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Within LTS Haskell 24.32 (ghc-9.10.3)
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ghc-internal GHC.Internal.Data.IORef Read the value of an IORef. Beware that the CPU executing a thread can reorder reads or writes to independent locations. See Data.IORef#memmodel for more details.
readSTRef :: STRef s a -> ST s aghc-internal GHC.Internal.Data.STRef Read the value of an STRef
readAddrArray# :: MutableByteArray# d -> Int# -> State# d -> (# State# d, Addr# #)ghc-internal GHC.Internal.Exts Read a machine address; offset in machine words. Warning: this can fail with an unchecked exception.
readAddrOffAddr# :: Addr# -> Int# -> State# d -> (# State# d, Addr# #)ghc-internal GHC.Internal.Exts Read a machine address; offset in machine words. On some platforms, the access may fail for an insufficiently aligned Addr#. Warning: this can fail with an unchecked exception.
readCharArray# :: MutableByteArray# d -> Int# -> State# d -> (# State# d, Char# #)ghc-internal GHC.Internal.Exts Read an 8-bit character; offset in bytes. Warning: this can fail with an unchecked exception.
readCharOffAddr# :: Addr# -> Int# -> State# d -> (# State# d, Char# #)ghc-internal GHC.Internal.Exts Read an 8-bit character; offset in bytes. Warning: this can fail with an unchecked exception.
readDoubleArray# :: MutableByteArray# d -> Int# -> State# d -> (# State# d, Double# #)ghc-internal GHC.Internal.Exts Read a double-precision floating-point value; offset in 8-byte words. Warning: this can fail with an unchecked exception.
readDoubleArrayAsDoubleX2# :: MutableByteArray# d -> Int# -> State# d -> (# State# d, DoubleX2# #)ghc-internal GHC.Internal.Exts Read a vector from specified index of mutable array of scalars; offset is in scalar elements. Warning: this is only available on LLVM and can fail with an unchecked exception.
readDoubleArrayAsDoubleX4# :: MutableByteArray# d -> Int# -> State# d -> (# State# d, DoubleX4# #)ghc-internal GHC.Internal.Exts Read a vector from specified index of mutable array of scalars; offset is in scalar elements. Warning: this is only available on LLVM and can fail with an unchecked exception.
readDoubleArrayAsDoubleX8# :: MutableByteArray# d -> Int# -> State# d -> (# State# d, DoubleX8# #)ghc-internal GHC.Internal.Exts Read a vector from specified index of mutable array of scalars; offset is in scalar elements. Warning: this is only available on LLVM and can fail with an unchecked exception.