floating point error handler - how do I get a workable stackframe?

[sysop HAL9K com]

Dear folks, We have a perfectly good FP error handler on VC7.1, VC8 and so on. However, none of the stack is visible if we set a breakpoint inside the FP handler. So basically we have no idea where the offending code is that is causing the FP error to fire. Any ideas on how to get a usable stack inside (or outside) the debugger? An example of the stack:

> MyProgram.exe!IeeeFPHandler(_FPIEEE_RECORD * pieee=0x0012ec10)
Line 168 C++
msvcr71.dll!7c3744fa()
ntdll.dll!7c90e21f()
kernel32.dll!7c80b9bd()
kernel32.dll!7c80b9e6()
msvcr71.dll!7c34d518()
MyProgram.exe!FPEGuardedExecution(int (void *)* func=0x0012fe20,
void * d=0x0012edd4) Line 214 + 0x1d C++
ntdll.dll!7c9037bf()
ntdll.dll!7c90378b()
ntdll.dll!7c937860()
ntdll.dll!7c91b686()

and our handler :wtf:

#ifdef _WIN32

#include #include #include static int fpWarningCount = 0;
static int
IeeeFPHandler( _FPIEEE_RECORD *pieee )
{
string s = "Unhandled floating point error";

if (pieee->Cause.InvalidOperation) {
s = "Invalid floating point operation";
}

if (pieee->Cause.ZeroDivide) {
s = "Floating point zero divide";
}

if (pieee->Cause.Overflow) {
s = "Floating point overflow";
}

if (pieee->Cause.Inexact) {
s = "Floating point Inexact";
}

if (fpWarningCount == 8)
s += "\nSuppressing further floating point errors";

if (fpWarningCount <= 8)
MessageDlg::critical(I18n(s));

fpWarningCount++;
return EXCEPTION_CONTINUE_EXECUTION;
}