According to modern C++ guidelines, we should prefer uniform initialization everywhere, for example:

int x{0};

However, when I try to combine uniform initialization with C++20’s designated initializers, Clangd issues a warning.

Example:

struct S {
    int x;
};

S s{
    .x{0}  // Warning: Braces around scalar initializer
};

According to Clangd, this should be used:

S s{
    .x = 0
};

But why does Clangd warn about .x{0}? Is this syntax actually valid in C++20 or C++23? Should designated initializers with braces be avoided?