try ... catch problem

Dear all,

I have the following C++ code that are called by Fortran program:

            try

            {

                 mycalculation();

           }

           catch(...)

           {

              return -1;

          }

          return 0;

However, it seems that the code can't catch the crash at 'mycalculation'. The crash has the following message displayed:

forrtl: severe (157): Program Exception - access violation

Could anyone help me to take a look at it?

Thanks,

Zhanghong Tang