From b457a58e34d43d49a01dd93ec356099d232bd713 Mon Sep 17 00:00:00 2001 From: Jan Edmund Lazo Date: Sun, 28 Jul 2019 16:54:06 -0400 Subject: vim-patch:8.1.0990: floating point exception with "%= 0" and "/= 0" Problem: Floating point exception with "%= 0" and "/= 0". Solution: Avoid dividing by zero. (Dominique Pelle, closes vim/vim#4058) https://github.com/vim/vim/commit/e21c1580b7acb598a6e3c38565434fe5d0e2ad7a --- src/nvim/testdir/test_vimscript.vim | 39 ++++++++++++++++++++++++++++++++++++- 1 file changed, 38 insertions(+), 1 deletion(-) (limited to 'src/nvim/testdir/test_vimscript.vim') diff --git a/src/nvim/testdir/test_vimscript.vim b/src/nvim/testdir/test_vimscript.vim index f3e40e1210..f39e53d6dd 100644 --- a/src/nvim/testdir/test_vimscript.vim +++ b/src/nvim/testdir/test_vimscript.vim @@ -21,7 +21,7 @@ com! -nargs=1 Xout call Xout() " " Create a script that consists of the body of the function a:funcname. " Replace any ":return" by a ":finish", any argument variable by a global -" variable, and and every ":call" by a ":source" for the next following argument +" variable, and every ":call" by a ":source" for the next following argument " in the variable argument list. This function is useful if similar tests are " to be made for a ":return" from a function call or a ":finish" in a script " file. @@ -1310,6 +1310,43 @@ func Test_compound_assignment_operators() let x .= 'n' call assert_equal('2n', x) + " Test special cases: division or modulus with 0. + let x = 1 + let x /= 0 + if has('num64') + call assert_equal(0x7FFFFFFFFFFFFFFF, x) + else + call assert_equal(0x7fffffff, x) + endif + + let x = -1 + let x /= 0 + if has('num64') + call assert_equal(-0x7FFFFFFFFFFFFFFF, x) + else + call assert_equal(-0x7fffffff, x) + endif + + let x = 0 + let x /= 0 + if has('num64') + call assert_equal(-0x7FFFFFFFFFFFFFFF - 1, x) + else + call assert_equal(-0x7FFFFFFF - 1, x) + endif + + let x = 1 + let x %= 0 + call assert_equal(0, x) + + let x = -1 + let x %= 0 + call assert_equal(0, x) + + let x = 0 + let x %= 0 + call assert_equal(0, x) + " Test for string let x = 'str' let x .= 'ing' -- cgit