Concatenation of wide and narrow string literals has not always been supported in C or C++, and even when supported, the meaning may be unclear to
the reader. Concatenation of string literals with different encodings is only conditionally supported, and may be removed in a future version of the
language.
Therefore, only string literals with the same prefix should be concatenated together.
Noncompliant code example
wchar_t n_array[] = "Hello" L"World"; // Noncompliant
wchar_t w_array[] = L"Hello" "World"; // Noncompliant
Compliant solution
char_t n_array[] = "Hello" "World"; // Compliant
wchar_t w_array[] = L"Hello" L"World"; // Compliant
