M0-1-3: This rule doesn't consider constexpr variables used in template instantiations

[rak3-sh]

Affected rules

• M0-1-3

Description

Constexpr variables which are used in template instantiations are not considered "used".

Example

template <int t>
class CharBuffer
{
  public:
  int member[t];
  CharBuffer():member{0}{}
};

int foo()
{
  constexpr int line_length = 1024U;
  CharBuffer<line_length> buffer{}; // line_length is used here but reported as a violation for M0-1-3
  return buffer.member[0];
}