[Gambas-user] unsigned int datatype for external function

[Demosthenes Koptsis]

so your advice is to use Integer not Long.

is this right?


On 06/10/2018 09:10 PM, Jussi Lahtinen wrote:
>
>     That means that the Gambas integer type is only 31 (+ 1) bits
>     wide. Not wide enough to hold a 32-bit unsigned integer if the
>     highest bit is reserved for the sign bit.
>
>     So then, if it is wide enough as you say, how would one manage a
>     32-bit unsigned integer in a 32-bit signed datatype?
>
>
> They both contain 32bits of information, unsigned or not. Signed 
> integer only means that the most significant bit is reserved for the sign.
> When the library reads the signed value, it ignores the original 
> meaning of the most significant bit, because it assumes it as unsigned.
>
>
> Jussi
>
>
>
>
>
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