c++.beta - 8.38.4: crash with qsort()
- Detlef Riekenberg (50/50) Nov 13 2003 Hi.
- Walter (3/53) Nov 13 2003 I could use a small test case source. -Walter
Hi.
While testing my Code with various Compiler, the DMC-Compiled Win32-EXE
crashed during qsort(). (No Problems with OW 1.2_W32, GCC 3.2.2_RedHat9)
The Array (of int) is allocated dynamic. Size is incremended on demand.
The Array is filled with from (int)1 upto numitems.
9437182 Items: Sort OK.
9437183: Crash during qsort().
Mixed mode (example with 10 Items: 6,7,8,9,10,1,2,3,4,5) does work with
12341234 Items but crashed with 20482048.
(I have not tested the switching Count.)
The Optimizer is already deactivated:
dmc.exe -c -w- -3 -f slist.c
Hm. Just locking at the Output: 9437183 is 0x008fffff !
-------------- cut -----------------
V:\src\test>slist -v 9437183
firstarg=2 argc=3
2. argument: 9437183
verbose: 2
count: 9437183 startsize: 2359295 increment: 147455
mixed: FALSE reverse: FALSE
use_bubblesort: FALSE use_qsort: FALSE use_xsort: FALSE
sizeof(struct SLIST)=28 sizeof(test)=4 count=9437183
0x007A2674 test (empty)
0x007A2674.data 0x007D0010 (0x007A69CC) (0x00000000) (0x00000000)
0x007A2674.actual 0 (data[0]=0x007A69CC = 8022476)
0x007A2674.used 0
0x007A2674.total 2359295 (increment=147455)
0x007A2674 test (created)
0x007A2674.data 0x07EC0010 (0x00000001) (0x00000002) (0x00000003)
0x007A2674.actual 9437182 (data[9437182]=0x008FFFFF = 9437183)
0x007A2674.used 9437183
0x007A2674.total 9584590 (increment=147455)
first: 0x1 = 1
last: 0x8fffff = 9437183
0x007A2674 test first() + last()
0x007A2674.data 0x07EC0010 (0x00000001) (0x00000002) (0x00000003)
0x007A2674.actual 9437182 (data[9437182]=0x008FFFFF = 9437183)
0x007A2674.used 9437183
0x007A2674.total 9584590 (increment=147455)
sorting 0x07EC0010 -> 0x0A2C0008 (9437183 Items). sizeof(lptr) = 4
CRASH !!
------------------ CUT !!! -----------------
Any Ideas ?
If you want the Source, Send me a Mail.
PS: Sorry for my ugly English.
--
By by ...
... Detlef Riekenberg "driekenberg at web.de"
DSL/ISDN-Router + Firewall: ("www.fli4l.de")
Only 20 Watt: p1-133/48MB (IBM + AVM-DSL) mit FLi4L 2.1.4
Nov 13 2003
"Walter" <walter digitalmars.com>
I could use a small test case source. -Walter
"Detlef Riekenberg" <driekenberg web.de> wrote in message
news:bp12ep$24gn$1 digitaldaemon.com...
Hi.
While testing my Code with various Compiler, the DMC-Compiled Win32-EXE
crashed during qsort(). (No Problems with OW 1.2_W32, GCC 3.2.2_RedHat9)
The Array (of int) is allocated dynamic. Size is incremended on demand.
The Array is filled with from (int)1 upto numitems.
9437182 Items: Sort OK.
9437183: Crash during qsort().
Mixed mode (example with 10 Items: 6,7,8,9,10,1,2,3,4,5) does work with
12341234 Items but crashed with 20482048.
(I have not tested the switching Count.)
The Optimizer is already deactivated:
dmc.exe -c -w- -3 -f slist.c
Hm. Just locking at the Output: 9437183 is 0x008fffff !
-------------- cut -----------------
V:\src\test>slist -v 9437183
firstarg=2 argc=3
2. argument: 9437183
verbose: 2
count: 9437183 startsize: 2359295 increment: 147455
mixed: FALSE reverse: FALSE
use_bubblesort: FALSE use_qsort: FALSE use_xsort: FALSE
sizeof(struct SLIST)=28 sizeof(test)=4 count=9437183
0x007A2674 test (empty)
0x007A2674.data 0x007D0010 (0x007A69CC) (0x00000000) (0x00000000)
0x007A2674.actual 0 (data[0]=0x007A69CC = 8022476)
0x007A2674.used 0
0x007A2674.total 2359295 (increment=147455)
0x007A2674 test (created)
0x007A2674.data 0x07EC0010 (0x00000001) (0x00000002) (0x00000003)
0x007A2674.actual 9437182 (data[9437182]=0x008FFFFF = 9437183)
0x007A2674.used 9437183
0x007A2674.total 9584590 (increment=147455)
first: 0x1 = 1
last: 0x8fffff = 9437183
0x007A2674 test first() + last()
0x007A2674.data 0x07EC0010 (0x00000001) (0x00000002) (0x00000003)
0x007A2674.actual 9437182 (data[9437182]=0x008FFFFF = 9437183)
0x007A2674.used 9437183
0x007A2674.total 9584590 (increment=147455)
sorting 0x07EC0010 -> 0x0A2C0008 (9437183 Items). sizeof(lptr) = 4
CRASH !!
------------------ CUT !!! -----------------
Any Ideas ?
If you want the Source, Send me a Mail.
PS: Sorry for my ugly English.
--
By by ...
... Detlef Riekenberg "driekenberg at web.de"
DSL/ISDN-Router + Firewall: ("www.fli4l.de")
Only 20 Watt: p1-133/48MB (IBM + AVM-DSL) mit FLi4L 2.1.4
Nov 13 2003