#2548: Compilation failure: "const" assignment in LoopControl/src/loopcontrol.cc

Reporter: Bernard Kelly Status: new Milestone: ET_2021_05 Version: ET_2021_05 Type: bug Priority: major Component: EinsteinToolkit thorn

Comment (by Roland Haas):

Hmm, these may be causes by a change in C++ where constexpr and const are not longer implying each other, though why it would only happen for you with Intel17 I am not sure. Could be the same library mismatch as in #2457 but I kind of doubt it. I took a look at the reference for the function call (`min`) in question: [https://en.cppreference.com/w/cpp/numeric/random/linear%5C_congruential%5C_e...) and it is declared as

``` static constexpr result_type min(); ```

so the compiler error seems odd. The only thing I can think of is that either the C++ standard library used (incorrectly) does not declare it as `constexpr`, or that the compiler gets confused b/c I am calling a static class function via an object.

I will try and see if `minstd_rand::minx()` works instead, assuming I can find a cluster where I can reproduce the issue.

-- Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2548/compilation-failur...