警告 C26495

[wfs20]

警告 C26495 未初始化变量 jnk0le::Ringbuffer<char const *,256,0,0,unsigned __int64>::data_buff。始终初始化成员变量(type.6)。

[jnk0le]

initializing this array will cause the memcpy zeroing, or calling constructors for every element

only something like this:

    //remove constructors
    alignas(cacheline_size) std::atomic<index_t> head = {}; //!< head index
    alignas(cacheline_size) std::atomic<index_t> tail = {}; //!< tail index
    alignas(cacheline_size) T data_buff[buffer_size] = {}; //!< actual buffer

doesn't emit global constructor (for POD T, on gcc)

[jnk0le]

    //remove constructors
    alignas(cacheline_size) std::atomic<index_t> head = {}; //!< head index
    alignas(cacheline_size) std::atomic<index_t> tail = {}; //!< tail index
    alignas(cacheline_size) T data_buff[buffer_size]; //!< actual buffer

This again emits constructors for intializing head and tail in globals/statics and warning is still there

[jnk0le]

[[uninitialized]] of course is not a thing.

At least for POD, llvm recognizes .bss placement and workaround constructor is not necessary.

[jnk0le]

non POD T constructors are always called