Thank Ben.
2017-04-20 12:49 GMT+04:00 Ben Coman :
> Okay that helps a lot. You've done two things wrong.
>
> 1. You actually did
> ExternalStructure subclass: #MyStructure
> not
>FFIExternalStructure subclass: #MyStructure
>
> This is what caused the error, since if you compa
Okay that helps a lot. You've done two things wrong.
1. You actually did
ExternalStructure subclass: #MyStructure
not
FFIExternalStructure subclass: #MyStructure
This is what caused the error, since if you compare
the class-side methods (by clicking the button)
of ExternalStr
Hi Yuriy,
I guess you subclassed your class from the (wrong) class "ExternalStructure"
but in the
guide it is "FFIExternalStructure".
Make sure to accept in the browser:
FFIExternalStructure subclass: #MyStructure
instanceVariableNames: ''
classVariableNames: ''
package: 'FFID
I have recorded screencast abaut this my operations with Pharo.
https://drive.google.com/open?id=0B_0p5J9SNPlBOHduQlIxdHI0bk0
But sometimes I'm moved forvard to operations:
MyStructure rebuildFieldAccessors. -> DoIt -> Ok
myStruct := MyStructure externalNew. -> DoIt -> Ok
myStruct := id: 42. -
Hi Yuriy,
Hope I can help. I tried your example in build 60463 and its works fine.
So lets break it down.
On Wed, Apr 19, 2017 at 8:46 PM, Yuriy Babah
wrote:
> Hello everyone,
>
> I'm new to Pharo and have tried do example with structure in Unified FFI
> manual.
>
> FFIExternalStructure subcla
Hello everyone,
I'm new to Pharo and have tried do example with structure in Unified FFI
manual.
FFIExternalStructure subclass: #MyStructure
instanceVariableNames: ''
classVariableNames: ''
package: 'FFIDemo'
MyStructure class>>#fieldsDesc
^ #(
uint8 id;
char * struct_name;
uint name_length;
)
