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by: nsgi_2004 |
last post by:
I have a C book that says the sizeof a char is one byte. Is this true for
C++?
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by: José de Paula |
last post by:
Is it a given that sizeof(char) always yields 1, no matter the
implementation? I ask because I saw some critics against
char * ptr = malloc (sizeof(char) * NUM);
in favour of simply
char * ptr = malloc (NUM);
--
Quidquid latine dictum sit altum viditur
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by: M Welinder |
last post by:
This doesn't work with any C compiler that I can find. They all report a
syntax error:
printf ("%d\n", (int)sizeof (char)(char)2);
Now the question is "why?" "sizeof" and "(char)" have identical precedence
and right-to-left parsing, so why isn't the above equivalent to
printf ("%d\n", (int)sizeof ((char)(char)2));
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by: Sunner Sun |
last post by:
Hi, all
FAQ of comp.lang.c said "In C, type char is defined as occupying one
byte, so it is usually 8 bits".
(http://www.eskimo.com/~scs/cclass/notes/sx2a.html)
But I found in C99 that "An object declared as type char is large
enough to store any member of the basic execution character set."(6.2.5
Types)
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by: davidb |
last post by:
Hi,
does someone know how to get the length of a 2 dimensional string
array:
here what i need:
----------------------------------------------------------------
char **getList(void){
char **myString= (char **) malloc (sizeof (char *));
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by: svlsr2000 |
last post by:
Here is a small program which i saw a couple of years ago.
#include<stdio.h>
int main()
{
char x;
if(sizeof(int)==sizeof('a'))
printf("\n C compiler\n");
else
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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...
|
by: jinu1996 |
last post by:
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|
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,...
|
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...
|
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: 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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