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.
	...

4/04    Is there a good way to diff 2 files that consist of columns of
        floating point numbers, such that it only tells me if there's a
        difference if the numbers on a given line differ by at least a given
        ratio?  Say, 1%?
        \_ Use Excel.
           1. Open foo.txt in Excel.  It should convert all numbers to cells in
	...

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;"
	...

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+):
	...

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;
	...

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?
	...

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
	...

9/28    http://www.tiobe.com/index.php/content/paperinfo/tpci/index.html
        Java is #1!!! Followed by C, PHP, C++, Visual Basic, Perl,
        C#, Python, Javascript, then finally Ruby. The good news is
        Pascal is going waaaay back up!
        \_ C is still more popular than C++?  I feel much better about myself
           now.
	...

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
	...

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
	...

10/1    google wave is a really fancy version of wall.  i can pipe
        giant ascii text files through it.  my dream has come true.
        does anyone remember when jwang made it so if you walled
        embedded html tags, it would appear in the csua lwall www page?
        google wave is a little better than that. - danh
        \_ http://www.techcrunch.com/2009/10/09/google-wave-is-easier-to-understand-than
	...

3/26    Anyone here uses Heritrix?  I'm trying to read the Intro document at
        http://crawler.archive.org/An%20Introduction%20to%20Heritrix.pdf but
        both Adobe Reader 8.1.3 (Win32) and gv 3.6.5 (cygwin) display error
        messages and show me blank pages.  Adobe displays:
        "Cannot extract the embedded font 'FTXWSG+TimesNewRomanMS'.  Some
        characters may not display or print correctly."
	...

6/8     CSUA code guru please help. I need to see my random number
        generator with a good seed (I just need random 18 bit
        identifiers). The usual time(NULL) is OK, except my program
        might be invoked faster than once a second, and seeding using
        time() produced the same result. I tried clock() but it seems
        to return 0. My program needs to be run in Linux/DOS (Watcom
	...

	...

10/29   Any tips on dealing with the usual nonsense-text-around-embedded-
        images spam?  I'm running postgrey + spamassassin, and it's catching
        about half of them...  -John
        \_ Are you running Razor2, Pyzor, and other services that contact
           a centralized spam repository to filter out even more spams?
           \_ No, I will be.  A gentleman and a scholar, thanks.  -John
	...

10/11   Are Windows CE, Windows Embedded, and Windows Mobile the same thing?
        They all sound like the Windows version for small devices.  Is it just
        a marketing thing to rename different versions of the same product?
        Thanks.
        \_ Windows CE is the generic term for Windows Mobile, which includes
           "Pocket PC" Edition, and the castrated  "Smartphone" edition.
	...

8/23    I've been primarily developing Java in Eclipse, but I need to do a
        project with embedded C++, and I'd like a better IDE than Emacs.  MS
        Visual Studio is way too windows-centric.  All I really need is
        something that can do context-assists and autocompletes and flagging of
        illegal syntax.  Suggestions?
        \_ Have you tried this: http://www.eclipse.org/cdt --oj
	...