Alternative to #6294
The only remaining problems are:
/home/deen/git/ddnet/src/engine/client/backend/glsl_shader_compiler.cpp:22:26: warning: unnecessary temporary object created while calling emplace_back [modernize-use-emplace]
m_vDefines.emplace_back(SGLSLCompilerDefine(DefineName, DefineValue));
^~~~~~~~~~~~~~~~~~~~ ~
Reasoning this change is correct:
* `OldPos` is set to `m_Pos` in line 260
* `m_Pos` is not modified in between line 260 and 272 (only `m_Core.m_Pos` gets modified)
* Therefore line 269 `Dir = m_Pos - OldPos` is always `vec2(0.0, 0.0)`.
* And line 271 `Center = OldPos + Dir * 0.5 = OldPos`.
So we can pass `OldPos` to `FindEntities` in line 272. Using `OldPos` here instead of `m_Pos` makes it clear, that we use the position before the move, even though `m_Pos` also still holds the old value.
6035: Fix various issues reported by cppcheck static analyser r=def- a=Robyt3
After generating `compile_commands.json` with cmake, I ran [cppcheck](https://cppcheck.sourceforge.io/) like this:
```
cppcheck --project=compile_commands.json -DWIN64 --suppressions-list=cppcheck.supp --enable=all 2>cppcheck.log
```
With these suppressions in `cppcheck.supp`:
```
cstyleCast
useStlAlgorithm
unusedFunction
variableScope
noExplicitConstructor
useInitializationList
noConstructor
uninitMemberVar
uninitMemberVarPrivate
uninitDerivedMemberVar
uninitStructMember
uninitvar
shadowFunction
memleakOnRealloc
internalAstError
virtualCallInConstructor
unknownMacro
noOperatorEq
noCopyConstructor
```
Many of these occur too often or are false positives.
Here is a list of all remaining non-suppressed issues reported by cppcheck: [cppcheck.log](https://github.com/ddnet/ddnet/files/9997663/cppcheck.log)
And here is a list of all remaining issues including the suppressed ones: [cppcheck_all.log](https://github.com/ddnet/ddnet/files/9997662/cppcheck_all.log)
I couldn't get cppcheck's command line argument to ignore the external folders to work correctly, so I manually removed those entries from the files.
## Checklist
- [ ] Tested the change ingame
- [ ] Provided screenshots if it is a visual change
- [ ] Tested in combination with possibly related configuration options
- [ ] Written a unit test (especially base/) or added coverage to integration test
- [ ] Considered possible null pointers and out of bounds array indexing
- [ ] Changed no physics that affect existing maps
- [ ] Tested the change with [ASan+UBSan or valgrind's memcheck](https://github.com/ddnet/ddnet/#using-addresssanitizer--undefinedbehavioursanitizer-or-valgrinds-memcheck) (optional)
Co-authored-by: Robert Müller <robytemueller@gmail.com>
Found while playing the Exit when doing the part at x:35 y:219.
Verified that with the fix applied the crash doesn't happen anymore.
asan output:
```
=================================================================
==10996==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x62000001de20 at pc 0x5555575208d0 bp 0x7fffffff4710 sp 0x7fffffff4708
READ of size 4 at 0x62000001de20 thread T0
[Detaching after fork from child process 11277]
#0 0x5555575208cf in ExtractLaserInfoDDNet(CNetObj_DDNetLaser const*, CGameWorld*) /home/user/.local/bin/ddnet/src/src/game/client/laser_data.cpp:36:27
#1 0x5555575af9c8 in CGameWorld::NetObjAdd(int, int, void const*, CNetObj_EntityEx const*) /home/user/.local/bin/ddnet/src/src/game/client/prediction/gameworld.cpp:493:11
#2 0x5555574bf201 in CGameClient::UpdatePrediction() /home/user/.local/bin/ddnet/src/src/game/client/gameclient.cpp:2452:15
#3 0x5555574aad89 in CGameClient::OnNewSnapshot() /home/user/.local/bin/ddnet/src/src/game/client/gameclient.cpp:1729:3
#4 0x5555569562c7 in CClient::Update() /home/user/.local/bin/ddnet/src/src/engine/client/client.cpp:2751:22
#5 0x55555696e4bd in CClient::Run() /home/user/.local/bin/ddnet/src/src/engine/client/client.cpp:3260:4
#6 0x5555569caa8b in main /home/user/.local/bin/ddnet/src/src/engine/client/client.cpp:4753:11
#7 0x7ffff4ea9d09 in __libc_start_main csu/../csu/libc-start.c:308:16
#8 0x5555560f55c9 in _start (/home/user/.local/bin/ddnet/build-fast/DDNet+0xba15c9) (BuildId: 6d1b5aed4fc199ba75cdc083de5ada540ca4612b)
0x62000001de20 is located 0 bytes after 3488-byte region [0x62000001d080,0x62000001de20)
allocated by thread T0 here:
#0 0x55555618e36e in __interceptor_malloc (/home/user/.local/bin/ddnet/build-fast/DDNet+0xc3a36e) (BuildId: 6d1b5aed4fc199ba75cdc083de5ada540ca4612b)
#1 0x555556382591 in CSnapshotStorage::Add(int, long, int, void*, int, void*) /home/user/.local/bin/ddnet/src/src/engine/shared/snapshot.cpp:518:32
#2 0x55555693aa6e in CClient::ProcessServerPacket(CNetChunk*, int, bool) /home/user/.local/bin/ddnet/src/src/engine/client/client.cpp:2088:31
#3 0x55555694b48c in CClient::PumpNetwork() /home/user/.local/bin/ddnet/src/src/engine/client/client.cpp:2556:4
#4 0x55555695ca61 in CClient::Update() /home/user/.local/bin/ddnet/src/src/engine/client/client.cpp:2868:2
#5 0x55555696e4bd in CClient::Run() /home/user/.local/bin/ddnet/src/src/engine/client/client.cpp:3260:4
#6 0x5555569caa8b in main /home/user/.local/bin/ddnet/src/src/engine/client/client.cpp:4753:11
#7 0x7ffff4ea9d09 in __libc_start_main csu/../csu/libc-start.c:308:16
SUMMARY: AddressSanitizer: heap-buffer-overflow /home/user/.local/bin/ddnet/src/src/game/client/laser_data.cpp:36:27 in ExtractLaserInfoDDNet(CNetObj_DDNetLaser const*, CGameWorld*)
Shadow bytes around the buggy address:
0x62000001db80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x62000001dc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x62000001dc80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x62000001dd00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x62000001dd80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x62000001de00: 00 00 00 00[fa]fa fa fa fa fa fa fa fa fa fa fa
0x62000001de80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x62000001df00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x62000001df80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x62000001e000: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x62000001e080: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
==10996==ABORTING
```
According to cppcheck's `constVariable` error:
```
src\engine\client\backend\opengl\opengl_sl.cpp:74:43: style: Variable 'Define' can be declared as reference to const [constVariable]
for(CGLSLCompiler::SGLSLCompilerDefine &Define : pCompiler->m_vDefines)
^
src\engine\client\backend\vulkan\backend_vulkan.cpp:2149:12: style: Variable 'GraphicThreadCommandBuffer' can be declared as reference to const [constVariable]
auto &GraphicThreadCommandBuffer = m_vvThreadDrawCommandBuffers[i + 1][m_CurImageIndex];
^
src\engine\client\backend\vulkan\backend_vulkan.cpp:3192:9: style: Variable 'BufferObject' can be declared as reference to const [constVariable]
auto &BufferObject = m_vBufferObjects[BufferObjectIndex];
^
src\engine\client\backend\vulkan\backend_vulkan.cpp:3200:10: style: Variable 'DescrSet' can be declared as reference to const [constVariable]
auto &DescrSet = m_vTextures[State.m_Texture].m_VKStandard3DTexturedDescrSet;
^
src\engine\client\backend\vulkan\backend_vulkan.cpp:3810:13: style: Variable 'Mode' can be declared as reference to const [constVariable]
for(auto &Mode : vPresentModeList)
^
src\engine\client\backend\vulkan\backend_vulkan.cpp:3818:13: style: Variable 'Mode' can be declared as reference to const [constVariable]
for(auto &Mode : vPresentModeList)
^
src\engine\client\backend\vulkan\backend_vulkan.cpp:6511:10: style: Variable 'DescrSet' can be declared as reference to const [constVariable]
auto &DescrSet = m_vTextures[pCommand->m_State.m_Texture].m_aVKStandardTexturedDescrSets[AddressModeIndex];
^
src\engine\client\backend\vulkan\backend_vulkan.cpp:6555:10: style: Variable 'DescrSet' can be declared as reference to const [constVariable]
auto &DescrSet = m_vTextures[pCommand->m_State.m_Texture].m_VKStandard3DTexturedDescrSet;
^
src\engine\client\backend\vulkan\backend_vulkan.cpp:6660:9: style: Variable 'MemBlock' can be declared as reference to const [constVariable]
auto &MemBlock = m_vBufferObjects[BufferIndex].m_BufferObject.m_Mem;
^
src\engine\client\backend\vulkan\backend_vulkan.cpp:6799:9: style: Variable 'BufferObject' can be declared as reference to const [constVariable]
auto &BufferObject = m_vBufferObjects[BufferObjectIndex];
^
src\engine\client\backend\vulkan\backend_vulkan.cpp:6808:10: style: Variable 'DescrSet' can be declared as reference to const [constVariable]
auto &DescrSet = m_vTextures[pCommand->m_State.m_Texture].m_aVKStandardTexturedDescrSets[AddressModeIndex];
^
src\engine\client\backend\vulkan\backend_vulkan.cpp:6902:9: style: Variable 'BufferObject' can be declared as reference to const [constVariable]
auto &BufferObject = m_vBufferObjects[BufferObjectIndex];
^
src\engine\client\backend\vulkan\backend_vulkan.cpp:6907:9: style: Variable 'TextTextureDescr' can be declared as reference to const [constVariable]
auto &TextTextureDescr = m_vTextures[pCommand->m_TextTextureIndex].m_VKTextDescrSet;
^
src\engine\client\backend\vulkan\backend_vulkan.cpp:6961:9: style: Variable 'BufferObject' can be declared as reference to const [constVariable]
auto &BufferObject = m_vBufferObjects[BufferObjectIndex];
^
src\engine\client\backend\vulkan\backend_vulkan.cpp:6970:10: style: Variable 'DescrSet' can be declared as reference to const [constVariable]
auto &DescrSet = m_vTextures[State.m_Texture].m_aVKStandardTexturedDescrSets[AddressModeIndex];
^
src\game\client\components\hud.cpp:178:8: style: Variable 'aFlagCarrier' can be declared as const array [constVariable]
int aFlagCarrier[2] = {
^
src\game\client\components\hud.cpp:519:16: style: Variable 's_aTextWidth' can be declared as const array [constVariable]
static float s_aTextWidth[5] = {s_TextWidth0, s_TextWidth00, s_TextWidth000, s_TextWidth0000, s_TextWidth00000};
^
src\game\client\components\killmessages.cpp:305:30: style: Variable 'Client' can be declared as reference to const [constVariable]
CGameClient::CClientData &Client = GameClient()->m_aClients[m_aKillmsgs[r].m_KillerID];
^
src\game\client\components\killmessages.cpp:314:30: style: Variable 'Client' can be declared as reference to const [constVariable]
CGameClient::CClientData &Client = GameClient()->m_aClients[m_aKillmsgs[r].m_VictimID];
^
src\game\client\components\menus_ingame.cpp:243:12: style: Variable 'pInfoByName' can be declared as reference to const [constVariable]
for(auto &pInfoByName : m_pClient->m_Snap.m_apInfoByName)
^
src\game\client\components\menus_ingame.cpp:530:12: style: Variable 'pInfoByName' can be declared as reference to const [constVariable]
for(auto &pInfoByName : m_pClient->m_Snap.m_apInfoByName)
^
src\game\client\components\players.cpp:767:44: style: Variable 'CharacterInfo' can be declared as reference to const [constVariable]
CGameClient::CSnapState::CCharacterInfo &CharacterInfo = m_pClient->m_Snap.m_aCharacters[i];
^
src\game\client\components\spectator.cpp:122:27: style: Variable 'Snap' can be declared as reference to const [constVariable]
CGameClient::CSnapState &Snap = pSelf->m_pClient->m_Snap;
^
src\game\client\components\spectator.cpp:221:12: style: Variable 'pInfo' can be declared as reference to const [constVariable]
for(auto &pInfo : m_pClient->m_Snap.m_apInfoByDDTeamName)
^
src\game\client\gameclient.cpp:2220:15: style: Variable 'OwnClientData' can be declared as reference to const [constVariable]
CClientData &OwnClientData = m_aClients[ownID];
^
src\game\client\gameclient.cpp:2227:16: style: Variable 'cData' can be declared as reference to const [constVariable]
CClientData &cData = m_aClients[i];
^
src\game\client\prediction\entities\character.cpp:397:11: style: Variable 'aSpreading' can be declared as const array [constVariable]
float aSpreading[] = {-0.185f, -0.070f, 0, 0.070f, 0.185f};
^
src\game\client\prediction\entities\laser.cpp:53:9: style: Variable 'HitPos' can be declared as reference to const [constVariable]
vec2 &HitPos = pHit->Core()->m_Pos;
^
src\game\editor\auto_map.cpp:507:18: style: Variable 'Index' can be declared as reference to const [constVariable]
for(auto &Index : pRule->m_vIndexList)
^
src\game\editor\auto_map.cpp:518:18: style: Variable 'Index' can be declared as reference to const [constVariable]
for(auto &Index : pRule->m_vIndexList)
^
src\game\editor\editor.cpp:118:12: style: Variable 'Item' can be declared as reference to const [constVariable]
for(auto &Item : vList)
^
src\game\editor\editor.cpp:2983:11: style: Variable 'aAspects' can be declared as const array [constVariable]
float aAspects[] = {4.0f / 3.0f, 16.0f / 10.0f, 5.0f / 4.0f, 16.0f / 9.0f};
^
src\game\editor\editor.cpp:3141:15: style: Variable 's_aShift' can be declared as const array [constVariable]
static int s_aShift[] = {24, 16, 8, 0};
^
src\engine\server\server.cpp:2807:14: style: Variable 'Client' can be declared as reference to const [constVariable]
for(auto &Client : m_aClients)
^
src\engine\server\sql_string_helpers.cpp:51:6: style: Variable 'aTimes' can be declared as const array [constVariable]
int aTimes[7] =
^
src\test\secure_random.cpp:24:6: style: Variable 'BOUNDS' can be declared as const array [constVariable]
int BOUNDS[] = {2, 3, 4, 5, 10, 100, 127, 128, 129};
^
```
According to cppchecker's `constParameter` error:
```
src\engine\gfx\image_manipulation.cpp:7:58: style: Parameter 'pSrc' can be declared as pointer to const [constParameter]
static void Dilate(int w, int h, int BPP, unsigned char *pSrc, unsigned char *pDest, unsigned char AlphaThreshold = TW_DILATE_ALPHA_THRESHOLD)
^
src\engine\gfx\image_manipulation.cpp:58:67: style: Parameter 'pSrc' can be declared as pointer to const [constParameter]
static void CopyColorValues(int w, int h, int BPP, unsigned char *pSrc, unsigned char *pDest)
^
src\engine\shared\network_conn.cpp:241:42: style: Parameter 'Addr' can be declared as reference to const [constParameter]
void CNetConnection::DirectInit(NETADDR &Addr, SECURITY_TOKEN SecurityToken, SECURITY_TOKEN Token, bool Sixup)
^
src\base\system.cpp:4060:71: style: Parameter 'random' can be declared as pointer to const [constParameter]
void generate_password(char *buffer, unsigned length, unsigned short *random, unsigned random_length)
^
src\engine\client\backend\vulkan\backend_vulkan.cpp:263:38: style: Parameter 'AllocatedMemory' can be declared as reference to const [constParameter]
void Free(SMemoryHeapQueueElement &AllocatedMemory)
^
src\engine\client\backend\vulkan\backend_vulkan.cpp:1708:47: style: Parameter 'ImgExtent' can be declared as reference to const [constParameter]
static size_t ImageMipLevelCount(VkExtent3D &ImgExtent)
^
src\engine\client\backend\vulkan\backend_vulkan.cpp:2801:29: style: Parameter 'Image' can be declared as reference to const [constParameter]
void ImageBarrier(VkImage &Image, size_t MipMapBase, size_t MipMapCount, size_t LayerBase, size_t LayerCount, VkFormat Format, VkImageLayout OldLayout, VkImageLayout NewLayout)
^
src\engine\client\backend\vulkan\backend_vulkan.cpp:6495:46: style: Parameter 'ExecBuffer' can be declared as reference to const [constParameter]
void Cmd_Clear(SRenderCommandExecuteBuffer &ExecBuffer, const CCommandBuffer::SCommand_Clear *pCommand)
^
src\game\client\components\skins.cpp:83:72: style: Parameter 'pImg' can be declared as pointer to const [constParameter]
static void CheckMetrics(CSkin::SSkinMetricVariable &Metrics, uint8_t *pImg, int ImgWidth, int ImgX, int ImgY, int CheckWidth, int CheckHeight)
^
src\game\client\prediction\entities\character.h:106:37: style: Parameter 'pNewInput' can be declared as pointer to const [constParameter]
void SetInput(CNetObj_PlayerInput *pNewInput)
^
src\game\client\prediction\gameworld.cpp:245:106: style: Parameter 'pNotThis' can be declared as pointer to const [constParameter]
CCharacter *CGameWorld::IntersectCharacter(vec2 Pos0, vec2 Pos1, float Radius, vec2 &NewPos, CCharacter *pNotThis, int CollideWith, class CCharacter *pThisOnly)
^
src\game\client\prediction\gameworld.cpp:245:151: style: Parameter 'pThisOnly' can be declared as pointer to const [constParameter]
CCharacter *CGameWorld::IntersectCharacter(vec2 Pos0, vec2 Pos1, float Radius, vec2 &NewPos, CCharacter *pNotThis, int CollideWith, class CCharacter *pThisOnly)
^
src\game\client\prediction\gameworld.cpp:283:116: style: Parameter 'pNotThis' can be declared as pointer to const [constParameter]
std::list<class CCharacter *> CGameWorld::IntersectedCharacters(vec2 Pos0, vec2 Pos1, float Radius, class CEntity *pNotThis)
^
src\game\client\ui.cpp:522:180: style: Parameter 'pReadCursor' can be declared as pointer to const [constParameter]
void CUI::DoLabel(CUIElement::SUIElementRect &RectEl, const CUIRect *pRect, const char *pText, float Size, int Align, const SLabelProperties &LabelProps, int StrLen, CTextCursor *pReadCursor)
^
src\game\client\ui_scrollregion.cpp:23:86: style: Parameter 'pParams' can be declared as pointer to const [constParameter]
void CScrollRegion::Begin(CUIRect *pClipRect, vec2 *pOutOffset, CScrollRegionParams *pParams)
^
src\game\server\scoreworker.h:239:29: style: Parameter 'aTimeCp' can be declared as const array [constParameter]
void Set(float Time, float aTimeCp[NUM_CHECKPOINTS])
^
src\game\server\score.cpp:135:80: style: Parameter 'aTimeCp' can be declared as const array [constParameter]
void CScore::SaveScore(int ClientID, float Time, const char *pTimestamp, float aTimeCp[NUM_CHECKPOINTS], bool NotEligible)
^
src\game\server\teeinfo.cpp:40:57: style: Parameter 'pUseCustomColors' can be declared as pointer to const [constParameter]
CTeeInfo::CTeeInfo(const char *apSkinPartNames[6], int *pUseCustomColors, int *pSkinPartColors)
^
src\game\server\teeinfo.cpp:40:80: style: Parameter 'pSkinPartColors' can be declared as pointer to const [constParameter]
CTeeInfo::CTeeInfo(const char *apSkinPartNames[6], int *pUseCustomColors, int *pSkinPartColors)
^
```
According to cppcheck's `redundantInitialization` and `redundantAssignment` errors:
```
src\game\client\ui.cpp:456:5: style: Redundant initialization for 'tw'. The initialized value is overwritten before it is read. [redundantInitialization]
tw = TextRender()->TextWidth(0, Size, pText, -1, LabelProps.m_MaxWidth, &AlignedSize, &MaxCharacterHeightInLine);
^
src\game\client\ui.cpp:454:11: note: tw is initialized
float tw = std::numeric_limits<float>::max();
^
src\game\client\ui.cpp:456:5: note: tw is overwritten
tw = TextRender()->TextWidth(0, Size, pText, -1, LabelProps.m_MaxWidth, &AlignedSize, &MaxCharacterHeightInLine);
^
src\game\client\ui.cpp:529:5: style: Redundant initialization for 'tw'. The initialized value is overwritten before it is read. [redundantInitialization]
tw = TextRender()->TextWidth(0, Size, pText, -1, LabelProps.m_MaxWidth, &AlignedSize, &MaxCharacterHeightInLine);
^
src\game\client\ui.cpp:527:11: note: tw is initialized
float tw = std::numeric_limits<float>::max();
^
src\game\client\ui.cpp:529:5: note: tw is overwritten
tw = TextRender()->TextWidth(0, Size, pText, -1, LabelProps.m_MaxWidth, &AlignedSize, &MaxCharacterHeightInLine);
^
src\game\editor\editor.cpp:6051:19: style: Variable 'm_Map.m_Modified' is reassigned a value before the old one has been used. [redundantAssignment]
m_Map.m_Modified = false;
^
src\game\editor\editor.cpp:6046:19: note: m_Map.m_Modified is assigned
m_Map.m_Modified = false;
^
src\game\editor\editor.cpp:6051:19: note: m_Map.m_Modified is overwritten
m_Map.m_Modified = false;
^
src\game\client\prediction\entities\character.cpp:1148:36: style: Variable 'm_LatestInput' is reassigned a value before the old one has been used. [redundantAssignment]
m_LatestPrevInput = m_LatestInput = m_PrevInput = m_SavedInput = m_Input;
^
src\game\client\prediction\entities\character.cpp:1134:16: note: m_LatestInput is assigned
m_LatestInput = m_LatestPrevInput = m_PrevInput = m_Input = m_SavedInput;
^
src\game\client\prediction\entities\character.cpp:1148:36: note: m_LatestInput is overwritten
m_LatestPrevInput = m_LatestInput = m_PrevInput = m_SavedInput = m_Input;
^
src\game\client\prediction\entities\character.cpp:1148:20: style: Variable 'm_LatestPrevInput' is reassigned a value before the old one has been used. [redundantAssignment]
m_LatestPrevInput = m_LatestInput = m_PrevInput = m_SavedInput = m_Input;
^
src\game\client\prediction\entities\character.cpp:1134:36: note: m_LatestPrevInput is assigned
m_LatestInput = m_LatestPrevInput = m_PrevInput = m_Input = m_SavedInput;
^
src\game\client\prediction\entities\character.cpp:1148:20: note: m_LatestPrevInput is overwritten
m_LatestPrevInput = m_LatestInput = m_PrevInput = m_SavedInput = m_Input;
^
src\game\client\prediction\entities\character.cpp:1148:50: style: Variable 'm_PrevInput' is reassigned a value before the old one has been used. [redundantAssignment]
m_LatestPrevInput = m_LatestInput = m_PrevInput = m_SavedInput = m_Input;
^
src\game\client\prediction\entities\character.cpp:1134:50: note: m_PrevInput is assigned
m_LatestInput = m_LatestPrevInput = m_PrevInput = m_Input = m_SavedInput;
^
src\game\client\prediction\entities\character.cpp:1148:50: note: m_PrevInput is overwritten
m_LatestPrevInput = m_LatestInput = m_PrevInput = m_SavedInput = m_Input;
^
```
I think at the point where you use (CEntity **) apPlayersInRange the
compiler says this is a totally different value than apPlayersInRange
since they have a different type. And then it reorders the inlined
FindEntities code to be run afterwards, thus leading to undefined
behavior and crashes.
5545: Format name accordingly r=heinrich5991 a=Chairn
I think i got almost all the misstyped name. I did let some because they made sense to me. I think, only generated code remains to be formatted (and src/base and websockets, but those seems to have an exception).
## Checklist
- [x] Tested the change ingame
- [ ] Provided screenshots if it is a visual change
- [ ] Tested in combination with possibly related configuration options
- [ ] Written a unit test if it works standalone, system.c especially
- [ ] Considered possible null pointers and out of bounds array indexing
- [x] Changed no physics that affect existing maps
- [x] Tested the change with [ASan+UBSan or valgrind's memcheck](https://github.com/ddnet/ddnet/#using-addresssanitizer--undefinedbehavioursanitizer-or-valgrinds-memcheck) (optional)
Co-authored-by: Chairn <chairn.nq@hotmail.fr>
Fix pointer and pointer array variable naming
Huge renaming to match our rules
Used regex: (?!(return|delete)\b)\b\w+ (m_|ms_|g_|gs_|s_)[^a]\w+\[
(?!(return|delete)\b)\b\w+ (?!(m_|ms_|g_|gs_|s_))[^a]\w+\[
Further format static variables
Format almost all pointer names accordingly
Used regex: (?!(return)\b)\b\w+
\*(?!(m_p|p|s_p|m_ap|s_ap|g_p|g_ap|ap|gs_ap|ms_ap|gs_p|ms_p))\w+\b[^:\(p]
clang-format
Fix CI fail
Fix misnamed non pointer as pointer and non array as array
Used regex: (?!(return|delete)\b)\b\w+ (m_|ms_|g_|gs_|s_)p\w+\b
(?!return\b)\b\w+ (ms_|m_|g_|gs_|s_)a\w+\b[^\[]
clang-format
Revert to SCREAMING_SNAKE_CASE and reinstate dead code
Entities have a pointer to their parent entity. If the parent entity is freed first, then freeing the child will cause access to the already freed parent.
This is fixed by adding a child pointer and clearing the child and parent pointers when either child or parent is freed.
5265: Cleanup prediction entity handling a little r=def- a=trml
I looked over the remaining code for creating/removing entities in the prediction, and only ended up making some smaller changes:
- More consistent use of InsertEntity/RemoveEntity/Destroy
- Fixed one instance in gameclient.cpp where an entity was removed but not deleted (could potentially have been a memory leak)
- Removed some old code for retaining information about the characters after they left the snapshot (the client should only rely on the snapshot for prediction of players)
## Checklist
- [x] Tested the change ingame
- [ ] Provided screenshots if it is a visual change
- [ ] Tested in combination with possibly related configuration options
- [ ] Written a unit test if it works standalone, system.c especially
- [x] Considered possible null pointers and out of bounds array indexing
- [x] Changed no physics that affect existing maps
- [x] Tested the change with [ASan+UBSan or valgrind's memcheck](https://github.com/ddnet/ddnet/#using-addresssanitizer--undefinedbehavioursanitizer-or-valgrinds-memcheck) (optional)
Co-authored-by: trml <trml@users.noreply.github.com>
ChillerDragon
