candid | Identity manager service | Identity Management library
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QUESTION
I created a new Quarkus app using the following command:
...ANSWER
Answered 2021-Jun-15 at 15:18Please enable the quarkus-smallrye-jwt TRACE logging to see why the tokens are rejected.
And indeed, as you have also found out, https
protocol needs to be enabled in the native image, which can be done, as you have shown :-), by adding --enable-url-protocols=https
to the native profile's properties in pom.xml
.
This PR will ensure adding it manually won't be required.
thanks
QUESTION
I'd like to run a simple neural network model which uses Keras on a Rasperry microcontroller. I get a problem when I use a layer. The code is defined like this:
...ANSWER
Answered 2021-May-25 at 01:08I had the same problem, man. I want to transplant tflite to the development board of CEVA. There is no problem in compiling. In the process of running, there is also an error in AddBuiltin(full_connect). At present, the only possible situation I guess is that some devices can not support tflite.
QUESTION
I have a pair of iterator, and I would like to use ranges::views::filter(some_predicate)
on it (with the pipe operator). AFAIU I should first convert my pair of iterator into a view. I tried to use ranges::subrange(first, last)
to do so, but I’m getting horrible error messages.
Note1: I’m using C++14 and range-v3 version 0.9.1 (the last version compatible with gcc-5.5). If the solution differs when using C++17/20 and/or when using C++20 std::ranges, I’m also interested to know what changed.
Note2: I find the documentation of range-v3 severely lacking, so I’m using cppreference.com. If you know a better documentation, I’m very interested.
EDIT:
In my real code, I’m wrapping a java-style legacy iterator (that has a next()
method instead of operator++
/operator*
. I’m wrapping them in a C++-compatible wrapper. Then I tried to convert that wrapper into a view, and finally filter it. I reproduce a minimal example on godbolt. This use iterator_range
as suggested, but it still doesn’t compile (see the second edit below).
ANSWER
Answered 2021-Apr-08 at 16:24In ranges-v3, there is iterator_range
which you can use to wrap the iterators into a range object.
In C++20, you can use std::span
to wrap those iterators into an range object
QUESTION
I am revisiting C++ after a long hiatus, and I would like to use templates to design the known "map" function -- the one which applies a specified function to every element of some specified "iterable" object.
Disregarding the fact my map
doesn't return anything (a non-factor here), I have managed to implement what I wanted if the function passed to "map" does not need to accept additional arguments:
ANSWER
Answered 2021-Jun-13 at 20:41A simple way to fix this would be to deduce the non-type template parameter for the function, and reorder the template parameter list
QUESTION
I'm sorry for the basic question but I'm struggling a bit with 3NF. This is the table I'm talking about:
User (Nickname, Email, Password, Name, Surname, DocumentId, Telephone, Avatar, Biography)
I think this table is not normalized in the third normal form because there are several functional dependencies due to the two candidate keys (DocumentId and Telephone):
- DocumentId -> Nickname, Email, Password, Name, Surname, Telephone, Avatar, Biography
- Telephone -> Nickname, Email, Password, Name, Surname, DocumentId, Avatar, Biography
Am I wrong? I am not so sure about the correctness of these functional dependencies. Are they correct? Also, how can I normalize this table?
Edit:
To specify, 2 users can't have the same DocumentId, the same Email and the same telephone number.
So this should be another functional dependency:
- Email -> Nickname, Password, Name, Surname, DocumentId, Avatar, Biography, Telephone
ANSWER
Answered 2021-Jun-13 at 22:10https://en.wikipedia.org/wiki/Third_normal_form "A database relation (e.g. a database table) is said to meet third normal form standards if all the attributes (e.g. database columns) are functionally dependent on solely the primary key. Codd defined this as a relation in second normal form where all non-prime attributes depend only on the candidate keys and do not have a transitive dependency on another key."
From a list of attributes, no-one could possibly know whether your data is in some normal form. Where have you got this question? Is that all it tells you?
You don't tell us enough about the properties of your data, but I'm guessing from the attribute names that there are 'transitive dependencies'.
All of the attributes other than DocumentId
look like they relate to a person, so (for example) Email
would identify a person, and be as much a candidate key as Telephone
. Or might there be people with distinct Telephone
but sharing one Email
?
Whereas I'd expect there to be multiple documents/DocumentId
s for each person. Or is this a DocumentId
for some specific document (such as their biography -- but in that case what is attribute Biography
?)
BTW ref that quote from Codd: there doesn't have to be one key that's 'primary'. For 3NF there can be multiple keys, providing for each every other attribute is dependent. (Note also keys might be compound/not a single attribute.)
QUESTION
The given problem: Use friend function for getting the private variable and operator overloading for calculating the total number of goals by each side of the team. I'm completely new to C++ and unable to figure out how to fix this error. What I've tried:
...ANSWER
Answered 2021-Jun-12 at 10:41Not passing Player
as a reference in the operator solves the issue:
QUESTION
I have a variadic class template.
...ANSWER
Answered 2021-Jun-11 at 18:53The correct syntax is std::make_shared<>>()
Foo
is a type, which is why std::make_shared>
works.
The problem is that Foo
, without the <>
is a template, and is not a type, and results in a compilation error.
Edit:
The code
QUESTION
class Package{
private:
float weight;
float cost;
public:
Package(float weight, float cost){
setNumber(weight, cost);
}
void setNumber(float weight, float cost){
this->weight = weight;
this->cost = cost;
}
float getWeight(){
return this->weight;
}
float getCost(){
return this->cost;
}
float calculateCost(){
return getWeight()*getCost();
}
};
class TwoDayPackage : private Package{
private:
float fee;
public:
TwoDayPackage(float fee){
setFee(fee);
}
void setFee(float fee){
this->fee = fee;
}
float getFee(){
return this->fee;
}
float calculateCost(){
return Package::calculateCost() + getFee();
}
};
...ANSWER
Answered 2021-Jun-11 at 17:53There some "hidden" code here:
QUESTION
I'm trying to learn Recurrent Neural Networks (RNN) with Flux.jl in Julia by following along some tutorials, like Char RNN from the FluxML/model-zoo.
I managed to build and train a model containing some RNN cells, but am failing to evaluate the model after training.
Can someone point out what I'm missing for this code to evaluate a simple (untrained) RNN?
...ANSWER
Answered 2021-Jun-11 at 12:27Turns out it's just a problem with the input type.
Doing something like this will work:
QUESTION
I am trying to implement a simple messaging mechanism between my browser (peer 1) and another browser (peer 2) on a different network. I am using Google's public STUN servers for learning.
Peer 1 does the following first:
...ANSWER
Answered 2021-Feb-15 at 02:22Here is a complete example of what you are trying to accomplish. Notice that it also has code for a Google STUN server, but it is remarked out: https://owebio.github.io/serverless-webrtc-chat/.
That page uses two iframes:
Create: https://owebio.github.io/serverless-webrtc-chat/noserv.create.html
Join: https://owebio.github.io/serverless-webrtc-chat/noserv.join.html.
This should get you started.
Also, two libraries built on WebTorrent exist that can aid in discovering and connecting to peers using only the browser: Bugout, P2PT.
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