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.
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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;"
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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+):
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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;
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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?
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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
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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
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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
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2010/7/9-23 [Computer/SW/Virus, Computer/SW/OS/Windows] UID:53879 Activity:nil | 7/9 I'm adding a larger and faster HD to my XP machine, and I want
to move my installation to the new drive, can anyone recommend
a tool that can do this? I'd perfer somethng inexpensive as
it's a one time thing.
\_ There's a lot of software that does this, but Norton/Symantec Ghost
seems to be the standard and I have used it successfully many
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2010/4/28-5/10 [Computer/SW/OS/Windows] UID:53807 Activity:nil | 4/28 Win 3.1 was more widely adopted than Win 3.0. Win XP (5.1) was more
widely adopted than Win 2k (5.0). Now it looks like Win 7 (6.1) is
going to be more widely adopted than Vista (6.0). Is this a trend on
Microsoft x.0 versions being bad?
\_ duh.
\_ "more widely adopted" ... well... what are you basing these numbers
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2010/2/18-3/9 [Computer/SW/WWW/Browsers] UID:53713 Activity:nil | 2/18 Why is there now Firefox 3.5.8 when there was already 3.6 a month ago?
\_ Why is there Windows XP SP3 when there was already Vista?
Generally companies manage patches for at least two levels of
product. -tom
\_ I see. So Fx 3.6 is more like a new version than an update to
3.5.x. --- OP
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2009/8/4-13 [Computer/SW/OS/Windows] UID:53239 Activity:kinda low | 8/3 VMWare + Windows XP + Validation question. I need to test stuff with
Service Pack 3 installed. I have a valid key that I own (yeah yeah I
actually *bought* a copy, please don't flame me for supporting evil
M$). Is it possible to register the key once, and then duplicate it
for testing purposes? Will Windows or Microsoft detect copies and
disable the rest the copies?
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2009/6/1-3 [Computer/HW/CPU] UID:53068 Activity:high | 5/31 History of winners and losers by *popularity*:
VHS > Beta Max
USB2 > Firewire
x86 > PowerPC > Everything Else > DEC Alpha > Itanium
BlueRay > HDDvd
\_ It's too early to tell RE: "Blue"Ray. They may both turn out to be
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2009/2/20-25 [Computer/SW/OS/Windows] UID:52610 Activity:nil | 2/20 I'm using Cygwin/X on XP. All the X indows (xterm, emacs)
seem to have a keyboard repeat rate and a repeat delay that's different
than the one XP uses for other Windows apps. When I do "mode con
rate=xx delay=yy", it only changes Windows apps but not the X apps.
How do I change the keyboard repeat rate and delay for X? Thanks.
\_ man xset
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2008/11/29-12/6 [Computer/SW/OS/FreeBSD, Computer/SW/OS/VM] UID:52129 Activity:moderate | 11/29 I'm experimenting with virtualization, and as a poor college student
I'm wondering what the best alternatives for virtualization are, and
how best to cut my teeth on messing with non-linux platforms (or I
guess interesting stuff on Linux would work too). Right now I've got
FreeBSD7 running on KVM on my home computer (on a Core 2 Quad), and am
somewhat at a loss as to how to use it. (More details: bridged
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2008/11/15-26 [Computer/SW/OS/Windows] UID:51993 Activity:nil | 11/14 I have a bunch of pictures and I find that thumbs.db on
Windows XP to be very useful, especially when you're on NAS
and the network is slow. Having that said, my Win XP has
stopped generating thumbs.db even though I've set it to generate
thumbs.db (Properties->View->Uncheck "Do not cache thumbnails.").
How do I force Windows to generate Thumbs.db? Googling seems
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2008/10/12 [Computer/SW/OS/Windows] UID:51487 Activity:nil | 10/12 When XP boots up on my PC, the screen reads "Microsoft (R) Windows (R)
5.01. 2600 Service Pack 3 Multiprocessor Free." What does "Free" mean?
Thx.
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2008/9/22-29 [Computer/SW/OS/OsX] UID:51261 Activity:nil | 9/21 So I did it and got myself a Macbook Pro. Any suggestions for the best
PC->Mac transition? After finding out that Outlook is not supported
under Mac; I bought parallels and am installing XP to grab my outlook
mail archive (~1GB) from the original PC disk (the pc itself is
basically dead). Any suggestions on a relatively painless import to
entourage? The Mac Genius guy also reccomended an upgrade to 4GB and
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