• Junichi Nakata (15/15) Aug 26 2015 Hi, all.
• Alex Parrill (4/19) Aug 26 2015 Note that mmap-ing a zero-length range is invalid on Linux. Dunno
• rsw0x (2/26) Aug 26 2015 https://issues.dlang.org/show_bug.cgi?id=14968
• Junichi Nakata (7/35) Aug 26 2015 From OS X 10.10.3 manage on mmap:
• Vladimir Panteleev (7/8) Sep 01 2015 The segfault is because of:

"Junichi Nakata" <nakata sb.ecei.tohoku.ac.jp> writes:

Hi, all.
I have a question.
When 'testdic' file does' t exist, something  wrong.

---
import std.mmFile;

int main() {
   auto x = new MmFile("testdic",MmFile.Mode.readWrite,0,null);
   return 0;
}

---
OSX 10.10.3 ,
DMD64 D Compiler v2.069-devel-d0327d9

After testdic file (size=0) was made, Segmentation Fault: 11 .

I don't know whether this code is typical use.
Is this Phobos BUG? or BY DESIGN?

"Alex Parrill" <initrd.gz gmail.com> writes:

On Wednesday, 26 August 2015 at 15:49:23 UTC, Junichi Nakata 
wrote:
 Hi, all.
 I have a question.
 When 'testdic' file does' t exist, something  wrong.

 ---
 import std.mmFile;

 int main() {
   auto x = new MmFile("testdic",MmFile.Mode.readWrite,0,null);
   return 0;
 }

 ---
 OSX 10.10.3 ,
 DMD64 D Compiler v2.069-devel-d0327d9

 After testdic file (size=0) was made, Segmentation Fault: 11 .

 I don't know whether this code is typical use.
 Is this Phobos BUG? or BY DESIGN?

Note that mmap-ing a zero-length range is invalid on Linux. Dunno 
about OSX; it shouldn't segfault though.

"rsw0x" <anonymous anonymous.com> writes:

On Wednesday, 26 August 2015 at 17:30:29 UTC, Alex Parrill wrote:
 On Wednesday, 26 August 2015 at 15:49:23 UTC, Junichi Nakata 
 wrote:
 Hi, all.
 I have a question.
 When 'testdic' file does' t exist, something  wrong.

 ---
 import std.mmFile;

 int main() {
   auto x = new MmFile("testdic",MmFile.Mode.readWrite,0,null);
   return 0;
 }

 ---
 OSX 10.10.3 ,
 DMD64 D Compiler v2.069-devel-d0327d9

 After testdic file (size=0) was made, Segmentation Fault: 11 .

 I don't know whether this code is typical use.
 Is this Phobos BUG? or BY DESIGN?

 Note that mmap-ing a zero-length range is invalid on Linux. 
 Dunno about OSX; it shouldn't segfault though.

https://issues.dlang.org/show_bug.cgi?id=14968

"Junichi Nakata" <nakata sb.ecei.tohoku.ac.jp> writes:

On Wednesday, 26 August 2015 at 22:07:01 UTC, rsw0x wrote:
 On Wednesday, 26 August 2015 at 17:30:29 UTC, Alex Parrill 
 wrote:
 On Wednesday, 26 August 2015 at 15:49:23 UTC, Junichi Nakata 
 wrote:
 Hi, all.
 I have a question.
 When 'testdic' file does' t exist, something  wrong.

 ---
 import std.mmFile;

 int main() {
   auto x = new MmFile("testdic",MmFile.Mode.readWrite,0,null);
   return 0;
 }

 ---
 OSX 10.10.3 ,
 DMD64 D Compiler v2.069-devel-d0327d9

 After testdic file (size=0) was made, Segmentation Fault: 11 .

 I don't know whether this code is typical use.
 Is this Phobos BUG? or BY DESIGN?

 Note that mmap-ing a zero-length range is invalid on Linux. 
 Dunno about OSX; it shouldn't segfault though.

 

 From OS X 10.10.3 manage on mmap:

ERRORS
...
[EINVAL]           The len argument was negative.

append to https://issues.dlang.org/show_bug.cgi?id=14968

thanks.

"Vladimir Panteleev" <thecybershadow.lists gmail.com> writes:

On Wednesday, 26 August 2015 at 17:30:29 UTC, Alex Parrill wrote:
 it shouldn't segfault though.

The segfault is because of:

https://issues.dlang.org/show_bug.cgi?id=14993

It "should've" been an InvalidMemoryOperationError, which in turn 
was caused by:

https://issues.dlang.org/show_bug.cgi?id=14994
https://issues.dlang.org/show_bug.cgi?id=14995