Fix runtime error on macosx 10.13

With macosx 10.13 (Apple clang 10.0) there is a runtime problem when loading libL1. The problem is due to the usage of a static constexpr in a LOG statement. The runtime error can be overcome when doing a static cast of the variables.

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Dear @se.gorbunov, @v.akishina,

you have been identified as code owner of at least one file which was changed with this merge request.

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added 21 commits

• 2d0d3bff...9e8b1486 - 20 commits from branch computing:master
• 33a9b7ca - Fix runtime error on macosx 10.13

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added 3 commits

• 33a9b7ca...0629d30d - 2 commits from branch computing:master
• 7775ed1a - Fix runtime error on macosx 10.13

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merged