Internal error: assertion failed / instantiate_default_argument

Accelerated Computing HPC Compilers nvc, nvc++ and nvfortran
1

I am compiling a code that includes the C++ Mathematical Expression Library (http://www.partow.net/programming/exprtk/). Using nvc++ 23.5.0 I get the following error message

exprtk.hpp", line 11781: internal error: assertion failed at: "templates.cpp", line 17582 in instantiate_default_argument

              if (is_vector_node(branch()))
                                        ^

1 catastrophic error detected in the compilation of "/lustre/home/xxx/gsFunctionExpr_.cpp".

Any help is appreciated.

2

The issue you are encountering is related to a bug found in the EDG C++ front-end related to how default arguments are handled.

My understanding is that in the latest version of the EDG front-end, this issue has been resolved.

3

Thanks for your answer. I am using nvc++ 23.5.0. What is the latest version of the EDG front-end and how can I test it?

4

nvc++ uses EDG as our front-end C++ compiler but it not something you can update yourself.

I just checked and it appears the error still occurs in our development compiler so have filed a problem report, TPR #34014, and sent to engineering for investigation.

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