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ghc-6.10.4-1mdv2010.0.i586.rpm

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>base-4.1.0.0: Basic libraries</TD
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>Data.Int</FONT
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><TR
><TD CLASS="infohead"
>Portability</TD
><TD CLASS="infoval"
>portable</TD
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><TR
><TD CLASS="infohead"
>Stability</TD
><TD CLASS="infoval"
>experimental</TD
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><TD CLASS="infohead"
>Maintainer</TD
><TD CLASS="infoval"
>libraries@haskell.org</TD
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><TD CLASS="section4"
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>Contents</B
></TD
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><TR
><TD
><DL
><DT
><A HREF="#1"
>Signed integer types
</A
></DT
><DT
><A HREF="#2"
>Notes
</A
></DT
></DL
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
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><TD CLASS="section1"
>Description</TD
></TR
><TR
><TD CLASS="doc"
>Signed integer types
</TD
></TR
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><TD CLASS="s15"
></TD
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><TD CLASS="section1"
>Synopsis</TD
></TR
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></TD
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><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A HREF="../ghc-prim/GHC-Types.html#t%3AInt"
>Int</A
> (<A HREF="../ghc-prim/GHC-Types.html#v%3AI%23"
>I#</A
>)</TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>data</SPAN
>  <A HREF="#t%3AInt8"
>Int8</A
> </TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>data</SPAN
>  <A HREF="#t%3AInt16"
>Int16</A
> </TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>data</SPAN
>  <A HREF="#t%3AInt32"
>Int32</A
> </TD
></TR
><TR
><TD CLASS="s8"
></TD
></TR
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>data</SPAN
>  <A HREF="#t%3AInt64"
>Int64</A
> </TD
></TR
></TABLE
></TD
></TR
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></TD
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><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
><A NAME="1"
><A NAME="1"
>Signed integer types
</A
></A
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="../ghc-prim/GHC-Types.html#t%3AInt"
>Int</A
> (<A HREF="../ghc-prim/GHC-Types.html#v%3AI%23"
>I#</A
>)</TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>data</SPAN
>  <A NAME="t:Int8"
><A NAME="t%3AInt8"
></A
></A
><B
>Int8</B
>  </TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="ndoc"
>8-bit signed integer type
</TD
></TR
><TR
><TD CLASS="section4"
><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:Int8')" ALT="show/hide"
> Instances</TD
></TR
><TR
><TD CLASS="body"
><DIV ID="i:Int8" STYLE="display:block;"
><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A HREF="Prelude.html#t%3ABounded"
>Bounded</A
> <A HREF="Data-Int.html#t%3AInt8"
>Int8</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Prelude.html#t%3AEnum"
>Enum</A
> <A HREF="Data-Int.html#t%3AInt8"
>Int8</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Eq.html#t%3AEq"
>Eq</A
> <A HREF="Data-Int.html#t%3AInt8"
>Int8</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Prelude.html#t%3AIntegral"
>Integral</A
> <A HREF="Data-Int.html#t%3AInt8"
>Int8</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Data.html#t%3AData"
>Data</A
> <A HREF="Data-Int.html#t%3AInt8"
>Int8</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Prelude.html#t%3ANum"
>Num</A
> <A HREF="Data-Int.html#t%3AInt8"
>Int8</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Ord.html#t%3AOrd"
>Ord</A
> <A HREF="Data-Int.html#t%3AInt8"
>Int8</A
></TD
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><A HREF="Text-Read.html#t%3ARead"
>Read</A
> <A HREF="Data-Int.html#t%3AInt8"
>Int8</A
></TD
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><TD CLASS="decl"
><A HREF="Prelude.html#t%3AReal"
>Real</A
> <A HREF="Data-Int.html#t%3AInt8"
>Int8</A
></TD
></TR
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><TD CLASS="decl"
><A HREF="Text-Show.html#t%3AShow"
>Show</A
> <A HREF="Data-Int.html#t%3AInt8"
>Int8</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="GHC-Arr.html#t%3AIx"
>Ix</A
> <A HREF="Data-Int.html#t%3AInt8"
>Int8</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Typeable.html#t%3ATypeable"
>Typeable</A
> <A HREF="Data-Int.html#t%3AInt8"
>Int8</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Bits.html#t%3ABits"
>Bits</A
> <A HREF="Data-Int.html#t%3AInt8"
>Int8</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Foreign-Storable.html#t%3AStorable"
>Storable</A
> <A HREF="Data-Int.html#t%3AInt8"
>Int8</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Text-Printf.html#t%3APrintfArg"
>PrintfArg</A
> <A HREF="Data-Int.html#t%3AInt8"
>Int8</A
></TD
></TR
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></TR
></TABLE
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></TR
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></TD
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><TD CLASS="decl"
><SPAN CLASS="keyword"
>data</SPAN
>  <A NAME="t:Int16"
><A NAME="t%3AInt16"
></A
></A
><B
>Int16</B
>  </TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="ndoc"
>16-bit signed integer type
</TD
></TR
><TR
><TD CLASS="section4"
><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:Int16')" ALT="show/hide"
> Instances</TD
></TR
><TR
><TD CLASS="body"
><DIV ID="i:Int16" STYLE="display:block;"
><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A HREF="Prelude.html#t%3ABounded"
>Bounded</A
> <A HREF="Data-Int.html#t%3AInt16"
>Int16</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Prelude.html#t%3AEnum"
>Enum</A
> <A HREF="Data-Int.html#t%3AInt16"
>Int16</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Eq.html#t%3AEq"
>Eq</A
> <A HREF="Data-Int.html#t%3AInt16"
>Int16</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Prelude.html#t%3AIntegral"
>Integral</A
> <A HREF="Data-Int.html#t%3AInt16"
>Int16</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Data.html#t%3AData"
>Data</A
> <A HREF="Data-Int.html#t%3AInt16"
>Int16</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Prelude.html#t%3ANum"
>Num</A
> <A HREF="Data-Int.html#t%3AInt16"
>Int16</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Ord.html#t%3AOrd"
>Ord</A
> <A HREF="Data-Int.html#t%3AInt16"
>Int16</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Text-Read.html#t%3ARead"
>Read</A
> <A HREF="Data-Int.html#t%3AInt16"
>Int16</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Prelude.html#t%3AReal"
>Real</A
> <A HREF="Data-Int.html#t%3AInt16"
>Int16</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Text-Show.html#t%3AShow"
>Show</A
> <A HREF="Data-Int.html#t%3AInt16"
>Int16</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="GHC-Arr.html#t%3AIx"
>Ix</A
> <A HREF="Data-Int.html#t%3AInt16"
>Int16</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Typeable.html#t%3ATypeable"
>Typeable</A
> <A HREF="Data-Int.html#t%3AInt16"
>Int16</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Bits.html#t%3ABits"
>Bits</A
> <A HREF="Data-Int.html#t%3AInt16"
>Int16</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Foreign-Storable.html#t%3AStorable"
>Storable</A
> <A HREF="Data-Int.html#t%3AInt16"
>Int16</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Text-Printf.html#t%3APrintfArg"
>PrintfArg</A
> <A HREF="Data-Int.html#t%3AInt16"
>Int16</A
></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>data</SPAN
>  <A NAME="t:Int32"
><A NAME="t%3AInt32"
></A
></A
><B
>Int32</B
>  </TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="ndoc"
>32-bit signed integer type
</TD
></TR
><TR
><TD CLASS="section4"
><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:Int32')" ALT="show/hide"
> Instances</TD
></TR
><TR
><TD CLASS="body"
><DIV ID="i:Int32" STYLE="display:block;"
><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A HREF="Prelude.html#t%3ABounded"
>Bounded</A
> <A HREF="Data-Int.html#t%3AInt32"
>Int32</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Prelude.html#t%3AEnum"
>Enum</A
> <A HREF="Data-Int.html#t%3AInt32"
>Int32</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Eq.html#t%3AEq"
>Eq</A
> <A HREF="Data-Int.html#t%3AInt32"
>Int32</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Prelude.html#t%3AIntegral"
>Integral</A
> <A HREF="Data-Int.html#t%3AInt32"
>Int32</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Data.html#t%3AData"
>Data</A
> <A HREF="Data-Int.html#t%3AInt32"
>Int32</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Prelude.html#t%3ANum"
>Num</A
> <A HREF="Data-Int.html#t%3AInt32"
>Int32</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Ord.html#t%3AOrd"
>Ord</A
> <A HREF="Data-Int.html#t%3AInt32"
>Int32</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Text-Read.html#t%3ARead"
>Read</A
> <A HREF="Data-Int.html#t%3AInt32"
>Int32</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Prelude.html#t%3AReal"
>Real</A
> <A HREF="Data-Int.html#t%3AInt32"
>Int32</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Text-Show.html#t%3AShow"
>Show</A
> <A HREF="Data-Int.html#t%3AInt32"
>Int32</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="GHC-Arr.html#t%3AIx"
>Ix</A
> <A HREF="Data-Int.html#t%3AInt32"
>Int32</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Typeable.html#t%3ATypeable"
>Typeable</A
> <A HREF="Data-Int.html#t%3AInt32"
>Int32</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Bits.html#t%3ABits"
>Bits</A
> <A HREF="Data-Int.html#t%3AInt32"
>Int32</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Foreign-Storable.html#t%3AStorable"
>Storable</A
> <A HREF="Data-Int.html#t%3AInt32"
>Int32</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Text-Printf.html#t%3APrintfArg"
>PrintfArg</A
> <A HREF="Data-Int.html#t%3AInt32"
>Int32</A
></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="decl"
><SPAN CLASS="keyword"
>data</SPAN
>  <A NAME="t:Int64"
><A NAME="t%3AInt64"
></A
></A
><B
>Int64</B
>  </TD
></TR
><TR
><TD CLASS="body"
><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0"
><TR
><TD CLASS="ndoc"
>64-bit signed integer type
</TD
></TR
><TR
><TD CLASS="section4"
><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:Int64')" ALT="show/hide"
> Instances</TD
></TR
><TR
><TD CLASS="body"
><DIV ID="i:Int64" STYLE="display:block;"
><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0"
><TR
><TD CLASS="decl"
><A HREF="Prelude.html#t%3ABounded"
>Bounded</A
> <A HREF="Data-Int.html#t%3AInt64"
>Int64</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Prelude.html#t%3AEnum"
>Enum</A
> <A HREF="Data-Int.html#t%3AInt64"
>Int64</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Eq.html#t%3AEq"
>Eq</A
> <A HREF="Data-Int.html#t%3AInt64"
>Int64</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Prelude.html#t%3AIntegral"
>Integral</A
> <A HREF="Data-Int.html#t%3AInt64"
>Int64</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Data.html#t%3AData"
>Data</A
> <A HREF="Data-Int.html#t%3AInt64"
>Int64</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Prelude.html#t%3ANum"
>Num</A
> <A HREF="Data-Int.html#t%3AInt64"
>Int64</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Ord.html#t%3AOrd"
>Ord</A
> <A HREF="Data-Int.html#t%3AInt64"
>Int64</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Text-Read.html#t%3ARead"
>Read</A
> <A HREF="Data-Int.html#t%3AInt64"
>Int64</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Prelude.html#t%3AReal"
>Real</A
> <A HREF="Data-Int.html#t%3AInt64"
>Int64</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Text-Show.html#t%3AShow"
>Show</A
> <A HREF="Data-Int.html#t%3AInt64"
>Int64</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="GHC-Arr.html#t%3AIx"
>Ix</A
> <A HREF="Data-Int.html#t%3AInt64"
>Int64</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Typeable.html#t%3ATypeable"
>Typeable</A
> <A HREF="Data-Int.html#t%3AInt64"
>Int64</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Data-Bits.html#t%3ABits"
>Bits</A
> <A HREF="Data-Int.html#t%3AInt64"
>Int64</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Foreign-Storable.html#t%3AStorable"
>Storable</A
> <A HREF="Data-Int.html#t%3AInt64"
>Int64</A
></TD
></TR
><TR
><TD CLASS="decl"
><A HREF="Text-Printf.html#t%3APrintfArg"
>PrintfArg</A
> <A HREF="Data-Int.html#t%3AInt64"
>Int64</A
></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="section1"
><A NAME="2"
><A NAME="2"
>Notes
</A
></A
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="doc"
><UL
><LI
> All arithmetic is performed modulo 2^n, where <TT
>n</TT
> is the number of
  bits in the type.
</LI
><LI
> For coercing between any two integer types, use Prelude.fromIntegral,
  which is specialized for all the common cases so should be fast
  enough.  Coercing word types (see <A HREF="Data-Word.html"
>Data.Word</A
>) to and from integer
  types preserves representation, not sign.
</LI
><LI
> The rules that hold for Prelude.Enum instances over a
  bounded type such as <TT
><A HREF="../ghc-prim/GHC-Types.html#t%3AInt"
>Int</A
></TT
> (see the section of the
  Haskell report dealing with arithmetic sequences) also hold for the
  Prelude.Enum instances over the various
  <TT
><A HREF="../ghc-prim/GHC-Types.html#t%3AInt"
>Int</A
></TT
> types defined here.
</LI
><LI
> Right and left shifts by amounts greater than or equal to the width
  of the type result in either zero or -1, depending on the sign of
  the value being shifted.  This is contrary to the behaviour in C,
  which is undefined; a common interpretation is to truncate the shift
  count to the width of the type, for example <TT
>1 &lt;&lt; 32
  == 1</TT
> in some C implementations.
</LI
></UL
></TD
></TR
><TR
><TD CLASS="s15"
></TD
></TR
><TR
><TD CLASS="botbar"
>Produced by <A HREF="http://www.haskell.org/haddock/"
>Haddock</A
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