/in/foo.cc:1:5: error: stray '##' in program
    1 |     ###C++ CODE
      |     ^~
/in/foo.cc:1:7: error: stray '#' in program
    1 |     ###C++ CODE
      |       ^
/in/foo.cc:1:8: error: 'C' does not name a type
    1 |     ###C++ CODE
      |        ^
In file included from /usr/include/c++/12/cmath:45,
                 from /usr/include/c++/12/math.h:36,
                 from /in/foo.cc:3:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:349:1: error: '__intmax_t' does not name a type; did you mean '__int128_t'?
  349 | __MATHDECL (__intmax_t, fromfp,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:349:1: error: '__intmax_t' does not name a type; did you mean '__int128_t'?
  349 | __MATHDECL (__intmax_t, fromfp,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:354:1: error: '__uintmax_t' does not name a type; did you mean '__uint128_t'?
  354 | __MATHDECL (__uintmax_t, ufromfp,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:354:1: error: '__uintmax_t' does not name a type; did you mean '__uint128_t'?
  354 | __MATHDECL (__uintmax_t, ufromfp,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:360:1: error: '__intmax_t' does not name a type; did you mean '__int128_t'?
  360 | __MATHDECL (__intmax_t, fromfpx,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:360:1: error: '__intmax_t' does not name a type; did you mean '__int128_t'?
  360 | __MATHDECL (__intmax_t, fromfpx,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:366:1: error: '__uintmax_t' does not name a type; did you mean '__uint128_t'?
  366 | __MATHDECL (__uintmax_t, ufromfpx,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:366:1: error: '__uintmax_t' does not name a type; did you mean '__uint128_t'?
  366 | __MATHDECL (__uintmax_t, ufromfpx,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:349:1: error: '__intmax_t' does not name a type; did you mean '__int128_t'?
  349 | __MATHDECL (__intmax_t, fromfp,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:349:1: error: '__intmax_t' does not name a type; did you mean '__int128_t'?
  349 | __MATHDECL (__intmax_t, fromfp,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:354:1: error: '__uintmax_t' does not name a type; did you mean '__uint128_t'?
  354 | __MATHDECL (__uintmax_t, ufromfp,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:354:1: error: '__uintmax_t' does not name a type; did you mean '__uint128_t'?
  354 | __MATHDECL (__uintmax_t, ufromfp,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:360:1: error: '__intmax_t' does not name a type; did you mean '__int128_t'?
  360 | __MATHDECL (__intmax_t, fromfpx,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:360:1: error: '__intmax_t' does not name a type; did you mean '__int128_t'?
  360 | __MATHDECL (__intmax_t, fromfpx,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:366:1: error: '__uintmax_t' does not name a type; did you mean '__uint128_t'?
  366 | __MATHDECL (__uintmax_t, ufromfpx,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:366:1: error: '__uintmax_t' does not name a type; did you mean '__uint128_t'?
  366 | __MATHDECL (__uintmax_t, ufromfpx,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:349:1: error: '__intmax_t' does not name a type; did you mean '__int128_t'?
  349 | __MATHDECL (__intmax_t, fromfp,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:349:1: error: '__intmax_t' does not name a type; did you mean '__int128_t'?
  349 | __MATHDECL (__intmax_t, fromfp,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:354:1: error: '__uintmax_t' does not name a type; did you mean '__uint128_t'?
  354 | __MATHDECL (__uintmax_t, ufromfp,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:354:1: error: '__uintmax_t' does not name a type; did you mean '__uint128_t'?
  354 | __MATHDECL (__uintmax_t, ufromfp,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:360:1: error: '__intmax_t' does not name a type; did you mean '__int128_t'?
  360 | __MATHDECL (__intmax_t, fromfpx,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:360:1: error: '__intmax_t' does not name a type; did you mean '__int128_t'?
  360 | __MATHDECL (__intmax_t, fromfpx,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:366:1: error: '__uintmax_t' does not name a type; did you mean '__uint128_t'?
  366 | __MATHDECL (__uintmax_t, ufromfpx,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:366:1: error: '__uintmax_t' does not name a type; did you mean '__uint128_t'?
  366 | __MATHDECL (__uintmax_t, ufromfpx,, (_Mdouble_ __x, int __round,
      | ^~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:53:1: error: '_Float32' does not name a type; did you mean '_Float16'?
   53 | __MATHCALL_VEC (acos,, (_Mdouble_ __x));
      | ^~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:53:1: error: '_Float32' does not name a type; did you mean '_Float16'?
   53 | __MATHCALL_VEC (acos,, (_Mdouble_ __x));
      | ^~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:55:1: error: '_Float32' does not name a type; did you mean '_Float16'?
   55 | __MATHCALL_VEC (asin,, (_Mdouble_ __x));
      | ^~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:55:1: error: '_Float32' does not name a type; did you mean '_Float16'?
   55 | __MATHCALL_VEC (asin,, (_Mdouble_ __x));
      | ^~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:57:1: error: '_Float32' does not name a type; did you mean '_Float16'?
   57 | __MATHCALL_VEC (atan,, (_Mdouble_ __x));
      | ^~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:57:1: error: '_Float32' does not name a type; did you mean '_Float16'?
   57 | __MATHCALL_VEC (atan,, (_Mdouble_ __x));
      | ^~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:59:1: error: '_Float32' does not name a type; did you mean '_Float16'?
   59 | __MATHCALL_VEC (atan2,, (_Mdouble_ __y, _Mdouble_ __x));
      | ^~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:59:1: error: '_Float32' does not name a type; did you mean '_Float16'?
   59 | __MATHCALL_VEC (atan2,, (_Mdouble_ __y, _Mdouble_ __x));
      | ^~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:62:1: error: '_Float32' does not name a type; did you mean '_Float16'?
   62 | __MATHCALL_VEC (cos,, (_Mdouble_ __x));
      | ^~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:62:1: error: '_Float32' does not name a type; did you mean '_Float16'?
   62 | __MATHCALL_VEC (cos,, (_Mdouble_ __x));
      | ^~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:64:1: error: '_Float32' does not name a type; did you mean '_Float16'?
   64 | __MATHCALL_VEC (sin,, (_Mdouble_ __x));
      | ^~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:64:1: error: '_Float32' does not name a type; did you mean '_Float16'?
   64 | __MATHCALL_VEC (sin,, (_Mdouble_ __x));
      | ^~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:66:1: error: '_Float32' does not name a type; did you mean '_Float16'?
   66 | __MATHCALL_VEC (tan,, (_Mdouble_ __x));
      | ^~~~~~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:66:1: error: '_Float32' does not name a type; did you mean '_Float16'?
   66 | __MATHCALL_VEC (tan,, (