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and :: Int -> Int -> Int
Bitwise AND.
or :: Int -> Int -> Int
Bitwise OR.
pow :: Int -> Int -> Int
Raise an Int to the power of another Int.
quot :: Int -> Int -> Int
The quot
function provides truncating integer division (see the
documentation for the EuclideanRing
class). It is identical to div
in
the EuclideanRing Int
instance if the dividend is positive, but will be
slightly different if the dividend is negative. For example:
div 2 3 == 0
quot 2 3 == 0
div (-2) 3 == (-1)
quot (-2) 3 == 0
div 2 (-3) == 0
quot 2 (-3) == 0
rem :: Int -> Int -> Int
The rem
function provides the remainder after truncating integer
division (see the documentation for the EuclideanRing
class). It is
identical to mod
in the EuclideanRing Int
instance if the dividend is
positive, but will be slightly different if the dividend is negative. For
example:
mod 2 3 == 2
rem 2 3 == 2
mod (-2) 3 == 1
rem (-2) 3 == (-2)
mod 2 (-3) == 2
rem 2 (-3) == 2
shl :: Int -> Int -> Int
Bitwise shift left.
shr :: Int -> Int -> Int
Bitwise shift right.
xor :: Int -> Int -> Int
Bitwise XOR.
zshr :: Int -> Int -> Int
Bitwise zero-fill shift right.
imul :: Int -> Int -> Int
Returns the result of the C-like 32-bit multiplication of the two arguments.
stirling1 :: Int -> Int -> Int
Returns the number of permutations compound of products of exactly k disjoint cycles over n elements. For instance, stirling1 5 3 = 35 for
- 20 for cardinality of type (abc)(d)(e) and
- 15 for cardinality of type (ab)(cd)(e)
unPrecise :: Int -> Int -> Int
zorder :: Int -> Int -> Int
power :: forall m. Monoid m => m -> Int -> m
Append a value to itself a certain number of times. For the
Multiplicative
type, and for a non-negative power, this is the same as
normal number exponentiation.
If the second argument is negative this function will return mempty
(unlike normal number exponentiation). The Monoid
constraint alone
is not enough to write a power
function with the property that power x
n
cancels with power x (-n)
, i.e. power x n <> power x (-n) = mempty
.
For that, we would additionally need the ability to invert elements, i.e.
a Group.
power [1,2] 3 == [1,2,1,2,1,2]
power [1,2] 1 == [1,2]
power [1,2] 0 == []
power [1,2] (-3) == []
repeat :: forall a. Monoid a => a -> Int -> a
power :: forall g. Group g => g -> Int -> g
Append a value (or its inverse) to itself a certain number of times.
For the Additive Int
type, this is the same as multiplication.
pow :: forall a. Semiring a => a -> Int -> a
Integer power
addLeadingZeros :: forall a. Elastic a => Int -> a -> a
offset :: forall q sql. ToOffset q => Resume q (Offset E) sql => Int -> q -> sql
OFFSET statement
Note: OFFSET must always follow after LIMIT or ORDER BY
setUuid :: forall m. HasUuid m => Int -> m -> m
add :: forall a. Semiring a => a -> a -> a
append :: forall a. Semigroup a => a -> a -> a
conj :: forall a. HeytingAlgebra a => a -> a -> a
const :: forall a b. a -> b -> a
Returns its first argument and ignores its second.
const 1 "hello" = 1
It can also be thought of as creating a function that ignores its argument:
const 1 = \_ -> 1
disj :: forall a. HeytingAlgebra a => a -> a -> a
div :: forall a. EuclideanRing a => a -> a -> a
gcd :: forall a. Eq a => EuclideanRing a => a -> a -> a
The greatest common divisor of two values.
genericAdd :: forall a rep. Generic a rep => GenericSemiring rep => a -> a -> a
A Generic
implementation of the add
member from the Semiring
type class.
genericAdd' :: forall a. GenericSemiring a => a -> a -> a
genericAppend :: forall a rep. Generic a rep => GenericSemigroup rep => a -> a -> a
A Generic
implementation of the append
member from the Semigroup
type class.
genericAppend' :: forall a. GenericSemigroup a => a -> a -> a
genericConj :: forall a rep. Generic a rep => GenericHeytingAlgebra rep => a -> a -> a
A Generic
implementation of the conj
member from the HeytingAlgebra
type class.
genericConj' :: forall a. GenericHeytingAlgebra a => a -> a -> a
genericDisj :: forall a rep. Generic a rep => GenericHeytingAlgebra rep => a -> a -> a
A Generic
implementation of the disj
member from the HeytingAlgebra
type class.
genericDisj' :: forall a. GenericHeytingAlgebra a => a -> a -> a
genericImplies :: forall a rep. Generic a rep => GenericHeytingAlgebra rep => a -> a -> a
A Generic
implementation of the implies
member from the HeytingAlgebra
type class.
genericImplies' :: forall a. GenericHeytingAlgebra a => a -> a -> a
genericMul :: forall a rep. Generic a rep => GenericSemiring rep => a -> a -> a
A Generic
implementation of the mul
member from the Semiring
type class.
genericMul' :: forall a. GenericSemiring a => a -> a -> a
genericSub :: forall a rep. Generic a rep => GenericRing rep => a -> a -> a
A Generic
implementation of the sub
member from the Ring
type class.
genericSub' :: forall a. GenericRing a => a -> a -> a
implies :: forall a. HeytingAlgebra a => a -> a -> a
lcm :: forall a. Eq a => EuclideanRing a => a -> a -> a
The least common multiple of two values.
leftDiv :: forall a. DivisionRing a => a -> a -> a
Left division, defined as leftDiv a b = recip b * a
. Left and right
division are distinct in this module because a DivisionRing
is not
necessarily commutative.
If the type a
is also a EuclideanRing
, then this function is
equivalent to div
from the EuclideanRing
class. When working
abstractly, div
should generally be preferred, unless you know that you
need your code to work with noncommutative rings.
max :: forall a. Ord a => a -> a -> a
Take the maximum of two values. If they are considered equal, the first argument is chosen.
min :: forall a. Ord a => a -> a -> a
Take the minimum of two values. If they are considered equal, the first argument is chosen.
mod :: forall a. EuclideanRing a => a -> a -> a
mul :: forall a. Semiring a => a -> a -> a
rightDiv :: forall a. DivisionRing a => a -> a -> a
Right division, defined as rightDiv a b = a * recip b
. Left and right
division are distinct in this module because a DivisionRing
is not
necessarily commutative.
If the type a
is also a EuclideanRing
, then this function is
equivalent to div
from the EuclideanRing
class. When working
abstractly, div
should generally be preferred, unless you know that you
need your code to work with noncommutative rings.
sub :: forall a. Ring a => a -> a -> a
create :: forall buf m. MutableBuffer buf m => Int -> m buf
Creates a new buffer of the specified size.
size :: forall buf m. MutableBuffer buf m => buf -> m Int
Returns the size of a buffer.
sans :: forall m a b. At m a b => a -> m -> m
add :: forall x y z. Add x y z => x -> y -> z
and :: forall b1 b2 b3. And b1 b2 b3 => b1 -> b2 -> b3
div :: forall x y z. Div x y z => x -> y -> z
eq :: forall b1 b2 b3. Eq b1 b2 b3 => b1 -> b2 -> b3
gcd :: forall x y z. GCD x y z => x -> y -> z
imp :: forall b1 b2 b3. Imp b1 b2 b3 => b1 -> b2 -> b3
max :: forall x y z. Max x y z => x -> y -> z
min :: forall x y z. Min x y z => x -> y -> z
mod :: forall x y r. Mod x y r => x -> y -> r
mul :: forall x y z. Mul x y z => x -> y -> z
or :: forall b1 b2 b3. Or b1 b2 b3 => b1 -> b2 -> b3
sub :: forall x y z. Sub x y z => x -> y -> z
trich :: forall x y r. Trich x y r => x -> y -> r
xor :: forall b1 b2 b3. Xor b1 b2 b3 => b1 -> b2 -> b3
hmap :: forall f a b. HMap f a b => f -> a -> b
hmapWithIndex :: forall f a b. HMapWithIndex f a b => f -> a -> b
mapping :: forall f a b. Mapping f a b => f -> a -> b
call :: forall s. IsString s => Monoid s => s -> s -> s
Syntax for CSS function call.
reduce :: forall f i o. Reducible f i o => f -> i -> o
lact :: forall g s. LeftAction g s => g -> s -> s
ract :: forall g s. RightAction g s => s -> g -> s
convertOptions :: forall t i o. ConvertOptions t i o => t -> i -> o
defaults :: forall defaults provided all. Defaults defaults provided all => defaults -> provided -> all
fromInt :: forall a. IntLiftable a => Int -> a
maddL :: forall x r. LeftModule x r => x -> x -> x
maddR :: forall x r. RightModule x r => x -> x -> x
mmulL :: forall x r. LeftModule x r => r -> x -> x
mmulR :: forall x r. RightModule x r => x -> r -> x
msubL :: forall x r. LeftModule x r => x -> x -> x
msubR :: forall x r. RightModule x r => x -> x -> x
bindTo :: forall f o. f -> o -> f
defaultUndef :: forall a. a -> a -> a
new :: forall f a o. f -> a -> o
Call new on the function with an array or pseudoarray of arguments
dot :: forall p n. ToPos n p => Semiring n => p -> p -> n
Get the dot product of two vectors
mapProduct :: forall mp a b. MapProduct mp a b => mp -> a -> b
putInsideMod :: forall r p n. ToRegion n r => AsPosEndo n p => EuclideanRing n => r -> p -> p
Put a position inside a region by using the modulus operator
act :: forall m s. Action m s => m -> s -> s
Convert a value of type @m@ to an action on @s@ values.
at :: forall c k r. Monoid r => Lookup c k r => c -> k -> r
This simple helper works on any Lookup
instance where the return type is
a Monoid
, and is the same as lookup
except that it returns a t
instead of a Maybe t
. If lookup
would return Nothing
, then at
returns mempty
.
at :: forall c k r. Monoid r => Lookup c k r => c -> k -> r
This simple helper works on any Lookup
instance where the return type is
a Monoid
, and is the same as lookup
except that it returns a t
instead of a Maybe t
. If lookup
would return Nothing
, then at
returns mempty
.
join :: forall a. JoinSemilattice a => a -> a -> a
meet :: forall a. MeetSemilattice a => a -> a -> a
pathAppend :: forall m. XPathLike m => m -> m -> m
Put a path seperator between two XPaths and return the resulting XPath.
pathAppendNSx :: forall m. XPathLike m => m -> m -> m
Useful variant of pathAppend
needed for some XPath implementations;
insert a separator with a dummy namespace ("x") for the second XPath
fragment. For example:
root /? "record" /? "identifier" == "/x:record/x:identifier"
.
setCtx :: forall props' props ctx. WithContextProps props' props ctx => ctx -> props' -> props
adjacentSibling :: forall a b c. IsExtensibleSelector a => ToVal a => Combine b c => a -> b -> c
and :: forall a. Binary a => a -> a -> a
arbitraryEJsonOfSize :: forall t m. MonadGen m => MonadRec m => Corecursive t EJsonF => Int -> m t
child :: forall a b c. IsExtensibleSelector a => ToVal a => Combine b c => a -> b -> c
dbg :: forall s a. Show s => s -> a -> a
descendant :: forall a b c. IsExtensibleSelector a => ToVal a => Combine b c => a -> b -> c
diff :: forall a d. Diff a d => a -> a -> d
fromInt :: forall a. Ring a => Int -> a
generalSibling :: forall a b c. IsExtensibleSelector a => ToVal a => Combine b c => a -> b -> c
join :: forall a. JoinSemilattice a => a -> a -> a
maddL :: forall x r. LeftModule x r => x -> x -> x
maddR :: forall x r. RightModule x r => x -> x -> x
meet :: forall a. MeetSemilattice a => a -> a -> a
mmulL :: forall x r. LeftModule x r => r -> x -> x
mmulR :: forall x r. RightModule x r => x -> r -> x
msubL :: forall x r. LeftModule x r => x -> x -> x
msubR :: forall x r. RightModule x r => x -> x -> x
nand :: forall α. HeytingAlgebra α => α -> α -> α
nor :: forall α. HeytingAlgebra α => α -> α -> α
or :: forall a. Binary a => a -> a -> a
patch :: forall a d. Patch a d => a -> d -> a
pursxStringAnonymous :: forall accumulator next res. PursxStringAnonymous accumulator next res => accumulator -> next -> res
pursxValAnonymous :: forall accumulator next res. PursxValAnonymous accumulator next res => accumulator -> next -> res
reciprocal :: forall n n1 n2 a r. Add n2 1 n1 => Add n1 1 n => Arity a n => Divisible r => Eq r => EuclideanRing r => Leadable r => Ord r => Pad n2 (Polynomial r) a => Peel r r => Unpad n2 (Polynomial r) a => a -> a -> a
Computes the reciprocal of the first polynomial in the extension whose minimal polynomial is provided by the second polynomial
set :: forall s t a b @sym lenses. IsSymbol sym => ParseSymbol sym lenses => ConstructBarlow lenses Function s t a b => b -> s -> t
xor :: forall a. Binary a => a -> a -> a
xor :: forall a. HeytingAlgebra a => a -> a -> a
xor :: forall α. HeytingAlgebra α => α -> α -> α
_add :: forall a. HasAdd a => a -> a -> a
_and :: forall a. HasAnd a => a -> a -> a
_divide :: forall a. HasDivide a => a -> a -> a
_multiply :: forall a. HasMultiply a => a -> a -> a
_or :: forall a. HasOr a => a -> a -> a
_power :: forall a. HasPower a => a -> a -> a
_remainder :: forall a. HasRemainder a => a -> a -> a
_subtract :: forall a. HasSubtract a => a -> a -> a
add :: forall a. HasAdd a => a -> a -> a
add :: forall a b c r. Arith a b c r => a -> b -> c
always :: forall b a. a -> b -> a
Always returns the first argument.
"anything" :always 1 -- 1
This is the constant function.
and :: forall a. HasAnd a => a -> a -> a
and :: forall a b r. LogicalMatcher a b r => a -> b -> r
asTypeOf :: forall a. a -> a -> a
A type-restricted version of always
.
[] :asTypeOf [1] -- [] :: Array Int
bind :: forall a g f. f -> a -> g
cons :: forall a b r. ConsGen a b r => a -> b -> r
decorate :: forall a b. Decorate a b => a -> b -> a
decorateFlipped :: forall b a. Decorate b a => a -> b -> b
diff' :: forall changed model. Diff changed model => changed -> (model -> model)
div :: forall a b c r. Arith a b c r => a -> b -> c
divide :: forall a. HasDivide a => a -> a -> a
dot :: forall p g f. Dottable p g f => p -> g -> f
exec :: forall m q. MonadSession m => AsQuery q => q -> m Int
Executes a query and returns the number of rows affected
fold :: forall stepper a fold. Fold stepper a fold => stepper -> a -> fold
from :: forall f q fields sql. ToFrom f q fields => Resume q (From f fields E) sql => f -> q -> sql
FROM accepts the following sources
- Tables
- Inner and outer joins
- Aliased tables
- Aliased SELECT statements
Due to how SQL binding works, joins and subqueries require brackets to be parsed correctly. For example:
SELECT column FROM (SELECT column FROM table) AS alias
should beselect column # from (select column # from table # as alias)
)SELECT column FROM table alias JOIN other_table other_alias
should beselect column # from ((table # as alias)
join(other_table # as other_alias))
)
To aid composition, SELECT projections are only validated on FROM
getAllArgs :: forall all given. OptArgs all given => all -> given -> all
groupBy :: forall f s q sql grouped columns. ToGroupBy q s columns => GroupedColumns f columns grouped => ValidGroupByProjection s grouped => Resume q (GroupBy f E) sql => f -> q -> sql
GROUP BY statement
heightSegments :: forall nt r. Newtype nt (Variant (heightSegments :: Int | r)) => Int -> nt
hmap :: forall f a b. HMap f a b => f -> a -> b
hmapWithIndex :: forall f a b. HMapWithIndex f a b => f -> a -> b
int :: forall t. Corecursive t (SqlF EJsonF) => Int -> t
investigate :: forall b a. Warn "Debug.Trace usage" => Show a => a -> b -> b
Once in a while, we all need to debug. A lot of programmers from imperative
languages find real trouble with debugging, as they can't just bung in a
console.log
to see values. Well, what if I told you... you can! So,
we can cheat a little bit, and use some escape hatches in the Debug
package, including traceShow
, which will log anything Show
able. With
this function, we can show a value at any point, and return anything!
kestrel :: forall b a. a -> b -> a
K combinator - kestrel
K
Λ a b . a → b → a
λ x y . x
mapping :: forall f a b. Mapping f a b => f -> a -> b
max :: forall a. HasGreater a => a -> a -> a
Returns the greater value.
max 1 2 -- 2
max 2 1 -- 2
maxByOrder :: forall a. Ord a => a -> a -> a
min :: forall a. HasLess a => a -> a -> a
Returns the lesser value.
min 1 2 -- 1
min 2 1 -- 1
minByOrder :: forall a. Ord a => a -> a -> a
mod_ :: forall a b c r. Arith a b c r => a -> b -> c
mul :: forall a b c r. Arith a b c r => a -> b -> c
multiply :: forall a. HasMultiply a => a -> a -> a
new1 :: forall b a1 o. o -> a1 -> b
oneShotChange :: forall tau p au. OneShotChange tau p au => tau -> p -> au
or :: forall a. HasOr a => a -> a -> a
or :: forall a b r. LogicalMatcher a b r => a -> b -> r
or :: forall a. Bitwise a => a -> a -> a
orderBy :: forall f q sql. ToOrderBy f q => Resume q (OrderBy f E) sql => f -> q -> sql
ORDER BY statement
perform :: forall a o op. SymbioteOperation a o op => op -> a -> o
plus :: forall a b. Summable a b => a -> b -> a
plus :: forall a b. Summable a b => a -> b -> a
pow :: forall a b c r. Arith a b c r => a -> b -> c
power :: forall a. HasPower a => a -> a -> a
property :: forall c b a. a -> b -> c
provide :: forall result a. a -> (Ask a => result) -> result
Provide an implicit parameter to a computation which requires it
queryReturnsImpl :: forall schema query returns. QueryReturns schema query returns => schema -> query -> returns
Do not use this. Use queryReturns
instead. Only exported due to compiler restrictions
remainder :: forall a. HasRemainder a => a -> a -> a
resume :: forall a b c. Resume a b c => a -> b -> c
returning :: forall f q sql. ToReturning f q => Resume q (Returning f) sql => f -> q -> sql
rotate :: forall input tail output. ArgsRotater input tail output => input -> tail -> output
scale :: forall a. Space a => a -> (a -> a)
scoped :: forall f output mod. Scoped f output => mod -> f -> output
sub :: forall a b c r. Arith a b c r => a -> b -> c
subtract :: forall a. HasSubtract a => a -> a -> a
transform :: forall function return constructor. EtaConversionTransformer function return constructor => constructor -> function -> return
transformFlipped :: forall function return constructor. EtaConversionTransformer function return constructor => function -> constructor -> return
transformWith :: forall function return constructor. WithInputEtaConversionTransformer function return constructor => constructor -> function -> return
transformWithFlipped :: forall function return constructor. WithInputEtaConversionTransformer function return constructor => function -> constructor -> return
tupleRev :: forall t1 acc t2. TupleRev t1 acc t2 => t1 -> acc -> t2
unionObject :: forall from to. ObjectUnion from to => from -> to -> to
unsafeAdd :: forall a b c. a -> b -> c
unsafeDiv :: forall a b c. a -> b -> c
unsafeMod :: forall a b c. a -> b -> c
unsafeMul :: forall a b c. a -> b -> c
unsafePow :: forall a b c. a -> b -> c
unsafeSub :: forall a b c. a -> b -> c