C++-generating back end: inaccessible or out-of-scope template arguments

[wchilders-nvidia]

Issue Summary

In certain complex cases, the C++-generating back end could put out a template argument that uses an inaccessible or out-of-scope name, making the generated code uncompilable.

Reproducing Source Code

repro.cpp

Command-line Options

cpfe-cp --c++17 --gnu_version=150200

Type of Issue

[Back End] There is a problem with the generated C++ code.

Additional Details

No response

Reproducing (Standard) Configuration(s)

linux-gcc-debug

Reproducing (Non-standard) Configuration

No response

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