| 2014/1/14-2/5 [Computer/SW/Languages/C_Cplusplus] UID:54763 Activity:nil | 1/14 Why is NULL defined to be "0" in C++ instead of "((void *) 0)" like in
C? I have some overloaded functtions where one takes an integer
parameter and the other a pointer parameter. When I call it with
"NULL", the compiler matches it with the integer version instead of
the pointer version which is a problem. Other funny effect is that
sizeof(NULL) is different from sizeof(myPtr). Thanks.
...
|
| 2013/4/29-5/18 [Computer/SW/Languages/C_Cplusplus, Computer/SW/Compilers] UID:54665 Activity:nil | 4/29 Why were C and Java designed to require "break;" statements for a
"case" section to terminate rather than falling-through to the next
section? 99% of the time poeple want a "case" section to terminate.
In fact some compilers issue warning if there is no "break;" statement
in a "case" section. Why not just design the languages to have
termination as the default behavior, and provide a "fallthru;"
...
|
| 2012/7/19-11/7 [Computer/SW/Languages/C_Cplusplus] UID:54439 Activity:nil | 7/19 In C or C++, how do I write the code of a function with variable
number of parameters in order to pass the variable parameters to
another function that also has variable number of parameters? Thanks.
\_ The usual way (works on gcc 3.0+, Visual Studio 2005+):
#define foo(fmt, ...) printf(fmt, ##__VA_ARGS__)
The cool new way (works on gcc 4.3+):
...
|
| 2011/3/7-4/20 [Computer/SW/Languages/C_Cplusplus] UID:54056 Activity:nil | 3/7 I have a C question. I have the following source code in two identical
files t.c and t.cpp:
#include <stdlib.h>
int main(int argc, char *argv[]) {
const char * const * p1;
const char * * p2;
...
|
| 2011/2/5-19 [Computer/SW/Languages/C_Cplusplus] UID:54027 Activity:nil | 2/4 random C programming/linker fu question. If I have
int main() { printf("%s is at this adddr %p\n", "strlen", strlen); }
and soda's /proc/sys/kernel/randomize_va_space is 2 (eg; on)
why is strlen (or any other libc fn) at the same address every time?
\_ I don't pretend to actually know the right answer to this, but
could it have something to do with shared libraries?
...
|
| 2010/2/12-3/9 [Computer/SW/Languages/C_Cplusplus] UID:53708 Activity:nil | 2/12 I need a way to make a really big C++ executable (~200MBs) that does
nothing. No static initialization either. Any ideas?
\_ static link in lots of libraries?
\_ #define a i=0; i=0; i=0; i=0; i=0; i=0; i=0; i=0; i=0; i=0;
#define b a a a a a a a a a a
#define c b b b b b b b b b b
...
|
| 2009/8/7-14 [Computer/SW/Languages/C_Cplusplus, Computer/SW/Languages/Java] UID:53252 Activity:high | 8/6 In C one can do "typedef int my_index_t;". What's the equivalent in
C#? Thanks.
\_ C#? Are you serious? Is this what the class of 2009 learn?
\_ No. I have to learn .NET code at work. I am Class of '93.
\_ python is what 2009 learns, see the motd thread about recent
cal courses and languages
...
|
| 2009/7/21-24 [Computer/SW/Languages/Java] UID:53168 Activity:moderate | 7/20 For those who care btw, it looks like eclipse is now A Standard Tool
at UCB ugrad cs, probably replaced emacs. Furthermore, people get
angry at seeing Makefiles, (since eclispe takes care of that). I
guess it's just a sign of the times.
\_ The more people at my work use eclipse the less the code is
managable in emacs. I'm not sure which application's fault
...
|
| 2008/6/25-7/14 [Computer/SW/Security] UID:50380 Activity:nil | 6/25 some XCF or CSUA person had a web page about a project they were
working on where I set up a machine, and you set up a machine
somewhere, and they both passively back each other, i believe with
an encryption key so i can't read your backups. when your disk
catches on fire, i just give you a copy of your data. anyone remember
the name of this?
...
|
| 2008/4/21-5/2 [Computer/SW/Security] UID:49787 Activity:nil | 4/21 Yahoo Instant Messenger is not encrypted. Are there chat programs
that are a bit more secure than YIM?
\_ what OS are you using?
\_ What are your goals? Corporate security, or preventing your wife
from eavesdropping on you? If you're using IM for internal company
communication, you shouldn't be using anything where you don't
...
|
| 2006/10/27-30 [Computer/SW/Security] UID:45013 Activity:low | 10/27 Anybody tried the "PDF decryptor" or "PDF password delete" type of
software? I have a PDF form file that won't let me save. I'm
considering getting one of those type of software to unlock the
file. I really don't want to pay to try it out though. Are there
free open source PDF unlock programs? Thanks.
\_ I've used Elcomsoft's (of "Free Dmitry Sklyarov!" fame) PDF
...
|
| 2006/8/22-23 [Computer/SW/Security] UID:44096 Activity:high | 8/22 In Windoze XP, how can I make my service start automatically when it
boots up in Safe Mode? I searched MSDN site and didn't see anything.
Thanks.
\_ I don't know how to do that in Windoze XP but it isn't that hard in
Windows XP.
\_ And that would be how? Thx.
...
|
| 2006/8/12-14 [Computer/SW/Security] UID:43984 Activity:nil | 8/12 Anybody know of a good backup solution for PGP encrypted disks?
The way I've been backing up is to make copies of the .pgd file
with dates in the filename. This method is not very scalable as my
.pgd files are becoming gigabytes in size. Anybody know
of an integrated solution to backups and encrypted folders/disks?
OS X Leopard "time machine" backup feature looks interesting. But
...
|
| 2006/8/1-6 [Computer/HW/Memory] UID:43855 Activity:nil | 8/1 I'm looking for a 1GB and a 2GB USB flash drive.
All the reviews I've seen on amazon seem to be very mixed.
I'd like something rugged, simple, fast, and reliable.
Any suggestions? Thanks
\_ I like the Kingston DataTraveler Elite 2GB. I backup my pr0n to the
the encrypted partition, it's fast, and it's reliable. Other flash
...
|
|
http://csua.com/feed/