[Gambas-user] unsigned int datatype for external function

[Jussi Lahtinen]

As integer.


Jussi

On Sun, Jun 10, 2018 at 8:27 PM, Demosthenes Koptsis <demosthenesk at gmail.com
> wrote:

> i dont understand,
>
> i have an external function from libc and i see size_t as datatype.
>
> size_t is unsigned integer
>
> on function declaration what should i set for size_t, AS Integer or AS
> Long?
>
> for example i have this
>
> 'void setbuffer (FILE *stream, char *buf, size_t size)
> Public Extern setbuffer(stream As Pointer, buf As Pointer, size As
> Integer) 'FIXME size_t int or long?
>
> On 06/10/2018 07:45 PM, Jussi Lahtinen wrote:
>
> So, it's 32bit integer. Most likely the library reads only 32 bit from the
> memory, and thus "long" wont help you.
>
> Gambas integer reserves one bit for sign and thus returned values are not
> correctly displayed in Gambas side.
> However you can display them correctly by using binary representation.
>
>
> Jussi
>
> On Sun, Jun 10, 2018 at 6:38 PM, Demosthenes Koptsis <
> demosthenesk at gmail.com> wrote:
>
>> hello,
>>
>> i want to use an unsigned int in external function, which gambas datatype
>> should i use?
>>
>> Integer or Long?
>>
>> The range of values is 0 to 4,294,967,295
>>
>>
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