patch 9.0.2114: overflow detection not accurate when adding digits Commit: https://github.com/vim/vim/commit/22cbc8a4e17ce61aa460c451a26e1bff2c3d2af9 Author: Christian Brabandt <cb@256bit.org> Date: Sun Nov 19 10:47:21 2023 +0100 patch 9.0.2114: overflow detection not accurate when adding digits Problem: overflow detection not accurate when adding digits Solution: Use a helper function Use a helper function to better detect overflows before adding integer digits to a long or an integer variable respectively. Signal the overflow to the caller function. closes: #13539 Signed-off-by: Christian Brabandt <cb@256bit.org> Signed-off-by: Michael Henry <vim@drmikehenry.com> Signed-off-by: Ernie Rael <errael@raelity.com>

" Vim syntax file
" Language: FvwmM4 preprocessed Fvwm2 configuration files
" Maintainer: David Ne\v{c}as (Yeti) <yeti@physics.muni.cz>
" Last Change: 2002-06-02
" URI: http://physics.muni.cz/~yeti/download/syntax/fvwmm4.vim

" Setup
" quit when a syntax file was already loaded
if exists('b:current_syntax')
  finish
endif

" Let included files know they are included
if !exists('main_syntax')
  let main_syntax = 'fvwm2m4'
endif

" Include M4 syntax
runtime! syntax/m4.vim
unlet b:current_syntax

" Include Fvwm2 syntax (Fvwm1 doesn't have M4 preprocessor)
runtime! syntax/fvwm.vim
unlet b:current_syntax

" That's all!
let b:current_syntax = 'fvwm2m4'

if main_syntax == 'fvwm2m4'
  unlet main_syntax
endif