Implement getEnv and getEnvironment #232
Merged
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OsString
variantSee haskell/filepath#221
base/ghc implementations: https://hackage.haskell.org/package/ghc-internal-9.1001.0/docs/src//GHC.Internal.System.Environment.html
Base runs two calls to
c_GetEnvironmentVariable
to get a more accurate allocation. But it's an additional call.