cXXX1 - Integer Constant Expression Initialized `const` Integer Declarations are Implicitly `constexpr`

[ThePhD]

What it says on the tin.

Latest draft: https://thephd.dev/_vendor/future_cxx/papers/C%20-%20Initialized%20const%20Integer%20Declarations.html

[fuhsnn]

Came across a real world example: https://gitlab.freedesktop.org/wlroots/wlroots/-/blob/master/render/vulkan/renderer.c?ref_type=heads#L43

#include <vulkan/vulkan.h>
static const VkDeviceSize min_stage_size = 1024 * 1024; // 1MB
static const VkDeviceSize max_stage_size = 256 * min_stage_size; // 256MB

The build system passes -O0 to compile this file, so now I have to enable this at all optimization levels