Value of uninitialized char

Similar topics

by: rk | last post by:

Hi, I'm a beginner for perl/cgi programs and i tried to write a cgi script and when i ran it, i got the following error. But when i verified it from the book i typed exactly whatever it is there and i checked other examples too. I did't get any clue.Can someone please help me on this. #!/usr/bin/perl use warnings;

Perl

3257

How to change the the value which is pointed by a char pointer by a function?

by: cylin | last post by:

Dear all, I met a char pointer problem. please help,thanks. How to change the the value which is pointed by a char pointer by a function? for example, ----------------------------------------------------- #include <iostream> using namespace std;

C / C++

3098

pass by Reference/value ???

by: dumboo | last post by:

hi there i m little bit confused over the following problem, i have understood wt the following code is doing...but not able to get the actual techinical stuff.....i have had a lot of hot debate over the following code whether its pass by reference or pass by value...hope somebody clears it up :-) void foo(char *s) { s = new char; strcpy(s, "gotit"); }

C / C++

25565

How to find out if an int has no value

by: Richard | last post by:

I've really tried searching for this before I thought of bother you guys with this question. It's such a simple thing, but it's driving me nuts! Is it possible to check if an int (or any other type) has no value. something like: int i; ... ... ... if (i==NULL){

C / C++

2037

UMR: Uninitialized memory read in std::_Tree_nod

by: Jim Tarrant | last post by:

Hi, When I run our application under PurifyPlus, I get lots of "UMR: Uninitialized memory read" warnings, e.g. UMR: Uninitialized memory read in std::_Tree_nod<class std::_Tmap_traits<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class CTCSystem *,struct std::less<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > >,class std::allocator<struct...

.NET Framework

29444

error: uninitialized reference member

by: supachamp | last post by:

Hi everybody, I am having great problems with the following classes. I just can't figure out why I keep getting the error message: Building file: ../edge.cc Invoking: GCC C++ Compiler g++ -O0 -g3 -Wall -c -fmessage-length=0 -oedge.o ../edge.cc .../edge.cc: In constructor `Edge::Edge(Vertex&, Vertex&)': .../edge.cc:4: error: uninitialized reference member `Edge::v0'

C / C++

2172

conversion between string and numerical value

by: Aman JIANG | last post by:

hi i need a fast way to do lots of conversion that between string and numerical value(integer, float, double...), and boost::lexical_cast is useless, because it runs for a long time, (about 60 times slower than corresponding C functions) it's too expensive for my program. is there any way( library?) to do this fast and safely, please ?

C / C++

13211

char *p uninitialized

by: arnaudk | last post by:

I had an error in my code and I distilled it down to this: Could somebody tell me why the following program claims that p is being used uninitialized? #include <iostream> int main() { char *p; // error: p is being used uninitialized // char p; // no problem if we do this instead strcpy(p,"Hello"); return 0; }

C / C++

3560

Value of int NULL

by: polas | last post by:

Afternoon all, I have some code (which I thought was OK, but now appreciate is probably not by the standard) which contains int a; ...... if (a==NULL) { ....

C / C++

9721

What is ONU?

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...

General

9601

Changing the language in Windows 10

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,...

Windows Server

10637

Problem With Comparison Operator <=> in G++

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...

C / C++

10376

Maximizing Business Potential: The Nexus of Website Design and Digital Marketing

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...

Online Marketing

10379

The easy way to turn off automatic updates for Windows 10/11

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,...

Windows Server

10115

Discussion: How does Zigbee compare with other wireless protocols in smart home applications?

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...

General

5687

Windows Forms - .Net 8.0

by: adsilva | last post by:

A Windows Forms form does not have the event Unload, like VB6. What one acts like?

Visual Basic .NET

4332

transfer the data from one system to another through ip address

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

C# / C Sharp

3014

Comprehensive Guide to Website Development in Toronto: Expert Insights from BSMN Consultancy

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...

General