Haskell 音标拼音: [h'æskəl]
(Named after the logician {Haskell Curry }) A {lazy }
purely functional } language largely derived from {Miranda }
but with several extensions . Haskell was designed by a
committee from the {functional programming } community in April
1990 . It features static {polymorphic } typing , {higher -order
functions }, user -defined {algebraic data types }, and
pattern -matching } {list comprehensions }. Innovations include
a {class } system , systematic operator {overloading }, a
functional I /O } system , functional {arrays }, and {separate
compilation }.
Haskell 1 .3 added many new features , including {monadic I /O },
standard libraries , {constructor classes }, {labeled fields } in
datatypes , {strictness } {annotations }, an improved {module }
system , and many changes to the Prelude .
Gofer } is a cut -down version of Haskell with some extra
features .
Filename extension }: .hs , .lhs ({literate programming }).
http ://haskell .org /)}.
Report on the Programming Language Haskell Version 1 .1 ",
Paul Hudak & P. Wadler eds, CS Depts, U Glasgow and Yale U.,
.
HPPA1 .1 }/{HPUX }9 ,10 ; {SPARC }/{SunOs } 4 , {Solaris } 2 ;
MIPS }/{Irix } 5 ,6 ; {Intel 80386 }/{Linux },{Solaris }
2 ,{FreeBSD },{CygWin } 32 ; {PowerPC }/{AIX }. GHC generates {C }
or {native code }.
ftp ://ftp .dcs .glasgow .ac .uk /pub /haskell /glasgow /)}.
E -mail : .
Haskell -B - Haskell 1 .2 implemented in {LML }, generates
native code }.
ftp ://ftp .cs .chalmers .se /pub /haskell /chalmers /)}.
E -mail : .
1997 -06 -06 )Haskell ,
AR --
U .
S .
city in Arkansas Population (
2000 ):
2645 Housing Units (
2000 ):
762 Land area (
2000 ):
4 .
621199 sq .
miles (
11 .
968849 sq .
km )
Water area (
2000 ):
0 .
022774 sq .
miles (
0 .
058985 sq .
km )
Total area (
2000 ):
4 .
643973 sq .
miles (
12 .
027834 sq .
km )
FIPS code :
30640 Located within :
Arkansas (
AR ),
FIPS 05 Location :
34 .
512171 N ,
92 .
638978 W ZIP Codes (
1990 ):
Note :
some ZIP codes may be omitted esp .
for suburbs .
Headwords :
Haskell ,
AR Haskell
Haskell ,
OK --
U .
S .
town in Oklahoma Population (
2000 ):
1765 Housing Units (
2000 ):
763 Land area (
2000 ):
2 .
173356 sq .
miles (
5 .
628965 sq .
km )
Water area (
2000 ):
0 .
000000 sq .
miles (
0 .
000000 sq .
km )
Total area (
2000 ):
2 .
173356 sq .
miles (
5 .
628965 sq .
km )
FIPS code :
32900 Located within :
Oklahoma (
OK ),
FIPS 40 Location :
35 .
819951 N ,
95 .
676956 W ZIP Codes (
1990 ):
74436 Note :
some ZIP codes may be omitted esp .
for suburbs .
Headwords :
Haskell ,
OK Haskell
Haskell ,
TX --
U .
S .
city in Texas Population (
2000 ):
3106 Housing Units (
2000 ):
1526 Land area (
2000 ):
3 .
402575 sq .
miles (
8 .
812629 sq .
km )
Water area (
2000 ):
0 .
000000 sq .
miles (
0 .
000000 sq .
km )
Total area (
2000 ):
3 .
402575 sq .
miles (
8 .
812629 sq .
km )
FIPS code :
32696 Located within :
Texas (
TX ),
FIPS 48 Location :
33 .
160152 N ,
99 .
734572 W ZIP Codes (
1990 ):
79521 Note :
some ZIP codes may be omitted esp .
for suburbs .
Headwords :
Haskell ,
TX Haskell
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