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by: Steven T. Hatton |
last post by:
This is from the draft of the previous version of the Standard:
http://www.kuzbass.ru:8086/docs/isocpp/expr.html
2- A literal is a primary expression. Its type depends on its form
(lex.literal). A string literal is an *lvalue*; all other literals are
*rvalues*.
-4- The operator :: followed by an identifier, a qualified-id, or an
operator-function-id is a primary-expression. Its type is specified by the
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by: Don Starr |
last post by:
When applied to a string literal, is the sizeof operator supposed to return the size of the string
(including nul), or the size of a pointer?
For example, assuming a char is 1 byte and a char * is 4 bytes, should the following yield 4, 5, of
something else? (And, if something else, what determines the result?)
char x = "abcd";
printf( "%d\n", sizeof( x ) );
-Don
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by: al |
last post by:
char s = "This string literal";
or
char *s= "This string literal";
Both define a string literal. Both suppose to be read-only and not to be
modified according to Standard. And both have type of "const char *".
Right? But why does the compiler I am using allow s to be modified, instead
of generating compile error?
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by: Jake Barnes |
last post by:
I was just reading this article on Ajaxian:
http://ajaxian.com/archives/show-love-to-the-object-literal
This is a newbie question, but what is the object literal? I thought it
was like an array notation, but is it really its own thing? You can
declare arrays this way, can't you? An object in Javascript is like a
hash array that stores pointers to properties and methods?
Or is object literal notation a convenience form, wholly...
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by: Generic Usenet Account |
last post by:
I have been to recreate a problem that I am having with strings with
the trivial code snippet given below. In the trivial code example, I
am reading five lines from a data file, each line having only one word.
I try to concatenate each word read into a string variable, separated
by a delimiter character. Even though I am able to read the words from
the file correctly, I am not able to correctly concatenate the string.
I was expecting the...
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by: subramanian100in |
last post by:
Suppose we have
char *a = "test message" ;
Consider the comparison
if (a == "string")
.....
Here "string" is an array of characters. So shouldn't the compiler
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by: william |
last post by:
#include <stdio.h>
int main()
{
char *str=NULL;
char x="today is good!";
printf("%s", str);
str=strtok(x," ");
if (str=="today") //<==here is line that confuses me
printf("they equals!\n");
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by: cameljs18 |
last post by:
Converting a string variable into a string literal. How do I add the
@ character in front of the string?
I cannot add it when the string is created as it will affect other
parts of the program.
I have tried these but they do not work:
label1.text = @S
label1.text = "@" + S
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by: sinbad |
last post by:
hi,
how to concatenate a "hash defined" constant value to another "hash
defined" constant string. For example
#define ABC 100
#define MYSTR "The value of ABC is"
Now i need a string that will concatenate the value of ABC to MYSTR .
I need this at compile time.
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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: 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: 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: 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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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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