C / C++ / MFC

4-Feb-03 4:13

How can I make my MFC (statically linked) exe file occupy less space in disk? The minimum I've gotten is 2 Mb, but I've seen exe file (statically linked MFC) around 200 Kb.

Any ideas?

Thanks a lot.

RobJones4-Feb-03 4:36

RobJones

4-Feb-03 4:36

Are you building your exe in Release or Debug? Release will be much smaller than Debug mode...

Anonymous4-Feb-03 4:50

4-Feb-03 4:50

Will it still be statically linked?
How do I change it to release mode?

Thanks!

Anonymous4-Feb-03 4:55

4-Feb-03 4:55

Done! Thanks!
Geez! It wasn't that hard. Sorry fro asking such a newbie question.

Thanks a lot!

includeh104-Feb-03 5:40

includeh10

4-Feb-03 5:40

i see you are here for long with many questions, but u don't know release, unbelievable Confused | :confused:

!!!

includeh10

Anonymous4-Feb-03 5:45

4-Feb-03 5:45

Yeah! I'm self made in VC++, so I know many things while I don't know some basic stuff. Sorry.

includeh104-Feb-03 6:55

includeh10

4-Feb-03 6:55

no sorry for unknown.
u will be very successful soon.

includeh10

Anonymous5-Feb-03 22:37

5-Feb-03 22:37

Thanks a lot!
It's great to have the support of such wonderful people!

Nitron4-Feb-03 13:40

4-Feb-03 13:40

You should register and become part of the family! (unless you already are of course Roll eyes | :rolleyes:

)

would love it! Poke tongue | ;-P

- Nitron

"Those that say a task is impossible shouldn't interrupt the ones who are doing it." - Chinese Proverb

Anonymous5-Feb-03 22:37

first chance exception when stepping in

5-Feb-03 22:37

Thanks, I sure Will!

ns4-Feb-03 4:13

4-Feb-03 4:13

I have two breakpoints in two functions. I run to the first one, then to the second one. When it reaches the second brekapoint, if i scroll up the debug output window I see "first chance exception" . What is this and how do I handle it? How do I find out what is causing it? It doesnt crash....goes from bkpoint A to bkpint B, but spits out this exception note in the debug window...

Appreciate your help,
ns

Re: first chance exception when stepping in

Alvaro Mendez4-Feb-03 4:23

Alvaro Mendez

4-Feb-03 4:23

When you're at your first breakpoint, go to Debug/Exceptions. Scroll down to the last exception, select it, and click on "Stop always", then OK. This tells the debugger to break when the app throws a C++ exception (which is what a first chance exception is). Continue on to the next breakpoint and the debugger should stop as soon as the exception occurs.

You can also do this for other types of exception, such as Access Violations and Stack Overflows.

Regards,
Alvaro

All you need in this life is ignorance and confidence, and then success is sure. -- Mark Twain

terrific advice!

ns4-Feb-03 7:32

4-Feb-03 7:32

I did what you said, and though it stopped in diassembly (or is it assembly? Confused | :confused:

, I looked at the call stack and figured out the problem. It was soooo instructive. I thank you!!!

Appreciate your help,
ns

Re: terrific advice!

Alvaro Mendez4-Feb-03 8:25

Alvaro Mendez

4-Feb-03 8:25

Thanks for your appreciation. Smile | :)

Regards,
Alvaro

All you need in this life is ignorance and confidence, and then success is sure. -- Mark Twain

Bit Masking

Nitron4-Feb-03 3:59

4-Feb-03 3:59

How do I use "bit masking" to set individual bits in a word?

i.e. if I have:

0x00F0 = 0000 0000 1111 0000

and I want:

0000 0010 1111 0000 = 0x02F0
       -
       |- set only bit 9

What is the trick?

Thanx!

- Nitron

"Those that say a task is impossible shouldn't interrupt the ones who are doing it." - Chinese Proverb

HENDRIK R4-Feb-03 4:08

HENDRIK R

4-Feb-03 4:08

One possiblility:

WORD w = 0x00F0 | 0x0200;
Thus all you want to keep is set to 0, the rest gets an 1.

If you want to clear bits instead of setting them, use the & operator instead of the | and set everything to 0 you want to get cleared.

RChin4-Feb-03 4:14

RChin

4-Feb-03 4:14

To set particular sets of bits of data, you need to OR it to the target. So, in your example to set bit 9 = 0x200, you need to OR this with 0xF0:
0x200 OR 0xF0 = 0x2F0.

have a look at the excellent article:
http://www.codeproject.com/cpp/bitbashing.asp[^]

for more info.

Nitron4-Feb-03 4:20

4-Feb-03 4:20

RChin wrote:
have a look at the excellent article:
http://www.codeproject.com/cpp/bitbashing.asp[^]

Rose | [Rose]

Ahh yes... just what the doctor ordered! Big Grin | :-D

- Nitron

"Those that say a task is impossible shouldn't interrupt the ones who are doing it." - Chinese Proverb

Brian Delahunty4-Feb-03 6:26

Brian Delahunty

4-Feb-03 6:26

Nitron wrote:
just what the doctor ordered!

A Doctor ordered you to learn about bit masking WTF | :WTF:

Regards,
Brian Dela Smile | :)

Run naked in the snow until you're sweating like a stuck pig and can't seem to catch your breath. When the flu becomes pneumonia, they can cure that with a shot. - Roger Wright

Nitron4-Feb-03 6:34

4-Feb-03 6:34

Brian Delahunty wrote:
A Doctor ordered you to learn about bit masking

um... Are you telling me your's hasn't?!?! OMG | :OMG:

- Nitron

"Those that say a task is impossible shouldn't interrupt the ones who are doing it." - Chinese Proverb

Alvaro Mendez4-Feb-03 4:15

Alvaro Mendez

4-Feb-03 4:15

The usual way is to do a bitwise "OR" of just the bit you want to set, which is 0x0200:

short result = 0x00F0 | 0x0200;

Notice that in this case "or"ing the values is equivalent to adding them together:

  Binary                 Hex       Dec
---------------------------------------
  0000 0000 1111 0000    0x00F0    240
+ 0000 0010 0000 0000    0x0200    512
= 0000 0010 1111 0000    0x02F0    752

Then to check if the bit is set, you do a bitwise "AND":

bool bitIsSet = (result & 0x0200) != 0;

Regards,
Alvaro

All you need in this life is ignorance and confidence, and then success is sure. -- Mark Twain

* THANKS *

Nitron4-Feb-03 4:22