static has nothing to do with any of this, and is not changed.
* Not yet on the bots, which use an older TSAN.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2300623005
Review-Url: https://codereview.chromium.org/2300623005
diff --git a/gm/bitmappremul.cpp b/gm/bitmappremul.cpp
index 172612d..31a5650 100644
--- a/gm/bitmappremul.cpp
+++ b/gm/bitmappremul.cpp
@@ -18,9 +18,9 @@
* This tests both the ARGB4444 and ARGB8888 bitmap configurations.
*/
-static const int SLIDE_SIZE = 256;
-static const int PIXEL_SIZE_8888 = SLIDE_SIZE / 256;
-static const int PIXEL_SIZE_4444 = SLIDE_SIZE / 16;
+constexpr int SLIDE_SIZE = 256;
+constexpr int PIXEL_SIZE_8888 = SLIDE_SIZE / 256;
+constexpr int PIXEL_SIZE_4444 = SLIDE_SIZE / 16;
static void init_bitmap(SkColorType ct, SkBitmap* bitmap) {
bitmap->allocPixels(SkImageInfo::Make(SLIDE_SIZE, SLIDE_SIZE, ct,