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
	...

1/22    looking to buy a new development laptop
        needs ssdrive, >6 hr possible batt life, and runs linux reasonably
        Anyone have a recommendation? Thx.
        \_ thinkpad t23 w ssdrive and battery inplace of drive bay
        \_ Ever wondered what RICHARD STALLMAN uses for a laptop?  Well,
           wonder no more!
	...

8/31    I'm trying to learn ActionScript, like a step by step tutorial.
        The site at http://www.actionscript.org/resources/categories/Tutorials/Flash/Beginner
        isn't well organized. It doesn't explain how to get started with
        an editor, compiler, IDE. And should I even learn AS2 when you can
        learn AS3? Is Adobe Flash CS4 >>> CS3 or just CS4 > CS3?
	...

2/28    I'm looking for a recommendation of a compiler/IDE to use to
        develop C/C++ code under Linux. In school, we used jove/gcc and
        I still use emacs/vi and gcc to this day. However, it is really
        lacking. Under Windows I tried Visual Studio and there were some
        really nice things about it, although it was so overwhelming that
        after 6 months of occasional use I still didn't really know what I
	...

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
	...

5/2     How do I get the L1/L2 cache size and cache line size on my machine?
        Can I find this stuff out at compile time somehow?
        \_ You aren't planning on running your code on any other processors?
        \_ May I ask what it is you want to achieve ultimately? If you don't
           know your architecture and want to find out dynamically, there are
           tools that can peek/poke to give you definitive answers, plus you get
	...

4/2     Is there an interpreted version of C or C++ that can be used for
        educational purposes? It doesn't have to be full-featured or
        strictly adhere to the standards, but it's painful for students
        to change a variable in a for loop and then wait for a compile
        to see how it changes the result. Something really lightweight
        would encourage them to play around a lot more and learn more in
	...

11/29   From the CSUA minutes:
        - Next Gen Console
        -- If we have $1800 in our accounts, should we buy a console:
           4 votes passes.
        -- Console voting: 2 votes each, neither passes
           * 360 = 600, more games
	...

11/27   I'm using select to do a nonblocking check to see if a single socket
        has anything to read off it.  Problem is, I can have up to 12228
        file descriptors, and Linux fd_set only supports up to 4096.  Any idea
        what I can do about this?  (Or a better solution?) -jrleek
        \- 1. who are you
           2. i am busy this week and you didnt mention language
	...

11/10   Is there anyway to get C/C++ compilers to automatically compile
        different code for different processors?  I'd like to be able to
        say something like:
          #if defined X86 ...
          #elif defined SPARC ...
          #else ...
	...