struct | Supports immutability | Reflection library
kandi X-RAY | struct Summary
kandi X-RAY | struct Summary
Structs for PHP. Simple data transfer objects.
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- Block public properties .
struct Key Features
struct Examples and Code Snippets
Lines of Code : 46License : Permissive (MIT)
Copyname = 'Eiríkr Blóðøx';
$employee->department = 'Norway';
$employee->salary = 954;
echo $employee->name; // Eiríkr Blóðøx
/**
* You can only use properties set in class / struct level.
*/
$employee->hobbies = "Raiding"; // T 'Eiríkr Blóðøx',
'department' => 'Norway',
'salary' => 954,
// Setting incorrect fields here will likewise throw exceptions.
);
$employee = new EmployeeImmutable($data);
// You can access the properties.
echo $employee->name;
echo $emp def _conform_to_outputs(self, outputs, struct):
"""Convenience method to conform `struct` to `outputs` structure.
Mappings performed:
(1) Map a dict to a list of outputs, using the output names.
(2) Fill missing keys in a dict w/ `N Community Discussions
Trending Discussions on struct
QUESTION
I was following along with this tutorial on creating a concurrent counter struct for a usize value: ConcurrentCounter. As I understand it, this wrapper struct allows us to mutate our usize value, with more concise syntax, for example:my_counter.increment(1) vs. my_counter.lock().unwrap().increment(1).
Now in this tutorial our value is of type usize, but what if we wanted to use a f32, i32, or u32 value instead?
I thought that I could do this with generic type arguments:
...ANSWER
Answered 2021-Jun-15 at 23:55I haven't come across such a ConcurrentCounter library, but crates.io is huge, maybe you find something. However, if you are mostly concerned with primitives such as i32, there is a better alternative call: Atomics, definitely worth checking out.
Nevertheless, your approach of generalizing the ConcurrentCounter is going in a good direction. In the context of operation overloading, std::ops is worth a look. Specifically, you need Add, Sub, and Mul, respectively. Also, you need a Copy bound (alternatively, a Clone would also do). So you were pretty close:
QUESTION
so I'm struggling with these things:
I have method that returns istream input and takes istream input as a parameter, sends values to vector and stores them in it. Now, when I've entered 1 value, I'm trying to make a check if vector already contains that value, here is my code to understand it better:
...ANSWER
Answered 2021-Jun-15 at 20:14first of all, you can check count of std::vector to see if given key exists
QUESTION
I'm currently using Winsock2 to be able to test a connection to multiple local telnet servers, but if the server connection fails, the default Winsock client takes forever to timeout.
I've seen from other posts that select() can set a timeout for the connection part, and that setsockopt() with timeval can timeout the receiving portion of the code, but I have no idea how to implement either. Pieces of code that I've copy/pasted from other answers always seem to fail for me.
How would I use both of these functions in the default client code? Or, if it isn't possible to use those functions in the default client code, can someone give me some pointers on how to use those functions correctly?
...ANSWER
Answered 2021-Jun-15 at 21:17
select()can set a timeout for the connection part.
Yes, but only if you put the socket into non-blocking mode before calling connect(), so that connect() exits immediately and then the code can use select() to wait for the socket to report when the connect operation has finished. But the code shown is not doing that.
setsockopt()withtimevalcan timeout the receiving portion of the code
Yes, though select() can also be used to timeout a read operation, as well. Simply call select() first, and then call recv() only if select() reports that the socket is readable (has pending data to read).
Try something like this:
QUESTION
the swiftui code below should apply the sephia.tone filter to the current photo, to do it I used the code below but the filter is not applied, can anyone explain to me where the problem is? when I click on sepia I make the call to the function that applies the CiFilter,what is this due to? because the filter is not applied correctly
Swift UI Code:
...ANSWER
Answered 2021-Jun-15 at 16:15You need to set input image for the filter and take care of the interoperately between Image and UImage
QUESTION
I'm trying to parallelize a merge-sort algorithm. What I'm doing is dividing the input array for each thread, then merging the threads results. The way I'm trying to merge the results is something like this:
...ANSWER
Answered 2021-Jun-15 at 01:58I'm trying to parallelize a merge-sort algorithm. What I'm doing is dividing the input array for each thread, then merging the threads results.
Ok, but yours is an unnecessarily difficult approach. At each step of the merge process, you want half of your threads to wait for the other half to finish, and the most natural way for one thread to wait for another to finish is to use pthread_join(). If you wanted all of your threads to continue with more work after synchronizing then that would be different, but in this case, those that are not responsible for any more merges have nothing at all left to do.
This is what I've tried:
QUESTION
I have to do an exercise were I got h.264 video sender host, h.264 video receiver (with background traffic receiver) host, and a background traffic generator host. All of these three are on different ip subnet connected to P4 controller.
...ANSWER
Answered 2021-Jun-15 at 17:48Yes I can see what you mean, I have done this integration before you only forget the priority statement otherwise should run well, please add this to your code;
after
apply { ipv4_lpm.apply();
ADD:
QUESTION
i want to preload M2M relation with gorm and it is not populating the slice with Preload function.
ANSWER
Answered 2021-Jun-15 at 14:41There are a couple of things to try out and fix:
You probably don't need the many2many attribute to load the DonationDetail slice, since they can be loaded only with DonationID. If you have a foreign key, you can add it like this:
QUESTION
I'm trying to make one class which requires member variables to be initialized first. I know why this happens, but is there a way around this?
Current print order: second first
Wanted print order: first second
...ANSWER
Answered 2021-Jun-15 at 13:51Make A a needed reference for C:
QUESTION
I have three .snappy.parquet files stored in an s3 bucket, I tried to use pandas.read_parquet() but it only work when I specify one single parquet file, e.g: df = pandas.read_parquet("s3://bucketname/xxx.snappy.parquet"), but if I don't specify the filename df = pandas.read_parquet("s3://bucketname"), this won't work and it gave me error: Seek before start of file.
I did a lot of reading, then I found this page
it suggests that we can use pyarrow to read multiple parquet files, so here's what I tried:
ANSWER
Answered 2021-Jun-15 at 13:59You have a column with a "struct type" and you want to flatten it. To do so call flatten before calling to_pandas
QUESTION
I want to initialize a structure with an array of string without doing dynamic allocation. Is it possible? I had thought of something like this but it doesn't work:
...ANSWER
Answered 2021-Jun-15 at 13:52There are several variants possible, here two of them:
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