#physical-equality

OCaml -safe-string string literal sharing across separate modules

OCaml -safe-string string literal sharing across separate modules With -safe-string enabled by default since OCaml 4.06, strings are immutable and mutation lives in Bytes. The compiler may physically share identical literals inside a single compilation unit, but the language definition does not state whether the same literal in different modules maps to one

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ocamlseparate-compilationphysical-equality