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The module Int contains procedures operating on integers.
IsInt
{Int.is+X?B}
tests whether X is an integer.
IsNat
{Int.isNat+I?B}
tests whether I is a natural number, i. e., an integer greater than or equal to 0.
IsOdd
{Int.isOdd+I?B}
tests whether I is an odd integer.
IsEven
{Int.isEven+I?B}
tests whether I is an even integer.
div
{Int.'div'+I1+I2?I3}
returns I1 integer-divided by I2, rounding towards 0. Int.'div' can be defined as follows:
local
fun {Div I1 I2}
case I1 < I2 then 0 else 1 + {Div I1 - I2 I2} end
end
in
fun {Int.'div' I1 I2}
{Div {Abs I1} {Abs I2}} *
case I1 * I2 >= 0 then 1 else ~1 end
end
end
mod
{Int.'mod'+I1+I2?I3}
returns I1 modulo I2. Int.'mod' can be defined as follows:
fun {Int.'mod' I1 I2}
I1 - I2 * (I1 div I2)
end
IntToFloat
{Int.toFloat+I?F}
returns the float closest to the integer I.
IntToString
{Int.toString+I?S}
returns the string describing the integer I in Oz concrete syntax.
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