c++ - Why an unnamed namespace is a "superior" alternative to static? -

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this question has answer here:

the section $7.3.1.1/2 c++ standard reads:

the use of static keyword deprecated when declaring objects in namespace scope; unnamed-namespace provides a superior alternative.

i don't understand why unnamed namespace considered superior alternative? rationale? i've known long time standard says, i've never thought it, when replying question: superiority of unnamed namespace on static?

is considered superior because can applied user-defined types well, described in answer? or there other reason well, i'm unaware of? i'm asking this, particularly because reasoning in answer, while standard might have else in mind.

  • as you've mentioned, namespace works anything, not functions , objects.
  • as greg has pointed out, static means many things already.
  • namespaces provide uniform , consistent way of controlling visibility @ global scope. don't have use different tools same thing.
  • when using anonymous namespace, function/object name mangled properly, allows see "(anonymous namespace)::xyz" in symbol table after de-mangling, , not "xyz" static linkage.
  • as pointed out in comments below, isn't allowed use static things template arguments, while anonymous namespaces it's fine.
  • more? probably, can't think of else right now.

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