Logging to a specific file

[Horst Balthasar]

I have tried to implement the logging in a specific file with the following code:

// pattern for the log messages
const char* pattern = "%D{%Y-%m-%d %H:%M:%S.%q} %5p: %m%n";

/* specify log pattern */
OFunique_ptr<dcmtk::log4cplus::Layout> layout(new dcmtk::log4cplus::PatternLayout(pattern));
dcmtk::log4cplus::SharedAppenderPtr logFile(new dcmtk::log4cplus::FileAppender("PrintClient.log"));
dcmtk::log4cplus::Logger logger = dcmtk::log4cplus::Logger::getRoot();

logFile->setLayout(layout);

logger.removeAllAppenders();
logger.addAppender(logFile);
logger.setLogLevel(dcmtk::log4cplus::TRACE_LOG_LEVEL);

The following errors occurred during compilation:

error C3927: "->": Ein nachstehender Rückgabetyp ist nach einem Nichtfunktionsdeklarator nicht zulässig.
error C3613: Rückgabetyp nach '"->" (Annahme: "int") fehlt
error C4430: Fehlender Typspezifizierer - int wird angenommen. Hinweis: "default-int" wird von C++ nicht unterstützt.
error C2371: "logFile": Neudefinition; unterschiedliche Basistypen

I tried other variable names or with OFmove, but I still get the same errors when compiling.

The error refers to the marked line.

I am using dcmtk 3.6.7 in Visual Studio 2022.

Best regards

Horst Balthasar

[J. Riesmeier]

Did you simply forget to include the header file "dcmtk/oflog/fileap.h" for the FileAppender class? And, as described in the DCMTK Howto, you also need to use OFmove() for setting the layout.

[Horst Balthasar]

Dear Mr Riesmeier,

the header file was included and i use the OFmove function. But I still get the same errors when compiling.


Best regards
Horst Balthasar

[Marco Eichelberg]

Perhaps a problem caused by the preprocessor? Is there possibly a macro named "logFile" or "setLayout" defined somewhere that causes the problem here? You might want to look at the output of the preprocessor to check this.