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equality and hashing for closures

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Araq 2012-07-17 17:26:02 +02:00
commit 832da8a303
7 changed files with 31 additions and 11 deletions
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lib/system.nim
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@ -1348,6 +1348,7 @@ proc isNil*(x: string): bool {.noSideEffect, magic: "IsNil".}
proc isNil*[T](x: ptr T): bool {.noSideEffect, magic: "IsNil".}
proc isNil*(x: pointer): bool {.noSideEffect, magic: "IsNil".}
proc isNil*(x: cstring): bool {.noSideEffect, magic: "IsNil".}
proc isNil*[T: proc](x: T): bool {.noSideEffect, magic: "IsNil".}
## Fast check whether `x` is nil. This is sometimes more efficient than
## ``== nil``.