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by: Mark P |
last post by:
Some time ago I posted here about inserting into a set with a hint:
http://groups-beta.google.com/group/alt.comp.lang.learn.c-c++/browse_thread/thread/fb75b00f73e979db/018b8d0eadb38dbf?q=%22STL+insert+with+hint%22+%22Mark+P%22&rnum=1&hl=en#018b8d0eadb38dbf
I quoted the SGI STL docs describing a.insert(p, t), where p is the hint
iterator and t is the inserted object:
"Insert with hint is logarithmic in general, but it is amortized...
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by: CoreyWhite |
last post by:
I asked the question, "how do you define arithmetic?", and when I came
to an answer I understood math in a new, much clearer way. I also
happened upon a method of arithmetic optimization that really speeds up
calculations on computers.
If you wanted to define mathematics I would first define addition. The
simplest way to define addition is to create a function for every
number and say f_n(x)=x+n , where n is the number you are...
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by: Pushkar Pradhan |
last post by:
I want to time my matrix multiply code (in MFLOPS). I want to run the
code 100,000 times or some other big number.
This can be done 2 ways (for and while loops):
timer1 = time(NULL);
for(n = 0; n < 100000; n++)
mm();
timer2 = time(NULL);
exectime = difftime(timer2, timer1);
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by: Jeremy Holdstadt |
last post by:
This seems to be a C question to me. If it is not, I
apologize.
This command: awk 'BEGIN {srand();print srand()}'
will give the number of seconds since the epoch, present time.
Can any of you tell me how to get the number of seconds
since the epoch for an arbitrary post-epoch date like
Jan 25 1980 13:34 GMT?
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by: Il Prof |
last post by:
Hi to everyone! ;)
In C language on Linux, what string access method is faster?
1) Puntatori
char str="hello";
char* pstr;
pstr = str;
// access such as "*pstr"
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by: RoSsIaCrIiLoIA |
last post by:
d_0=32.000000
d_1=38.000000
Test success
d_0=34.000000
d_1=42.000000
Test success
d_0=1.000000
d_1=0.000000
Test success
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by: collinm |
last post by:
hi
parseDate(&prod->tmbEndRun, date_rtu);
parseTime(&prod->tmbEndRun, prod->htime_rtu_fin);
printf("end %s\n", prod->htime_rtu_fin);
return me
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by: Emmanuel Delahaye |
last post by:
Hi,
Is there a portable way to convert the value returned by difftime (a
number of seconds of type double) in time_t, which, AFAIK, is not a
number of seconds.
For this reason, I guess, that this code of mine, supposed to give an
example about 'how to use time functions correctly' is not portable, is
it ?
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by: clintonb |
last post by:
I'm looking for a way to calculate the number of days between two
dates using standard C++ functions.
Would it be as simple as just using the difftime() function and then
dividing that result by the number of seconds in a day?
- Clint
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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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: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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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.
The Art of Business Website Design
Your website is...
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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: 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: 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: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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