Macro clash with template argument I when including <complex.h>

[radareclipse]

nameof version: 0.10.4

<complex.h> defines I as a shorthand for the imaginary constant $i$. This mangles the template argument I and causes compilation to fail.

(Context is that I'm working with math libraries that transitively include <complex.h>.)

MWE:

#include <complex.h>
#include <iostream>

#include <nameof.hpp>

class Minimal {};

int main() {
  Minimal mini{};
  std::cout << NAMEOF_SHORT_TYPE_RTTI(mini) << '\n';
  return 0;
}

Remove the <complex.h> include and compilation succeeds.

Compiler nonsense (g++ 13.3.0):

In file included from /usr/include/c++/13/complex.h:38,
                 from src/minimal.cpp:1:
nameof.hpp:276:30: error: expected ‘>’ before ‘(’ token
  276 |   template <std::uint16_t... I>
      |                              ^
In file included from src/minimal.cpp:4:
nameof.hpp:277:76: error: expansion pattern ‘(__complex__ float){0.0f, 1.0e+0f}’ contains no parameter packs
  277 |   constexpr cstring(string_view str, std::integer_sequence<std::uint16_t, I...>) noexcept : chars_{str[I]..., '\0'} {}
      |                                                                            ^~~
nameof.hpp:277:79: error: template argument 2 is invalid
  277 |   constexpr cstring(string_view str, std::integer_sequence<std::uint16_t, I...>) noexcept : chars_{str[I]..., '\0'} {}
      |                                                                               ^
nameof.hpp: In constructor ‘constexpr nameof::cstring<N>::cstring(std::string_view, int)’:
nameof.hpp:277:103: error: no match for ‘operator[]’ (operand types are ‘std::string_view’ {aka ‘std::basic_string_view<char>’} and ‘__complex__ float’)
  277 |   constexpr cstring(string_view str, std::integer_sequence<std::uint16_t, I...>) noexcept : chars_{str[I]..., '\0'} {}
      |                                                                                                       ^
In file included from /usr/include/c++/13/bits/basic_string.h:47,
                 from /usr/include/c++/13/string:54,
                 from /usr/include/c++/13/bits/locale_classes.h:40,
                 from /usr/include/c++/13/bits/ios_base.h:41,
                 from /usr/include/c++/13/ios:44,
                 from /usr/include/c++/13/istream:40,
                 from /usr/include/c++/13/sstream:40,
                 from /usr/include/c++/13/complex:45,
                 from /usr/include/c++/13/ccomplex:39,
                 from /usr/include/c++/13/complex.h:32:
/usr/include/c++/13/string_view:254:7: note: candidate: ‘constexpr const std::basic_string_view<_CharT, _Traits>::value_type& std::basic_string_view<_CharT, _Traits>::operator[](size_type) const [with _CharT = char; _Traits = std::char_traits<char>; const_reference = const char&; size_type = long unsigned int]’
  254 |       operator[](size_type __pos) const noexcept
      |       ^~~~~~~~
/usr/include/c++/13/string_view:254:28: note:   no known conversion for argument 1 from ‘__complex__ float’ to ‘std::basic_string_view<char>::size_type’ {aka ‘long unsigned int’}
  254 |       operator[](size_type __pos) const noexcept
      |                  ~~~~~~~~~~^~~~~
nameof.hpp: At global scope:
nameof.hpp:528:20: error: expected nested-name-specifier before ‘(’ token
  528 | template <typename I>
      |                    ^
nameof.hpp:528:20: error: expected ‘)’ before ‘__extension__’
  528 | template <typename I>
      |                    ^
nameof.hpp:528:20: error: expected ‘>’ before ‘__extension__’
nameof.hpp:528:20: error: expected unqualified-id before ‘)’ token
  528 | template <typename I>
      |                    ^
nameof.hpp:665:76: error: expected ‘)’ before ‘__extension__’
  665 | template <typename E, bool IsFlags, std::size_t Size, int Min, std::size_t I>
      |                                                                            ^
nameof.hpp:665:76: error: expected ‘>’ before ‘__extension__’
nameof.hpp:665:76: error: expected unqualified-id before ‘)’ token
  665 | template <typename E, bool IsFlags, std::size_t Size, int Min, std::size_t I>
      |                                                                            ^
nameof.hpp:744:52: error: expected ‘>’ before ‘(’ token
  744 | template <typename E, bool IsFlags, std::size_t... I>
      |                                                    ^
nameof.hpp:745:43: error: expansion pattern ‘(__complex__ float){0.0f, 1.0e+0f}’ contains no parameter packs
  745 | constexpr auto names(std::index_sequence<I...>) noexcept {
      |                                           ^~~
nameof.hpp:745:46: error: template argument 1 is invalid
  745 | constexpr auto names(std::index_sequence<I...>) noexcept {
      |                                              ^
nameof.hpp: In function ‘constexpr auto nameof::detail::names(int)’:
nameof.hpp:746:60: error: template argument 2 is invalid
  746 |   constexpr auto names = std::array<string_view, sizeof...(I)>{{enum_name_v<E, values_v<E, IsFlags>[I]>...}};
      |