大约有 23,000 项符合查询结果（耗时：0.0209秒） [XML]
What is the difference between AF_INET and PF_INET in socket programming?
... Protocol Family
Meaning, AF_INET refers to addresses from the internet, IP addresses specifically. PF_INET refers to anything in the protocol, usually sockets/ports.
Consider reading the man pages for socket(2) and bind(2). For the sin_addr field, just do something like the following to set it:
...
How do I create an array of strings in C?
I am trying to create an array of strings in C. If I use this code:
14 Answers
14
...
What's the difference between a word and byte?
...
For extra credit, a "nibble" is a common term for half a byte. It arose during the early microcomputer CPU era (e.g., the Intel 8080), and was always understood to be 4 bits, because by then the byte had settled down to 8 bits.
...
IEnumerable to string [duplicate]
...can't find a really easy way to convert an IEnumerable<char> to a string .
6 Answers
...
Difference between 'struct' and 'typedef struct' in C++?
...hat C++
generates a typedef for every tag
name, such as
typedef class string string;
Unfortunately, this is not entirely
accurate. I wish it were that simple,
but it's not. C++ can't generate such
typedefs for structs, unions, or enums
without introducing incompatibilities
with ...
PHP Session Fixation / Hijacking
...ed so it's not 100% reliable, but it's better than not.
Include the user's IP address from $_SERVER['REMOTE_ADDR'] in the session. Basically, when the session starts, store it in something like $_SESSION['remote_ip']. This may be problematic from some ISPs that use multiple IP addresses for their ...
Replacing a char at a given index in string? [duplicate]
String does not have ReplaceAt() , and I'm tumbling a bit on how to make a decent function that does what I need. I suppose the CPU cost is high, but the string sizes are small so it's all ok
...
Best way to check for “empty or null value”
What is best way to check if value is null or empty string in Postgres sql statements?
10 Answers
...
TCP vs UDP on video stream
...tivity; therefore TCP is more appropriate for replaying a video-on-demand.
IP multicast significantly reduces video bandwidth requirements for large audiences; TCP prevents the use of IP multicast, but UDP is well-suited for IP multicast.
Live video is normally a constant-bandwidth stream recorded o...
Permission denied (publickey) when SSH Access to Amazon EC2 instance [closed]
...out which username you should use is often lacking from the AMI Image description. But you can find some in AWS EC2 documentation, bullet point 4. :
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AccessingInstancesLinux.html
Use the ssh command to connect to the instance. You'll specify the...