Try (try ...) vs @panic style for initialisation

[kj4tmp]

@anticrisis

Only use @panic for logic errors, not for runtime errors such as memory, missing configure files, etc.

unreachable may also be useful!

Unreachable

unreachable is an assertion that the programmer makes to ensure program correctness and enable compiler optimizations. It is but one among a plethora of other assertions, like casting, indexing and aligning operations, all implemented as safety-checked undefined behavior. For simplification, unreachable’s semantics could be decomposed into several different behaviors depending on evaluation time as well as optimization mode: Hitting unreachable at runtime emits a panic when compiled in Debug …