Re: Syntax Error and I can't find it

Hi Phillippe, no its not a missing declaration or definition of Kalib1 - I dropped the line by accident and when I wanted to send out a correction you had already beaten me to it.

However, wrapping the whole thing in a void fixed the error. Great, thank you CINT for such meaningful error messsages.

Nonetheless wrapping it in a void had some other negative sideeffects: Whereas before a canvas poppep up upon creating it, now nothing happens,

not even on Kalib1.Draw( ). THe corrected source code (no lines dropped)   here:

#include "/home/manday/Programs/lib/raupach/praktlib.h"

void auswertung( ) {

gROOT->SetStyle("Plain");
string baseDir = "/home/manday/Documents/University/Physik Praktikum/Akustik/Cassy/";
gStyle->SetOptFit();

TCanvas gCWegKalib1( "WegKalibration","Kalibration Wegaufnehmer" );

// Linearer Fit Wegaufnehmer
gCWegKalib1.SetGrid();
gCWegKalib1.SetFillColor( kWhite );         

PraktLib *gDatKalib1 = new PraktLib( baseDir + "Kalibrierung.lab","cassy" ); const int gDatKalibLen = gDatKalib1->NumRows();

Double_t* Kalib1R = new Double_t[ gDatKalibLen ]; Double_t* Kalib1S = new Double_t[ gDatKalibLen ]; for( int i = 0; i<gDatKalibLen; i++ ) {

	Kalib1R[ i ]= gDatKalib1->ReadData( i,3 );
	Kalib1S[ i ]= gDatKalib1->ReadData( i,4 );

TGraphErrors Kalib1( gDatKalibLen,Kalib1R,Kalib1S ); // Kalib1.Fit( "pol1","W" );
Kalib1.Draw( );

}

Philippe Canal wrote:
> Hi Cedric,
>
> To get better error message you can ask the compiler by replacing:
>
> root [0] #include "auswertung.cpp"
>
> with
>
> root [0] #include "auswertung.cpp+"
>
> However you would need to turn this file in a proper C++ file (as oppose
> to using the CINT shortcuts).
>
> Nonetheless, it seems that the problem is with the line:
>
> Kalib1.Draw( );
>
> where Kalib1 is probably not properly defined.
>
> Cheers,
> Philippe.
>
> PS. The recommend way to use you script is:
>
> root [] .x auswertung.cpp
>
> and the best way to write it is:
>
> #include "/home/manday/Programs/lib/raupach/praktlib.h"
>
> void auswertung() {
> gROOT->SetStyle("Plain");
> string baseDir = "/home/manday/Documents/University/Physik
> Praktikum/Akustik/Cassy/";
> gStyle->SetOptFit();
>
> TCanvas gCWegKalib1( "WegKalibration","Kalibration Wegaufnehmer" );
>
> // Linearer Fit Wegaufnehmer
> gCWegKalib1.SetGrid();
> gCWegKalib1.SetFillColor( kWhite );
> PraktLib *gDatKalib1 = new PraktLib( baseDir +
> "Kalibrierung.lab","cassy" );
> const int gDatKalibLen = gDatKalib1->NumRows();
>
> Double_t* Kalib1R = new Double_t[ gDatKalibLen ];
> Double_t* Kalib1S = new Double_t[ gDatKalibLen ];
> for( int i = 0; i<gDatKalibLen; i++ ) {
> Kalib1R[ i ]= gDatKalib1->ReadData( i,3 );
> Kalib1S[ i ]= gDatKalib1->ReadData( i,4 );
> }
>
> Kalib1.Draw( );
> }
>
> On 3/30/10 11:07 AM, Cedric Sodhi wrote:

>> I'm sorry as I get the feeling that I seem to bombard the mailing list 
>> with questions which appear trvial at best but CINT is driving me 
>> in-sane! I don't consider myself a bad programmer, actually I think 
>> I'm quite good at what I do although my last substancial experience 
>> with CPP lies a few years behind but that CINThing is getting the last 
>> iota of patience out of me. I got a deadline for tomorrow and CINT 
>> stops me at the simplest tasks! Nothing seems to work!
>>
>> Now, if anyone understand the following error message and can make the 
>> link to the (few lines long) source code, please let me know, I really 
>> need the help right now. The #included file in the #included file can 
>> be found here, but shouldnt be the reason for this (it better be not)
>>
>> >> If you are interested in trying this out you can find them packed 
>> here:
>> >> http://accms04.physik.rwth-aachen.de/~praktapp/ 
>> <http://accms04.physik.rwth-aachen.de/%7Epraktapp/> -> "Neue ROOT 
>> Routinen"
>> >> Direct link for download:
>> >> http://accms04.physik.rwth-aachen.de/~praktapp/root_new/ 
>> <http://accms04.physik.rwth-aachen.de/%7Epraktapp/root_new/>
>> >> Author(s) as mentioned on page.
>>
>> root [0] #include "auswertung.cpp"                        Converting 
>> file to csv-file...
>> Starting conversion...
>> Opening output file: /home/manday/Documents/University/Physik 
>> Praktikum/Akustik/Cassy/Kalibrierung.lab.out
>> Opening input file...
>> Checking file type by argument...
>> File type: CASSYLab file...
>> Looping over file...
>> Found 4 y columns...
>> Done!
>> Reading file /home/manday/Documents/University/Physik 
>> Praktikum/Akustik/Cassy/Kalibrierung.lab.out...
>> Error: Missing one of ',)' expected at or after line 18.
>> Error: Unexpected end of file (G__fgetstream_template():2) 
>> auswertung.cpp:26:
>> Error: Missing one of ',;{(' expected at or after line 26.
>> Error: Unexpected end of file (G__fgetstream_template():2) 
>> auswertung.cpp:26:
>> Error: Missing one of '{' expected at or after line 26.
>> Error: Unexpected end of file (G__fignorestream():3) auswertung.cpp:26:
>> *** Interpreter error recovered ***
>> root [1]
>> ______________________
>>
>> #include "/home/manday/Programs/lib/raupach/praktlib.h"
>>
>> gROOT->SetStyle("Plain");
>> string baseDir = "/home/manday/Documents/University/Physik 
>> Praktikum/Akustik/Cassy/";
>> gStyle->SetOptFit();
>>
>> TCanvas gCWegKalib1( "WegKalibration","Kalibration Wegaufnehmer" );
>>
>> // Linearer Fit Wegaufnehmer
>> gCWegKalib1.SetGrid();
>> gCWegKalib1.SetFillColor( kWhite );
>>   PraktLib *gDatKalib1 = new PraktLib( baseDir + 
>> "Kalibrierung.lab","cassy" );
>> const int gDatKalibLen = gDatKalib1->NumRows();
>>
>> Double_t* Kalib1R = new Double_t[ gDatKalibLen ];
>> Double_t* Kalib1S = new Double_t[ gDatKalibLen ];
>> for( int i = 0; i<gDatKalibLen; i++ ) {
>>    Kalib1R[ i ]= gDatKalib1->ReadData( i,3 );
>>    Kalib1S[ i ]= gDatKalib1->ReadData( i,4 );
>> }
>>
>> Kalib1.Draw( );
>>