[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Octave-bug-tracker] [bug #31085] fopen(f,'wz') broken ?
From: |
Alois Schlögl |
Subject: |
[Octave-bug-tracker] [bug #31085] fopen(f,'wz') broken ? |
Date: |
Mon, 20 Sep 2010 15:33:25 +0000 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100825 Ubuntu/10.04 (lucid) Firefox/3.6.9 |
URL:
<http://savannah.gnu.org/bugs/?31085>
Summary: fopen(f,'wz') broken ?
Project: GNU Octave
Submitted by: schloegl
Submitted on: Mon 20 Sep 2010 03:33:24 PM GMT
Category: None
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: None
Status: None
Assigned to: None
Originator Name:
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release: dev
Operating System: GNU/Linux
_______________________________________________________
Details:
The documentation of fopen() says:
" ...
Additionally, you may append a "z" to the mode string to open a
gzipped file for reading or writing. For this to be successful, you
must also open the file in binary mode.
...
"
This feature seems to be broken:
fid = fopen('/tmp/t2.gz','wbz')
fwrite(fid,32+ceil(rand(1000,1)*64),'uint8');
fclose(fid);
results in an
fid = -1
thus, fwrite and fclose do not work. However, a file /tmp/t2.gz with 20 bytes
is generated.
This can be observed (ubuntu 10.04, x86_64) with Octave 3.2, and on the
latest development 3.3.52+ (built about 7 days ago).
config.log contains (besides others) this
configure:29200: checking zlib.h usability
configure:29200: gcc -c -g -O2 -pthread conftest.c >&5
configure:29200: $? = 0
configure:29200: result: yes
configure:29200: checking zlib.h presence
configure:29200: gcc -E conftest.c
configure:29200: $? = 0
configure:29200: result: yes
configure:29200: checking for zlib.h
configure:29200: result: yes
configure:29216: checking for gzclearerr in -lz
configure:29244: gcc -o conftest -g -O2 -pthread conftest.c -lz -lm
>&5
configure:29244: $? = 0
configure:29249: result: yes
and this
Z CPPFLAGS:
Z LDFLAGS:
Z libraries: -lz
Therefore, I assume zlib is correctly included.
Alois
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?31085>
_______________________________________________
Message sent via/by Savannah
http://savannah.gnu.org/
- [Octave-bug-tracker] [bug #31085] fopen(f,'wz') broken ?,
Alois Schlögl <=