longjmp crashes on Windows

[Xavier Bigand]

Le 16/11/2013 23:26, Rene Zwanenburg a écrit :
> On Saturday, 16 November 2013 at 16:22:17 UTC, Piotr Podsiadły wrote:
>> On Saturday, 16 November 2013 at 14:41:46 UTC, Maxim Fomin wrote:
>>> What kind of problem you try to solve by manual defining system data
>>> structures? Why not use platform independent valid declarations? Why
>>> did you decide that _JBLEN is 64, 256, 528 according to version? Why
>>> did you decide that having _JBLEN bytes filled with zeros is a valid
>>> value of jmp_buf object? Why should setjmp/longjmp take buffer by
>>> reference?
>>
>> I couldn't find these declarations for Windows in druntime (there is
>> only POSIX version).
>> Values of _JBLEN are based on constants from headers from DMC (x86
>> version) and Visual Studio (x86_64 and ia64).
>>
>> These are declarations copied from setjmp.h from DMC:
>>
>> #define _JBLEN 16
>> typedef int jmp_buf[_JBLEN];
>>
>> #define __CLIB    __cdecl
>> int __CLIB _setjmp(jmp_buf);
>> void __CLIB longjmp(jmp_buf,int);
>>
>> jmp_buf is initialized by the first call to setjmp, so its initial
>> value doesn't matter.
>> In C, arrays are alawys passed as a pointer - that's why I used ref.
>>
>>> Try to use proper version of setjmp/jmp_buf from druntime.
>>> By the way, why did you decide to use it in D language in a first place?
>>
>> I'm trying to use libpng and libjpeg directly from D, without any
>> wrappers.
>> These libraries use longjmp to handle errors (the only alternative is
>> to call exit() or abort()).
>
> As an alternative to those libraries, may I suggest using the DevIL
> binding in Derelict? It's quite easy to use:
>
> https://github.com/aldacron/Derelict3

Piotr Podsiadły help us to remove SDL_Image from DQuick. Our goal is to 
avoid big dependencies, to provide a light weight and easy to 
build/install library.
An other point is to simplify port to new platforms such as Smartphones 
OS, or any other embedded devices, video games consoles,...

It's important for "D" to support this kind of feature correctly.