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by: Steven |
last post by:
Is printf thread-safe?
Someone tell me it isn't, however, I think it is.
If it isn't, then why?
Thank you in advance.
--
Steven Ding
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by: cylin |
last post by:
Dear all,
To do below is too long.
cout << "Name: " << name << ", Age: " << age << endl;
Can cout use "%" to implement?
Thanks.
cylin.
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by: uli |
last post by:
Hi all!
I'm posting to both newsgroups, because it's actually a C++ problem but
could be that some of you using Matlab-&-MEX-&-C++ was struggling with the
same problem.
I'm trying to rewrite some Matlab routines in C++ for reusing them
identically in Matlab and some other simulation tools. For computational
algebra I want to use the Matrix Template Library (MTL,
http://www.osl.iu.edu/research/mtl/) which is written in C++ and therefore...
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by: Minti |
last post by:
Is std::cout slower than printf
When we call printf e.g. in
printf(20 format conversion specifications, 20 arguments);
Is it faster than the
std::cout << { 20 redirections to the output stream }
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by: liaoo |
last post by:
Dear all,
I have a question about using cout<<...
In standard C, I can use printf("%x",...) to print "hex" number. But in
Watcom C++, when using cout<<, I got the "decimal" representation !
Ex. a = 0x80000004
if ( using printf("%x",a) ) then I got "80000004" on screen
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by: Podrzut_z_Laweczki |
last post by:
Hello, I have question (or 2 :)). Is that true that for a large data
using scanf/printf instead of cin/cout makes that the program runs
faster? And if it is, is it legal to mix scanf/printf with C++ code?
Program should execute below 1 sec and the hint is to use scanf/printf.
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by: pai |
last post by:
Hi,
This is a code . the output will be
why is this so. Can any nody explain me this..
4444 2222 7777 8888
aaaa
*******************************
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by: laikon |
last post by:
Hello, everyone:
this is about overflow in C and C++.
int c = 400;
printf("%c", c);
it print ? on screen, and ascii of '?' is 63.
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by: Rahul |
last post by:
Hi Everyone,
I had a query reg printf(). I heard that it can't be used in ISR's
as it is non-re-enterant. I didn't get as to why
printf is non-re-enterant and why non-re-enterant library can't be
used in an ISR?
Thanks in advance ! ! !
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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...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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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: 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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