[gdal-dev] Crash when using custom error handler

[Thomas Sevaldrud]

Hi,

I am having a very strange issue when trying to use a custom error handler
in GDAL on windows.

The following simple example illustrates it:

#include <cpl_error.h>

#include <iostream>


using namespace std;


static void logGDALError(CPLErr eErrClass, int err_no, const char *msg)

{

    cerr << "GDAL Error: " << msg << endl;

}


int main(int argc, char *argv[])

{

    cerr << "Begin" << endl;


    CPLSetErrorHandler((CPLErrorHandler)logGDALError);

    CPLError(CE_Warning, 0, "Installed error handler");


    cerr << "End" << endl;

}


This code crashes immediately after writing out the message "Installed
error handler".

Unhandled exception at 0x7787ea3b in GDALTest.exe: 0xC0000005: Access
violation writing location 0x00000009.

Both GDAL and the test program are compiled with VS2010 in 32-bit mode. I
have also tried with VS2012 with the same result. I've tried with GDAL
1.9.2 and 1.10.1.

I used the supplied makefiles to compile GDAL and everything else seems to
work OK. I.e I use the GDAL API successfully to read and write files.

Any ideas?

- Thomas
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