Exception class EInvalidOp: invalid floating point operation (x-posted w/ borland.cppbuilder.cpp)

jawilson

Hello,

I am working on a project in Borland Developer Studio 2006, and am
running into an error I
don't understand. Here is the relevant code:

//---------------------------------------------------
double splitLoc = 0, fs = 512;
double timeRange[3];
int tArr[3];

// these values come from a file, and just happen to be in the one I am
using now
timeRange[0] = -1.5;
tArr[0] = 0;
tArr[2] = 0;

// This is where the error occurs
splitLoc += timeRange[0] * fs; //this is fine
splitLoc += (double)(tArr[2] - tArr[0]);
//----------------------------------------------------

This last line always throws the exception:
First chance exception at $7C81EB33. Exception class EInvalidOp with
message 'Invalid floating point operation'. Process test.exe (3040)

The program compiles fine, so what else could be causing this?
Thanks!
Adam

Feb 19 '06 #1

Daniel T.

In article <11**********************@o13g2000cwo.googlegroups .com>,
"jawilson" <ja******@cae.wisc.edu> wrote:

Hello,

I am working on a project in Borland Developer Studio 2006, and am
running into an error I
don't understand. Here is the relevant code:

//---------------------------------------------------
double splitLoc = 0, fs = 512;
double timeRange[3];
int tArr[3];

// these values come from a file, and just happen to be in the one I am
using now
timeRange[0] = -1.5;
tArr[0] = 0;
tArr[2] = 0;

// This is where the error occurs
splitLoc += timeRange[0] * fs; //this is fine
splitLoc += (double)(tArr[2] - tArr[0]);
//----------------------------------------------------

This last line always throws the exception:
First chance exception at $7C81EB33. Exception class EInvalidOp with
message 'Invalid floating point operation'. Process test.exe (3040)

The program compiles fine, so what else could be causing this?
Thanks!
Adam

I wrapped your code in main and it works fine... If that last line is
throwing an exception, it's being cause by something other than what you
posted. Chances are, some code is going past an array boundary.

--
Magic depends on tradition and belief. It does not welcome observation,
nor does it profit by experiment. On the other hand, science is based
on experience; it is open to correction by observation and experiment.

Feb 19 '06 #2

jawilson

When I opened the project in C++Builder 6 instead of the new version
(BDS 2006), it ran fine. Nothing in the code changed, and I'm pretty
certain that the code is not going past an array boundary. This seems
to be a borland config issue, and not a C++ issue now, but I'm still
hoping someone might have an answer.
Adam

Feb 19 '06 #3