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Date/Time: Fri, 29 Mar 2024 06:36:43 +0000



Compile output error question

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[2013-05-06 13:31:02]
User22396 - Posts: 191
I am trying to learn how to modify some existing studies but i keep getting some build errors...

1) I create a new cpp file called 'TestOHLC.cpp' via the analysis> New/Open Custom Studies File
2) Copy the existing 'DailyOHLC' code from the studies7.cpp (line7398-7613)
3) #include "sierrachart.h" along with SCDLLName("TestOHLC")
4) save and close
5) Analysis> Build Custom Studies DLL
6) Build Output:

-- Starting build of Custom Studies Source File: TestOHLC.cpp. -- 16:00:10
"C:\SierraChart\CPPCompiler\bin\g++.exe" "C:\SierraChartTESTING\ACS_Source\TestOHLC.cpp" -march=i686 -mtune=i686 -O2 -shared -static -static-libgcc -static-libstdc++ -s -fno-rtti -fno-exceptions -o "C:\SierraChartTESTING\Data\TestOHLC.dll"

C:\SierraChartTESTING\ACS_Source\TestOHLC.cpp: In function 'void scsf_DailyOHLC(SCStudyInterfaceRef)':
C:\SierraChartTESTING\ACS_Source\TestOHLC.cpp:161:5: error: 'CalculateDailyOHLC' was not declared in this scope
-- End of Build -- 16:00:11

I have succesfully built some easy custom studies by modifying some examples but here i am not modifying anything? What am i doing wrong?

Am i missing some references which i have seen in some more advanced code?
#include <iterator>
#include <windows.h>
#include "scstudyfunctions.h"

I was able to create and modify a test study by copying the 'round tick' study from studies6.cpp (lines 3053-3078) and it complied just fine...

so not sure where i am going wrong on these more complex studies?

thanks
b


[2013-05-06 13:32:36]
User22396 - Posts: 191
if i add "#include "scstudyfunctions.h" to the header i get this error instead...

C:\Windows\ccDifEK5.o:TestOHLC.cpp:(.text+0x1d19): undefined reference to `CalculateDailyOHLC(s_sc&, int, int, int, int, int, int, SCGraphData&, SCDateTimeArray&, int, float&, float&, float&, float&)'
collect2.exe: error: ld returned 1 exit status
-- End of Build -- 07:31:50

what am i missing?

thanks
b
[2013-05-07 00:55:03]
Sierra Chart Engineering - Posts: 104368
You need to open the SCStudyFunctions.cpp file and take a copy of the CalculateDailyOHLC function and put it into your own source code cpp file and put it above your study function.
Sierra Chart Support - Engineering Level

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[2013-05-07 02:58:16]
User22396 - Posts: 191
thanks for the reply...will give it a go

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