error C2061: syntax error : identifier

muby

Hi everybody :)

I'm modifying a C++ code in VC++ 2005

my code snippet

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 void BandwidthAllocationScheduler::insert(

    Message* msg,

    BOOL* QueueIsFull,

    const int priority,

    const void *infoField,

    const clocktype currentTime,

    TosType* tos

    )
 
{

    QueueData* qData = NULL;

    int queueIndex;

    unsigned int sfid;        //service flow id
 
    int maxSustainedRate;       // maximum sustained traffic, bps

    int minReservedRate;        // minimum reserved traffic rate, bps

    int numFlows;                //number of flows

    int bwAll;

    int bwGranted;                // number of bytes

    int tempBwReq;                //number of bytes

    int sflow;

    int i;

    int DOT16_UPLINK_SERVICE_FLOW;

    int DOT16_DOWNLINK_SERVICE_FLOW;
 
        for (i = 0, i < numFlows; i++)

    {

        if sFlow->sfDirection == DOT16_UPLINK_SERVICE_FLOW

            sFlow* MacDot16SsAddServiceFlow;
 
        if DsFlow->sfDirection == DOT16_DOWNLINK_SERVICE_FLOW

                sFlow* MacDot16BsAddServiceFlow;

    }

        bwAll = BwGranted;

        if bwAll < minReservedRate                                        MacDot16SsScheduleBandwidthRequest;                

if bwAll > minReservedRate

                                                            //tag/mark extra slots

tempBwReq = dot16Ss->outScheduler[

bwRec->serviceFlowIndex - 1]

->bytesInQueue(bwRec->queuePriority); // tempBw to Permanent

sFlow->bwRequested = tempBwReq;       //update Bwreq
 
}

but i get the following error when i compile it

Quote:

..\libraries\developer\src\sch_bandwidthallocation .cpp(113) : error C2143: syntax error : missing ';' before ')'
..\libraries\developer\src\sch_bandwidthallocation .cpp(115) : error C2061: syntax error : identifier 'sFlow'
..\libraries\developer\src\sch_bandwidthallocation .cpp(118) : error C2061: syntax error : identifier 'DsFlow'
..\libraries\developer\src\sch_bandwidthallocation .cpp(121) : error C2065: 'BwGranted' : undeclared identifier
..\libraries\developer\src\sch_bandwidthallocation .cpp(122) : error C2061: syntax error : identifier 'bwAll'
..\libraries\developer\src\sch_bandwidthallocation .cpp(126) : error C2061: syntax error : identifier 'bwAll'
..\libraries\developer\src\sch_bandwidthallocation .cpp(131) : error C2065: 'sFlow' : undeclared identifier
..\libraries\developer\src\sch_bandwidthallocation .cpp(131) : error C2227: left of '->bwRequested' must point to class/struct/union/generic type
type is ''unknown-type''
..\libraries\developer\src\sch_bandwidthallocation .cpp(604) : error C2761: '{ctor}' : member function redeclaration not allowed
..\libraries\developer\src\sch_bandwidthallocation .cpp(605) : error C2447: '{' : missing function header (old-style formal list?)
NMAKE : fatal error U1077: '"C:\Program Files\Microsoft Visual Studio 8\VC\BIN\cl.EXE"' : return code '0x2'
Stop.
NMAKE : fatal error U1077: '"C:\Program Files\Microsoft Visual Studio 8\VC\BIN\nmake.EXE"' : return code '0x2'
Stop.

can someone tell me, where did i go wrong? thx :)

Banfa

Check the numbers given by your compiler, read the error messages.

For instance I think line 113 of your code is line 26 of the code you posted. Look at that line, look at the portion of it before the ), can you see a place where you should have a ; but don't.

The next error, line 115 (28 of the posted code) look at that line, is that the correct syntax for an if statement?

muby

thanks Banfa for your kind reply, silly me i didnt notice that error

after doing this

Quote:

for (i = 0; i < numFlows; i++)
{
if (sFlow->sfDirection == DOT16_UPLINK_SERVICE_FLOW)
{sFlow* MacDot16SsAddServiceFlow}

if (DsFlow->sfDirection == DOT16_DOWNLINK_SERVICE_FLOW)
{sFlow* MacDot16BsAddServiceFlow}
}

i still get errors as follow

Quote:

sch_bandwidthallocation.cpp
..\libraries\developer\src\sch_bandwidthallocation .cpp(115) : error C2065: 'sFlow' : undeclared identifier
..\libraries\developer\src\sch_bandwidthallocation .cpp(115) : error C2227: left of '->sfDirection' must point to class/struct/union/generic type
type is ''unknown-type''
..\libraries\developer\src\sch_bandwidthallocation .cpp(116) : error C2065: 'MacDot16SsAddServiceFlow' : undeclared identifier
..\libraries\developer\src\sch_bandwidthallocation .cpp(116) : error C2143: syntax error : missing ';' before '}'
..\libraries\developer\src\sch_bandwidthallocation .cpp(118) : error C2065: 'DsFlow' : undeclared identifier
..\libraries\developer\src\sch_bandwidthallocation .cpp(118) : error C2227: left of '->sfDirection' must point to class/struct/union/generic type
type is ''unknown-type''

what am i missing here?

r035198x

Format your code properly so you can catch easy braces errors.
Then go through the errors one by one.
e.g Undefined symbol 'sFlow' is certainly self explanatory.
Also in C,++ each statement must be terminated by a semi colon.
If you are still missing those things then reading a tutorial might not be a bad thing at this stage.

manontheedge

The code you have isn't tricky to debug. So, my advice is that you learn to use the debugger. When errors come up, go through them one at a time ... always start with the first one because it could fix ALL of the errors, or at least some of them. I'm sensing you don't have a lot of experience either writing or debugging code, so I would recommend starting with smaller bits of code, very small, just to get familiar with the debugger.

muby

Thanks for your advices, i would start learning from debugging tutorials.

I just have one more question, which i think will help me a lot.

I need to access variables that are declared inside a header file using (typedef enum) & (typedef struct) in multiple .cpp files.

im doing the following, is it wrong?

in header.file

Quote:

typedef struct
{
int sFlow
int bwGranted

}MacDot16ServiceFlowDirection;
extern MacDot16ServiceFlowDirection sFlow;
extern MacDot16ServiceFlowDirection bwGranted;

and then include the header file in every .cpp file use that variable

is it done in different way for (typedef enum) & (typedef struct)?

Thanks again :)

Banfa

No it structs and enums are typedef'd in the same way. However typedef has very little use in C++ and certainly no real use with structures, enums or classes because if declared correctly the name is automatically defined as a type.

So your code could be written without the typedef like this

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struct MacDot16ServiceFlowDirection

{

   int sFlow

   int bwGranted

 };
 
extern MacDot16ServiceFlowDirection sFlow;

extern MacDot16ServiceFlowDirection bwGranted;

That is how I would expect to see it in C++.

The way you have written the code is what you would do if you were writing in C.

error C2061: syntax error : identifier

re: error C2061: syntax error : identifier

re: error C2061: syntax error : identifier

re: error C2061: syntax error : identifier

re: error C2061: syntax error : identifier

re: error C2061: syntax error : identifier

re: error C2061: syntax error : identifier

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