longjmp crashes on Windows

[Piotr Podsiadły]

Hello,

I'm trying to use setjmp and longjmp on Windows with DMD compiler 
(version 2.064). When compiled as 64-bit application, it works, 
but 32-bit version crashes inside longjmp. What should be changed 
to get it to work?

I tried changing value of _JBLEN for x86 to some bigger number 
(like 1024), but it crashes too.

Code:

import std.stdio;

version(Windows)
{
        version(X86)
                enum _JBLEN = 64;
        else version(X86_64)
                enum _JBLEN = 256;
        else version(IA64)
                enum _JBLEN = 528;
        
        alias ubyte[_JBLEN] jmp_buf;

        extern(C)
        {
                int _setjmp(ref jmp_buf _Buf);
                void longjmp(ref jmp_buf _Buf, int _Value);
        }
        
        alias _setjmp setjmp;
}

void main()
{
        jmp_buf env;
        uint i;
        if(setjmp(env) < 3)
        {
                writeln("ping");
                longjmp(env, ++i);
        }
        writeln("done");
}

Call stack:

c:\Users\vbox\Documents\test>test.exe
ping
object.Error: Access Violation
----------------
0x00423F78 in _local_unwind
0x004214D0 in longjmp
0x0040B300 in void rt.dmain2._d_run_main(int, char**, extern (C) 
int function(char[][])*).runAll().void __lambda1()
0x0040B2D3 in void rt.dmain2._d_run_main(int, char**, extern (C) 
int function(char[][])*).runAll()
0x0040B1EB in _d_run_main
0x0040B018 in main
0x0042142D in mainCRTStartup
0x754F3677 in BaseThreadInitThunk
0x77959F42 in RtlInitializeExceptionChain
0x77959F15 in RtlInitializeExceptionChain
----------------