Mercurial > vim
view runtime/syntax/cpp.vim @ 34074:1629cc65d78d v9.1.0006
patch 9.1.0006: is*() and to*() function may be unsafe
Commit: https://github.com/vim/vim/commit/184f71cc6868a240dc872ed2852542bbc1d43e28
Author: Keith Thompson <Keith.S.Thompson@gmail.com>
Date: Thu Jan 4 21:19:04 2024 +0100
patch 9.1.0006: is*() and to*() function may be unsafe
Problem: is*() and to*() function may be unsafe
Solution: Add SAFE_* macros and start using those instead
(Keith Thompson)
Use SAFE_() macros for is*() and to*() functions
The standard is*() and to*() functions declared in <ctype.h> have
undefined behavior for negative arguments other than EOF. If plain char
is signed, passing an unchecked value from argv for from user input
to one of these functions has undefined behavior.
Solution: Add SAFE_*() macros that cast the argument to unsigned char.
Most implementations behave sanely for negative arguments, and most
character values in practice are non-negative, but it's still best
to avoid undefined behavior.
The change from #13347 has been omitted, as this has already been
separately fixed in commit ac709e2fc0db6d31abb7da96f743c40956b60c3a
(v9.0.2054)
fixes: #13332
closes: #13347
Signed-off-by: Keith Thompson <Keith.S.Thompson@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Thu, 04 Jan 2024 21:30:04 +0100 |
parents | c62bca3b8d82 |
children | 4aa752e16fc2 |
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" Vim syntax file " Language: C++ " Current Maintainer: vim-jp (https://github.com/vim-jp/vim-cpp) " Previous Maintainer: Ken Shan <ccshan@post.harvard.edu> " Last Change: 2023 Dec 08 " quit when a syntax file was already loaded if exists("b:current_syntax") finish endif " inform C syntax that the file was included from cpp.vim let b:filetype_in_cpp_family = 1 " Read the C syntax to start with runtime! syntax/c.vim unlet b:current_syntax unlet b:filetype_in_cpp_family " C++ extensions syn keyword cppStatement new delete this friend using syn keyword cppAccess public protected private syn keyword cppModifier inline virtual explicit export syn keyword cppType bool wchar_t syn keyword cppExceptions throw try catch syn keyword cppOperator operator typeid syn keyword cppOperator and bitor or xor compl bitand and_eq or_eq xor_eq not not_eq syn match cppCast "\<\(const\|static\|dynamic\|reinterpret\)_cast\s*<"me=e-1 syn match cppCast "\<\(const\|static\|dynamic\|reinterpret\)_cast\s*$" syn keyword cppStorageClass mutable syn keyword cppStructure class typename template namespace syn keyword cppBoolean true false syn keyword cppConstant __cplusplus " C++ 11 extensions if !exists("cpp_no_cpp11") syn keyword cppModifier override final syn keyword cppType nullptr_t auto syn keyword cppExceptions noexcept syn keyword cppStorageClass constexpr decltype thread_local syn keyword cppConstant nullptr syn keyword cppConstant ATOMIC_FLAG_INIT ATOMIC_VAR_INIT syn keyword cppConstant ATOMIC_BOOL_LOCK_FREE ATOMIC_CHAR_LOCK_FREE syn keyword cppConstant ATOMIC_CHAR16_T_LOCK_FREE ATOMIC_CHAR32_T_LOCK_FREE syn keyword cppConstant ATOMIC_WCHAR_T_LOCK_FREE ATOMIC_SHORT_LOCK_FREE syn keyword cppConstant ATOMIC_INT_LOCK_FREE ATOMIC_LONG_LOCK_FREE syn keyword cppConstant ATOMIC_LLONG_LOCK_FREE ATOMIC_POINTER_LOCK_FREE syn region cppRawString matchgroup=cppRawStringDelimiter start=+\%(u8\|[uLU]\)\=R"\z([[:alnum:]_{}[\]#<>%:;.?*\+\-/\^&|~!=,"']\{,16}\)(+ end=+)\z1"\(sv\|s\|_[_a-zA-Z][_a-zA-Z0-9]*\)\=+ contains=@Spell syn match cppCast "\<\(const\|static\|dynamic\)_pointer_cast\s*<"me=e-1 syn match cppCast "\<\(const\|static\|dynamic\)_pointer_cast\s*$" endif " C++ 14 extensions if !exists("cpp_no_cpp14") syn match cppNumbers display transparent "\<\d\|\.\d" contains=cppNumber,cppFloat syn match cppNumber display contained "\<0\([Uu]\=\([Ll]\|LL\|ll\)\|\([Ll]\|LL\|ll\)\=[Uu]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>" syn match cppNumber display contained "\<[1-9]\('\=\d\+\)*\([Uu]\=\([Ll]\|LL\|ll\)\|\([Ll]\|LL\|ll\)\=[Uu]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>" syn match cppNumber display contained "\<0\o\+\([Uu]\=\([Ll]\|LL\|ll\)\|\([Ll]\|LL\|ll\)\=[Uu]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>" syn match cppNumber display contained "\<0b[01]\('\=[01]\+\)*\([Uu]\=\([Ll]\|LL\|ll\)\|\([Ll]\|LL\|ll\)\=[Uu]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>" syn match cppNumber display contained "\<0x\x\('\=\x\+\)*\([Uu]\=\([Ll]\|LL\|ll\)\|\([Ll]\|LL\|ll\)\=[Uu]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>" syn match cppFloat display contained "\<\d\+\.\d*\(e[-+]\=\d\+\)\=\([FfLl]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>" syn match cppFloat display contained "\<\.\d\+\(e[-+]\=\d\+\)\=\([FfLl]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>" syn match cppFloat display contained "\<\d\+e[-+]\=\d\+\([FfLl]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>" syn region cppString start=+\(L\|u\|u8\|U\)\="+ skip=+\\\\\|\\"\|\\$+ excludenl end=+"\(sv\|s\|_\i*\)\=+ end='$' contains=cSpecial,cFormat,@Spell endif " C++ 17 extensions if !exists("cpp_no_cpp17") syn match cppCast "\<reinterpret_pointer_cast\s*<"me=e-1 syn match cppCast "\<reinterpret_pointer_cast\s*$" syn match cppFloat display contained "\<0x\x*\.\x\+p[-+]\=\d\+\([FfLl]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>" syn match cppFloat display contained "\<0x\x\+\.\=p[-+]\=\d\+\([FfLl]\|i[fl]\=\|h\|min\|s\|ms\|us\|ns\|_\i*\)\=\>" " TODO: push this up to c.vim if/when supported in C23 syn match cppCharacter "u8'[^\\]'" syn match cppCharacter "u8'[^']*'" contains=cSpecial if exists("c_gnu") syn match cppSpecialError "u8'\\[^'\"?\\abefnrtv]'" syn match cppSpecialCharacter "u8'\\['\"?\\abefnrtv]'" else syn match cppSpecialError "u8'\\[^'\"?\\abfnrtv]'" syn match cppSpecialCharacter "u8'\\['\"?\\abfnrtv]'" endif syn match cppSpecialCharacter display "u8'\\\o\{1,3}'" syn match cppSpecialCharacter display "u8'\\x\x\+'" endif " C++ 20 extensions if !exists("cpp_no_cpp20") syn match cppNumber display contained "\<0\(y\|d\)\>" syn match cppNumber display contained "\<[1-9]\('\=\d\+\)*\(y\|d\)\>" syn match cppNumber display contained "\<0\o\+\(y\|d\)\>" syn match cppNumber display contained "\<0b[01]\('\=[01]\+\)*\(y\|d\)\>" syn match cppNumber display contained "\<0x\x\('\=\x\+\)*\(y\|d\)\>" syn keyword cppStatement co_await co_return co_yield requires syn keyword cppStorageClass consteval constinit syn keyword cppStructure concept syn keyword cppType char8_t syn keyword cppModule import module export endif " The minimum and maximum operators in GNU C++ syn match cppMinMax "[<>]?" " Default highlighting hi def link cppAccess cppStatement hi def link cppCast cppStatement hi def link cppExceptions Exception hi def link cppOperator Operator hi def link cppStatement Statement hi def link cppModifier Type hi def link cppType Type hi def link cppStorageClass StorageClass hi def link cppStructure Structure hi def link cppBoolean Boolean hi def link cppCharacter cCharacter hi def link cppSpecialCharacter cSpecialCharacter hi def link cppSpecialError cSpecialError hi def link cppConstant Constant hi def link cppRawStringDelimiter Delimiter hi def link cppRawString String hi def link cppString String hi def link cppNumber Number hi def link cppFloat Number hi def link cppModule Include let b:current_syntax = "cpp" " vim: ts=8