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by: Ganesh Kundapur |
last post by:
Hi all,
suppose i have 100 functions such as f1, f2,...f100 in a single
file including main. If i pass arguement to main such as
$a.out f1
main should call appropriate functions. I can do this using switch
statement, but if i have 1000 functions, then i have to write 1000 cases
OR i can use pointer to functions. I am passing string to main, how to
map this string to function efficiently.
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by: hasho |
last post by:
Why is "call by address" faster than "call by value"?
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by: Adam Warner |
last post by:
Hello all,
I'm very new to C but I have a number of years of Common Lisp programming
experience. I'm trying to figure out ways of translating higher order
concepts such as closures into C. The code will not be idiomatic C.
GCC has an extension to ISO C that permits nested functions:
<http://gcc.gnu.org/onlinedocs/gcc/Nested-Functions.html>
For implementing closures they have a serious limitation:
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by: John Smith |
last post by:
I wrote some code in C in a dll which I would like to call from C#.
However I'm stuck because of the strongly typed behavior of C# which makes
limitations.
Here are the prototypes for two functions which I have trouble mapping:
int _SetOption(int nOption, void *pSetting);
void *_GetDataField(int nType, int *npLength);
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by: Mark Jerde |
last post by:
I need to call a Win32 DLL. The API supports both Windows and Linux, but
I'm only concerned with Windows. I'd like advice whether I can use C# or
whether I'll have to dust off my old C++ books. I would prefer to learn C#
rather than go back to C++.
The API starts with
#ifdef (WIN32)
#define MyAPI __stdcall
#else
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by: alexandre.braganti |
last post by:
Hello,
First sorry for my poor English, I am French ;-)
I've got a comprehension problem of what happend in one of the project
i'm working on.
Basically I've got a class gs_object than has got a VIRTUAL function
createList(). This createList() function is overloaded in another class
named ct_server that inherits gs_object.
in my code, it looks something like that :
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by: Mike S |
last post by:
I've seen examples of using the CallWindowProc Windows API function to
call functions through their addresses in VB6 -- a clever workaround to
emulate C-like function pointer semantics. A well-known example is the
use of CallWindowProc to call a function gotten via
LoadLibrary/GetProcAddress. For example, I've seen code similar to the
following which can register/unregister a COM DLL where the path to the
DLL is known only at runtime -- in...
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by: Felix Kater |
last post by:
Hi,
I can compile and run this code (see below) which twice calls the
function f, first with too less, second with too much arguments.
But is it legal and free of memory leaks and other problems? Of course,
I presume that inside f I don't access i in case it was called via g.
int f(int i){ /* ... */ return 0; }
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by: Allen |
last post by:
The arguments of function is variable. Given function address,
argument type and data,
how to dynamically call the function? The following is pseudo code.
int count = 0;
int offset = 0;
char buffer;
count = getcount(buffer, offset);
void* pfun = getmethod(buffer, offset);
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by: Rahul |
last post by:
Hi Everyone,
I have the following code and i'm able to invoke the destructor
explicitly but not the constructor. and i get a compile time error
when i invoke the constructor, why is this so?
class Trial
{
public: Trial()
{
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
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|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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