C++ 2019 -

Leo was a systems programmer. He didn’t build websites or phone apps. He built the logic that ran inside medical imaging machines—the kind where a segmentation fault could mean more than a crashed program. It meant a patient had to be re-scanned.

1>------ Build started: Project: Reconstructor, Configuration: Release x64 ------ 1>Reconstructor.cpp 1>Reconstructor.obj : error LNK2001: unresolved external symbol "private: virtual void __cdecl VoxelGrid::serialize(class Archive &)" (?serialize@VoxelGrid@@EEAAXAEAVArchive@@@Z) 1>C:\Dev\Reconstructor\x64\Release\Reconstructor.exe : fatal error LNK1120: 1 unresolved externals c++ 2019

Tomorrow, he would refactor it to C++20. He heard std::span was finally stable. But tonight, he had earned his sleep. Leo was a systems programmer

They looked identical. Wait. He squinted. ------ Build started: Project: Reconstructor