comp.lang.c++ Google Group

Re: Who gets higher salary a Java Programmer or a C++ Programmer?

no...@lewscanon.com (Lew) — Tue, 02 ديسمبر 2008 01:10:58 UT

"Opposing" with respect to what?

Re: Who gets higher salary a Java Programmer or a C++ Programmer?

no...@lewscanon.com (Lew) — Tue, 02 ديسمبر 2008 01:10:12 UT

Information entropy is a well-established principle since Shannon, and is core
to computer science (pun intended).

Re: C++ Primer 4th edition

wbarn...@optonline.net (Wally Barnes) — Tue, 02 ديسمبر 2008 00:26:22 UT

amit wrote:
I've always been partial to "How to Program C++" by Dietel & Dietel
especially if you've had C exposure.
-Wally

Re: map of map.

s.senthil...@gmail.com (Senthil) — Mon, 01 ديسمبر 2008 23:55:29 UT

<snip>
Hard to note if you are new, you need the the space between the two
'>'.
<snip>

Re: map of map.

ha...@sbox.tugraz.at (Christian Hackl) — Mon, 01 ديسمبر 2008 23:54:05 UT

aTuL ha scritto:
On second thought, the >> is probably not the cause of this particular
error. Have you included <map> and is there a using std::map somewhere?
Here's a minimal example that compiles fine:
int main()
{
std::map<int, std::map<short, short> > mpObj;

Re: binary format of the number.

blargg....@gishpuppy.com (blargg) — Mon, 01 ديسمبر 2008 23:49:21 UT

So you want it to support grouped binary values? What would be the format,
something like this?
0b00000011_11000000_00000000_0 0000000
Whenever I deal with hardware or other systems using bitmasks, I define
the mask constants once, then use bitwise operators to combine them. And
when defining them, I'd use 1 shifted left by the bit number, not a hex

Re: map of map.

ha...@sbox.tugraz.at (Christian Hackl) — Mon, 01 ديسمبر 2008 23:44:07 UT

aTuL ha scritto:
You have to write it like this:
map<int, map<short, short> > mpObj;
Note that the next version of C++ will fix this problem.

Re: binary format of the number.

j...@mail.fiawol.org (J. Cochran) — Mon, 01 ديسمبر 2008 23:39:01 UT

In article <492ee0d4$0$90269$14726...@new s.sunsite.dk>,
Nope. Not in the language.
But if you're willing to take the runtime hit, see about using the
strtoul() function. And maybe wrap it up in a template or macro so you
don't have to specify the base.

map of map.

atulskulka...@gmail.com (aTuL) — Mon, 01 ديسمبر 2008 23:26:07 UT

Hi All,
I want to create a map of key and another map object (it is another
map of key value pairs). I have declared it as
map<int, map<short, short>> mpObj; it gives me an error that, "error:
ISO C++ forbids declaration of ‘map’ with no type". Does this mean I
can not create a map of a map the object? Have I done something wrong?

Re: binary format of the number.

jl_p...@hotmail.com — Mon, 01 ديسمبر 2008 22:47:46 UT

No way that I know of in C/C++, but for the record, it can be done
in Perl this way:
0b1000110
or even:
0b0100_0110
(I know this is slightly off-topic, but I thought it worth
mentioning.)
(In case you're wondering, Perl allows the '_' character to be
interspersed in a number, much like we use commas/periods to make big

Re: converting floating point types round off error ....

ramag...@t-online.de (Rolf Magnus) — Mon, 01 ديسمبر 2008 21:32:08 UT

The address is not illegal as a char*, but as a double*, it can be. On some
machines, some types have alignment requirements, like e.g. that a double
can only be at an address that is a multiple of sizeof(double). If you try
to dereference a pointer that doesn't meet this alignment requirement,
a CPU exception might be the result. On some other machines mis-aligned

Re: preprocessor question

spamt...@gmx.de (Hendrik Schober) — Mon, 01 ديسمبر 2008 20:57:45 UT

If this is so, and if this is just one file this appears in, you
could use the '__LINE__' macro. But Maxim's suggestion seems better.
Schobi

Re: what is the following type

mos...@anonymous.org (Mosfet) — Mon, 01 ديسمبر 2008 20:57:29 UT

Mosfet a écrit :
Hum actually I think it's a function type ... Someone to confirm ?

what is the following type

mos...@anonymous.org (Mosfet) — Mon, 01 ديسمبر 2008 20:55:25 UT

Hi,
I am looking at some source code and in one file there is the following
definition :
typedef enum _EXCEPTION_DISPOSITION {
ExceptionContinueExecution,
ExceptionContinueSearch,
ExceptionNestedException,
ExceptionCollidedUnwind,
ExceptionExecuteHandler
typedef EXCEPTION_DISPOSITION EXCEPTION_ROUTINE (

Re: converting floating point types round off error ....

forums...@hotmail.com — Mon, 01 ديسمبر 2008 20:19:54 UT

I hate to become a nuisance but do you have a source where I obtain
some more information on all this? I'm having a hard time
understanding how a char* address could be illegal.
OK! I sent a private message to the OP a few days ago to see if/how
he/she resolved this. He hasn't. The OP said he's seen a handful of