patch 9.0.1917: undefined behaviour with python function pointer Commit: https://github.com/vim/vim/commit/d606fccf6fd716bda43a8e1d11d898f438d28b82 Author: Yee Cheng Chin <ychin.git@gmail.com> Date: Wed Sep 20 19:59:47 2023 +0200 patch 9.0.1917: undefined behaviour with python function pointer Problem: undefined behaviour with python function pointer Solution: correctly cast function pointers from void Fix more undefined behaviors in if_python Fix remaining UBSAN errors from Clang 17 in if_python in casting function pointers. Also fix a mistake where `PyMem_Free()` should be returning void, by the dynamic build is mistakenly casting it as a function that returns an int. closes: #13128 Signed-off-by: Christian Brabandt <cb@256bit.org> Co-authored-by: Yee Cheng Chin <ychin.git@gmail.com>

" Test Ex := command.

func Test_ex_equal()
  new
  call setline(1, ["foo\tbar", "bar\tfoo"])

  let a = execute('=')
  call assert_equal("\n2", a)

  let a = execute('=#')
  call assert_equal("\n2\n  1 foo     bar", a)

  let a = execute('=l')
  call assert_equal("\n2\nfoo^Ibar$", a)

  let a = execute('=p')
  call assert_equal("\n2\nfoo     bar", a)

  let a = execute('=l#')
  call assert_equal("\n2\n  1 foo^Ibar$", a)

  let a = execute('=p#')
  call assert_equal("\n2\n  1 foo     bar", a)

  let a = execute('.=')
  call assert_equal("\n1", a)

  call assert_fails('3=', 'E16:')
  call assert_fails('=x', 'E488:')

  bwipe!
endfunc

" vim: shiftwidth=2 sts=2 expandtab