error: ISO C++ forbids comparison between pointer and integer [-fpermissive] | Together C & C++ | Page 1

humble shale Dec 9, 2023, 3:14 PM

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hello i got this error and i dont know what to do. I use CodeBlocks IDE(bcs i need it for linux)

there is a code:
void ReplicaManager3::AutoCreateConnectionList( DataStructures::List<RakNetGUID> &participantListIn, DataStructures::List<Connection_RM3*> &participantListOut, WorldId worldId) { for (unsigned int index=0; index < participantListIn.Size(); index++) { if (GetConnectionByGUID(participantListIn[index], worldId)==false) { Connection_RM3 *connection = AllocConnection(rakPeerInterface->GetSystemAddressFromGuid(participantListIn[index]), participantListIn[index]); if (connection) { PushConnection(connection); participantListOut.Push(connection, _FILE_AND_LINE_); } } } }

and the error is there: if (GetConnectionByGUID(participantListIn[index], worldId)==false)

eager flameBOT Dec 9, 2023, 3:14 PM

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median summit Dec 9, 2023, 3:19 PM

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Could you paste the full error message?

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Also

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!code

eager flameBOT Dec 9, 2023, 3:19 PM

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How to Format Code on Discord

Markup

```cpp
int main() {}
```

Result

int main() {}

median summit Dec 9, 2023, 3:21 PM

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What type does getconnectionbyid return?

humble shale Dec 9, 2023, 3:33 PM

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@median summit yeah no problem

C:\Users\BLAH\BLAH\sdks\RakNet\ReplicaManager3.cpp||In member function 'void RakNet::ReplicaManager3::AutoCreateConnectionList(DataStructures::List<RakNet::RakNetGUID>&, DataStructures::List<RakNet::Connection_RM3*>&, RakNet::WorldId)':|
C:\Users\BLAH\BLAH\sdks\RakNet\ReplicaManager3.cpp|131|error: ISO C++ forbids comparison between pointer and integer [-fpermissive]|
||=== Build finished: 1 error(s), 0 warning(s) (0 minute(s), 2 second(s)) ===|```

humble shale Dec 9, 2023, 3:43 PM

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median summit What type does getconnectionbyid return?

i dont know its RakNet i dont do that but i have it in code(in vs for windows its normal but in code blocks for linux i have this error and i dont know why)

cedar junco Dec 9, 2023, 4:35 PM

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humble shale i dont know its RakNet i dont do that but i have it in code(in vs for windows it...

It doesn't work properly in Windows either; it's just that on Windows your compiler didn't check for this bug.
You are comparing what GetConnectionByGUID() returns, which is a pointer according to the compiler, to false, which is the same as the integer 0.

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You'll want to find the documentation of the function/look at its source code to figure out what to change that false to. I suspect it returns nullptr on error.

humble shale Dec 9, 2023, 4:37 PM

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Aha soo i need to find some documentation

humble shale Dec 9, 2023, 8:38 PM

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@cedar junco in RakNet source i found this /// \brief Track a new Connection_RM3 instance /// \details If \a autoCreate is false for SetAutoManageConnections(), then you need this function to add new instances of Connection_RM3 yourself.<BR> /// You don't need to track this pointer yourself, you can get it with GetConnectionAtIndex(), GetConnectionByGUID(), or GetConnectionBySystemAddress().<BR> /// \param[in] newConnection The new connection instance to track. /// \param[in] worldId Used for multiple worlds. World 0 is created automatically by default. See AddWorld() bool PushConnection(RakNet::Connection_RM3 *newConnection, WorldId worldId=0);

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and

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{
    if (newConnection==0)
        return false;
    if (GetConnectionByGUID(newConnection->GetRakNetGUID(), worldId))
        return false;
    // Was this intended?
    RakAssert(newConnection->GetRakNetGUID()!=rakPeerInterface->GetMyGUID());
    
    RakAssert(worldsArray[worldId]!=0 && "World not in use");
    RM3World *world = worldsArray[worldId];

    unsigned int index = world->connectionList.GetIndexOf(newConnection);
    if (index==(unsigned int)-1)
    {
        world->connectionList.Push(newConnection,_FILE_AND_LINE_);

        // Send message to validate the connection
        newConnection->SendValidation(rakPeerInterface, worldId);

        Connection_RM3::ConstructionMode constructionMode = newConnection->QueryConstructionMode();
        if (constructionMode==Connection_RM3::QUERY_REPLICA_FOR_CONSTRUCTION || constructionMode==Connection_RM3::QUERY_REPLICA_FOR_CONSTRUCTION_AND_DESTRUCTION)
        {
            unsigned int pushIdx;
            for (pushIdx=0; pushIdx < world->userReplicaList.Size(); pushIdx++)
                newConnection->OnLocalReference(world->userReplicaList[pushIdx], this);
        }
    }
    return true;
}```

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{
    RakAssert(worldsArray[worldId]!=0 && "World not in use");
    RM3World *world = worldsArray[worldId];

    unsigned int index;
    for (index=0; index < world->connectionList.Size(); index++)
    {
        if (world->connectionList[index]->GetRakNetGUID()==guid)
        {
            return world->connectionList[index];
        }
    }
    return 0;
}```

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        {
            Connection_RM3 *connection = GetConnectionByGUID(packet->guid, incomingWorldId);
            if (connection && connection->isValidated==false)
            {
                // This connection is now confirmed bidirectional
                connection->isValidated=true;
                // Reply back on validation
                connection->SendValidation(rakPeerInterface,incomingWorldId);
            }
        }
    }```

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    if (connection==0)
    {
        // Almost certainly a bug
        RakAssert("Got OnConstruction but no connection yet" && 0);
        return RR_CONTINUE_PROCESSING;
    } ```

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    if (connection==0)
        return RR_CONTINUE_PROCESSING;
    if (connection->groupConstructionAndSerialize)
    {
        connection->downloadGroup.Push(packet, __FILE__, __LINE__);
        return RR_STOP_PROCESSING;
    }```

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    if (connection==0)
        return RR_CONTINUE_PROCESSING;
    if (connection->QueryGroupDownloadMessages() &&
        // ID_DOWNLOAD_STARTED will be processed twice, being processed the second time once ID_DOWNLOAD_COMPLETE arrives.
        // However, the second time groupConstructionAndSerialize will be set to true so it won't be processed a third time
        connection->groupConstructionAndSerialize==false
        )```

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    if (connection==0)
        return RR_CONTINUE_PROCESSING;```

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is there some code we need ?

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thats all i found

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@cedar junco

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and this Connection_RM3* GetConnectionByGUID(RakNetGUID guid, WorldId worldId=0) const;

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thats all i think

cedar junco Dec 9, 2023, 9:06 PM

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humble shale hello i got this error and i dont know what to do. I use CodeBlocks IDE(bcs i ne...

Did you write this original code you showed? If so, think about what your original goal was with the ==false line

humble shale Dec 9, 2023, 9:08 PM

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cedar junco Did you write this original code you showed? If so, think about what your origin...

i dont understant what you mean sorry can you say it more detailed or how to say it

cedar junco Dec 9, 2023, 9:09 PM

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humble shale hello i got this error and i dont know what to do. I use CodeBlocks IDE(bcs i ne...

Did you write this code?

humble shale Dec 9, 2023, 9:09 PM

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no

cedar junco Dec 9, 2023, 9:09 PM

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Who did

humble shale Dec 9, 2023, 9:09 PM

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its SDK

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RakNet

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https://en.wikipedia.org/wiki/RakNet

RakNet

RakNet is networking middleware developed by Oculus VR, Inc. for use in the video game industry. RakNet was originally authored by Jenkins Software LLC.

cedar junco Dec 9, 2023, 9:10 PM

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Why are you trying to compile it? And how are you compiling it?

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Did you put a #include "raknet.h" or something in your own project?

humble shale Dec 9, 2023, 9:12 PM

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hey man its SDK for my code i need it bcs i create something like SAMP(samp using RakNet too) but for Czech game Mafia the city of Lost Heaven

cedar junco Dec 9, 2023, 9:12 PM

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So how are you using it in your code? With something like #include "raknet.h"?

humble shale Dec 9, 2023, 9:23 PM

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i dont know how to explain it

cedar junco Dec 9, 2023, 9:23 PM

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Well try your best

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What code editor are you using, are you on Windows, do you use a Makefile or cmake?

humble shale Dec 9, 2023, 9:25 PM

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RakNet is folder in my SDKs with so many files so somewhere is just simply ../sdks/Raknet/ thats all

humble shale Dec 9, 2023, 9:26 PM

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cedar junco What code editor are you using, are you on Windows, do you use a Makefile or cma...

just .sln and makefile(this i dont use now i use just .sln)

humble shale Dec 9, 2023, 9:27 PM

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cedar junco What code editor are you using, are you on Windows, do you use a Makefile or cma...

VS22

cedar junco Dec 9, 2023, 9:29 PM

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Right, and are you making use of raknet anywhere yet in your project, or did you just try to add raknet to your program right now?

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Also, is it your own project, or are you trying to compile other people's code?

humble shale Dec 9, 2023, 9:32 PM

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we started doing this project 2 I did only something that I understood but I don't understand networking etc. that's why the other one did it (we are no longer in contact and he left the whole project to me) and that project is based on another open source project and I think this is from that previous project

humble shale Dec 9, 2023, 9:35 PM

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cedar junco Right, and are you making use of raknet anywhere yet in your project, or did you...

RakNet was already here

cedar junco Dec 9, 2023, 9:39 PM

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humble shale we started doing this project 2 I did only something that I understood but I don...

That sucks, sorry about that

cedar junco Dec 9, 2023, 9:41 PM

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humble shale RakNet was already here

Alright, so inside of your game (and not inside of the raknet library header), try to find where you are currently making use of raknet's functions. Do you see a #include "raknet.h" at the top of one of those files?

humble shale Dec 9, 2023, 9:43 PM

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raknet.h not exist

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im trying to find main file for raknet

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there is RakNet.vcproj

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humble shale Dec 9, 2023, 9:46 PM

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humble shale <Add directory="../sdks/RakNet" />

in file Server.cbp

cedar junco Dec 9, 2023, 9:47 PM

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Are you allowed to send a github link to your code here so I can help out?

humble shale Dec 9, 2023, 9:49 PM

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cedar junco Are you allowed to send a github link to your code here so I can help out?

I tried to upload the project to github all day yesterday, but unfortunately it doesn't work

cedar junco Dec 9, 2023, 9:49 PM

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Do you have git working though?

humble shale Dec 9, 2023, 9:49 PM

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maybe we can call and i can share the screen

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yes

cedar junco Dec 9, 2023, 9:49 PM

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Nah, I want to look through the code leisurely

cedar junco Dec 9, 2023, 9:50 PM

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humble shale I tried to upload the project to github all day yesterday, but unfortunately it ...

What do you mean by "it doesn't work"?

humble shale Dec 9, 2023, 9:51 PM

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it just say ERROR uploading

cedar junco Dec 9, 2023, 9:51 PM

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Show that terminal output

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Getting it on github should be your new #1 priority

humble shale Dec 9, 2023, 9:55 PM

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at first i dont know if i want to share my almost 3 years work with someone who i dont know thinkeyes

cedar junco Dec 9, 2023, 9:58 PM

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I mean that should be an easy decision to make right, either you do or you don't?

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I am not going to beg for it or something

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It's fine if you don't, it just makes it harder for others to help

humble shale Dec 9, 2023, 10:00 PM

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i know but as like i say its 6,3 GB code from my 3 years work

cedar junco Dec 9, 2023, 10:02 PM

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How come you are getting this compilation error now?

humble shale Dec 9, 2023, 10:05 PM

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cedar junco How come you are getting this compilation error now?

because only now I started to build a linux server before all the time only windows

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and Visual Studio does not show this problem but Code Blocks does

cedar junco Dec 9, 2023, 10:09 PM

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Okay, so since the compilation error you posted seems to be in the actual raknet library, you can add the compilation flag -fno-permissive to get rid of this error. Ideally you only use this flag when compiling the raknet library and not when compiling your own code.

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Or you can use a #pragma to ignore the warning for that specific line

humble shale Dec 9, 2023, 10:10 PM

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cedar junco Or you can use a #pragma to ignore the warning for that specific line

its error i cant use it i think

cedar junco Dec 9, 2023, 10:13 PM

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humble shale its error i cant use it i think

What?

humble shale Dec 9, 2023, 10:14 PM

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i can not use #pragma bcs its error and its work only for warnings or no ?

cedar junco Dec 9, 2023, 10:14 PM

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Ohh, no it still works because if you suppress the warning it never gets to turn into an error

humble shale Dec 9, 2023, 10:15 PM

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ahaaaaaa

cedar junco Dec 9, 2023, 10:15 PM

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But I recommend just adding -fno-permissive if you want to quickly fix the issue

humble shale Dec 9, 2023, 10:15 PM

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cedar junco But I recommend just adding `-fno-permissive` if you want to quickly fix the iss...

can you tell me where?

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where add this?

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bcs like i said iam using Code Blocks for first

cedar junco Dec 9, 2023, 10:17 PM

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humble shale can you tell me where?

To your compilation flags. Do you have a file called Makefile, or a cmake file?

humble shale Dec 9, 2023, 10:19 PM

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makefile and tesla files

cedar junco Dec 9, 2023, 10:19 PM

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Tesla? Never heard of that before

humble shale Dec 9, 2023, 10:20 PM

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cedar junco Dec 9, 2023, 10:20 PM

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I think you can ignore those files for compilation. Send your Makefile

humble shale Dec 9, 2023, 10:21 PM

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Tesla.cbp is for CodeBlocks

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its like .sln

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i have Makefile now what

cedar junco Dec 9, 2023, 10:32 PM

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Send it by dragging it on top of Discord

humble shale Dec 9, 2023, 10:46 PM

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can you just tell me what i need to paste in code ? please

cedar junco Dec 9, 2023, 10:49 PM

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cedar junco Okay, so since the compilation error you posted seems to be in the actual raknet...

I told you

humble shale Dec 9, 2023, 10:56 PM

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I didn't do anything but I have more errors there

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cedar junco Dec 9, 2023, 10:59 PM

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Did you change anything in this file?

humble shale Dec 9, 2023, 11:00 PM

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no

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its file somewhere in pc

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in program files

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cedar junco Dec 9, 2023, 11:03 PM

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Were you at least able to fix the original raknet error using that flag -fno-permissive?

humble shale Dec 9, 2023, 11:04 PM

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no

cedar junco Dec 9, 2023, 11:05 PM

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humble shale because only now I started to build a linux server before all the time only wind...

So you had it working before on Windows, but now you are using Linux and trying to run your project in it, right? You may want to continue using Windows for the time being if your project uses a ton of Windows-specific stuff

humble shale Dec 9, 2023, 11:06 PM

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cedar junco Were you at least able to fix the original raknet error using that flag `-fno-pe...

but its not work

cedar junco Dec 9, 2023, 11:06 PM

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? What file is that

humble shale Dec 9, 2023, 11:07 PM

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cedar junco So you had it working before on Windows, but now you are using Linux and trying ...

im allready on windows i only need to compile the file for linux with a program that can do it

humble shale Dec 9, 2023, 11:07 PM

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cedar junco ? What file is that

makefile

cedar junco Dec 9, 2023, 11:08 PM

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humble shale im allready on windows i only need to compile the file for linux with a program ...

Why? Is it not easier to just continue development on Windows for you?

humble shale Dec 9, 2023, 11:08 PM

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cedar junco Why? Is it not easier to just continue development on Windows for you?

im on windows

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but

cedar junco Dec 9, 2023, 11:08 PM

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humble shale but its not work

And what now works specifically?

humble shale Dec 9, 2023, 11:09 PM

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i need to compile file for linux bcs the SERVER is will be for public

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the whole project is Multiplayer for single player game like SAMP like i said so i need windows server(i have it) and linux server(i need it for hostings etc)

humble shale Dec 9, 2023, 11:10 PM

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cedar junco And what now works specifically?

sorry not work

cedar junco Dec 9, 2023, 11:11 PM

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humble shale sorry not work

Well that's because the -fno-permissive doesn't belong where you put it

humble shale Dec 9, 2023, 11:11 PM

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cedar junco Well that's because the -fno-permissive doesn't belong where you put it

ok

cedar junco Dec 9, 2023, 11:11 PM

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If you send the makefile I can just straight-up tell you where you should, like I said earlier

humble shale Dec 9, 2023, 11:15 PM

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cedar junco If you send the makefile I can just straight-up tell you where you should, like ...

DM

cedar junco Dec 9, 2023, 11:15 PM

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Sure, send it in a DM if you want

humble shale Dec 10, 2023, 12:17 PM

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@cedar junco so ?

#error: ISO C++ forbids comparison between pointer and integer [-fpermissive]