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Aug 13th, 2005, 11:57 AM
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#1 |
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Newbie
Join Date: Aug 2005
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cpp problems
hi,
im new to the forum...i just had to clear some doubts, relating to cpp.firstly i hd to ask how to find the ram address of a given variable that has been declared. secondly i wld like to know if it is possible to read thread or process ids using cpp. lastly, i wld like to ask if it ws possible to record sound using cpp...n if so...to calc noise levels. thts just abt it thnx |
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Aug 13th, 2005, 12:40 PM
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#2 |
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Hobbyist Programmer
Join Date: Jul 2005
Location: Oman
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if u want to see the ram address use this code
[code] int main() { int x; cout << &x << endl; return 0; } don't forget the & before 'x'. PS i am a newbie too and am not sure...just trying to help
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From the bottom of the stone steps... ...i'm calling still. |
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Aug 13th, 2005, 2:22 PM
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#3 |
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Programmer
Join Date: Jul 2005
Location: Germany
Posts: 69
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Hi,
all of the things you've asked can be accomplished using c++ and the apropriate APIs from within.
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-= C makes it easy to shoot yourself in the foot; C++ makes it harder, but when you do succeed, you will blow away your whole leg. =- Bjarne Stroustrup |
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Aug 13th, 2005, 11:25 PM
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#4 |
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Programming Guru
 
Join Date: Jun 2005
Location: Adelaide, South Australia
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Getting the address of a variable is simple: append an ampersand. The result is a pointer (the value of the pointer is the address).
Topics like multithreading (and hence threads) are formally beyond the C++ standard. However, practically, it is possible to work with threads using system specific APIs (eg the win32 API under windows, POSIX under [several] forms of unix). Similar answer for interacting with particular devices (eg sound cards, etc). |
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Aug 14th, 2005, 2:57 AM
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#5 |
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Professional Programmer
Join Date: Apr 2005
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I don't want to sound like a roaming asshole, but this is a forum, not a chat room. Your post is hard for me to read, nobrains.
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% rc4 hexkey < input > output
#define S ,t=s[i],s[i]=s[j],s[j]=t /* rc4 hexkey <file */
unsigned char k[256],s[256],i,j,t;main(c,v,e)char**v;{++v;while(++i)s[
i]=i;for(c=0;*(*v)++;k[c++]=e)sscanf((*v)++-1,"%2x",&e);while(j+=s[i]
+k[i%c]S,++i);for(j=0;c=~getchar();putchar(~c^s[t+=s[i]]))j+=s[++i]S;} |
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Aug 14th, 2005, 3:16 AM
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#6 | |
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Professional Programmer
Join Date: May 2005
Location: Bad Nauheim, Germany
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Quote:
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-Steven "Is this a piece of your brain?" - Basil Fawlty |
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Aug 14th, 2005, 4:07 AM
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#7 |
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Newbie
Join Date: Aug 2005
Posts: 6
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gr8...the ram addr part wrkd...now i have to do the sound and the thread id part
its a serious pain in the ass since i have no experience in api s ...cn nybdy help me there// |
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Aug 14th, 2005, 4:12 AM
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#8 |
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Newbie
Join Date: Aug 2005
Posts: 6
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ummm...sorry for the lingo guys...i was not aware that you people are not comfortable with it...
i wont resort to it again...i agree it makes the forum look a little sluggish... so i wont do it again... |
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Aug 14th, 2005, 6:24 AM
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#9 |
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I eat cake for breakfast.
Join Date: Jul 2004
Location: In my box.
Posts: 4,434
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Wow. A newbie who realises that sometimes other people know best. They're a rare breed. I commend you, nobrains. Good luck with the project.
By the way, you can find out more on this topic by learning about pointers. DaWei wrote a pretty good tutorial on pointers you can find at http://www.daweidesigns.com/pointers.php. |
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Aug 14th, 2005, 11:13 AM
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#10 |
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Newbie
Join Date: Aug 2005
Posts: 6
Rep Power: 0
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yeah...i do sticik to other's advice at times...i have this habit.
by the way...being called a newbie is not exactly what everybody loves..;p thanks fr your wishes for the project... i'm still looking fr help with apis... help me people... |
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