Re: [boost] [metaparse] performance comparisons?

Louis Dionne wrote:

`constexpr` char arrays and character packs are not equivalent. The problem is that constexpr-ness is stripped away by argument passing. For illustration, consider the following example:

template <typename CompileTimeString> void f(CompileTimeString s) { static_assert(s == "abc", ""); }

constexpr std::string_literal<n> n4121 = "abc"; constexpr auto n4236 = "abc"_s;

f(n4121); // error: s is not constexpr within the body of f f(n4236); // ok: the value of s is contained in its type

I assume that you mean for 'f' to be constexpr?