31 lines
1.2 KiB
Nim
31 lines
1.2 KiB
Nim
import ../ptrops
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export ptrops
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proc baseAddr*[T](x: openarray[T]): pointer = cast[pointer](x)
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# Please note that we use templates here on purpose.
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# As much as I believe in the power of optimizing compilers, it turned
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# out that the use of forced inlining with templates still creates a
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# significant difference in the release builds of nim-faststreams
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template shift*(p: pointer, delta: int): pointer {.deprecated: "use ptrops".} =
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p.offset(delta)
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template shift*[T](p: ptr T, delta: int): ptr T {.deprecated: "use ptrops".} =
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p.offset(delta)
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when (NimMajor,NimMinor,NimPatch) >= (0,19,9):
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template makeOpenArray*[T](p: ptr T, len: int): auto =
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toOpenArray(cast[ptr UncheckedArray[T]](p), 0, len - 1)
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template makeOpenArray*(p: pointer, T: type, len: int): auto =
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toOpenArray(cast[ptr UncheckedArray[T]](p), 0, len - 1)
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elif (NimMajor,NimMinor,NimPatch) >= (0,19,0):
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# TODO: These are fallbacks until we upgrade to 0.19.9
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template makeOpenArray*(p: pointer, T: type, len: int): auto =
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toOpenArray(cast[ptr array[0, T]](p)[], 0, len - 1)
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template makeOpenArray*[T](p: ptr T, len: int): auto =
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toOpenArray(cast[ptr array[0, T]](p)[], 0, len - 1)
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