Please consider the following code snippet.
if (fork() == 0)
{
a = a + 5;
printf(“%d, %d
“, a, &a);
}
else
{
a = a-5;
printf (“%d, %d
“, a,& a);
} AFAIK, when creating fork(), the paren
Tag: middle
[Data Structure] Iterator realizes the order of the binary tree
Iterator
templatestruct __TreeIterator{ typedef BinTreeNode Node; typedef __TreeIterator Self; __TreeIterator() {} __TreeIterator(Node* node) :_node(node) {} Ref operator*() {assert( _node);
OSX – list all files in a Homebrew package
How to make homebrew software list all installed package files? For example, when I run brew list for the exim package, I get these files:
$ brew list exim
/usr/local/Cellar/exim /4.80.1/bin/
Hadoop stand-alone in Linux _ Pseudo-distribution _ installation and configuration
Step 1: Create a hadoop user and authorize the hadoop user
(1) In a new Linux system CentOS-7-x86_64-DVD-1708 In the .iso, if the initial user is root and not a hadoop user, then one needs to
String.getBytes () Chinese code problem
Get a byte array in the default encoding format of the operating system. This means that under different operating systems, the returned things are different!
byte[] a = “中”.getBytes()
[Data Structure] Recent public ancestors of any two nodes in the binary tree
Question request: Give two nodes in the binary tree arbitrarily, and find their nearest ancestor
There are three types Situation:
1. The binary tree is a search binary tree
If the
Why is there multiple encodings in an instruction in ARMV7
I am currently trying to implement a disassembler for ARM cortex A9, which implements the ARMv7 instruction set.
For this, I use the manual ” DDI0406C_b_arm_architecture_reference_manual.pdf”
How do I use Curator to monitor events on the neighborhood of ZooKeeper?
I am developing a project, and I need to maintain a monitor on a node, and the node is also a child node. I have tried using PathCache, but I am not sure how to watch children’s children here ?
Is the bean in Spring is the thread safe?
Conclusion: Not thread-safe
Is the Bean in the Spring container thread-safe? , The container itself does not provide a bean thread safety strategy, so it can be said that the Bean in the Spri
Returns 503 in Nginx to get a POST request
I have a simple configuration file for customizing the 503 error page during maintenance. The relevant part is like this:
The problem is found by Nginx Any request is parsed in a static file.