logo
Tags down

shadow

Why constructors if curl braces


By : Fainted Brain
Date : July 29 2020, 05:00 PM
this will help If you are allowing the fields and properties to be set by the caller, yes, there is no difference. But the constructor is not only about setting fields, it holds the logic to instantiate an object.
If you want the object to be immutable and be changed only by itself, you should use readonly fields and read-only properties. Read-only properties are declared by not providing a setter, or more simply, the set keyword.
code :
public class YourClass
{
   readonly string readonlyField;
   public int ImmutableIntProperty {get;}

   public YourClass(string field, int value)
   {
       readonlyField = field;
       ImmutableIntProperty = value;
   }
}


Share : facebook icon twitter icon

Why wasn't a double curly braces syntax preferred for constructors taking a std::initializer_list


By : jarash
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further Uniform initialization is an important and useful C++11 feature. However, you can't just use {} everywhere since: , Here's what Stroustrup has said on the subject:
code :
vector<int> v(7,2);    // 7 (a count) element with the value 2

C++11 Difference in Constructors (Braces)


By : Tamara de Haas
Date : March 29 2020, 07:55 AM
wish help you to fix your issue I am quite new to C++ and have observed, that the following lines of code act differently , Ways one and three call the default constructor.
code :
MyClass c3{};
MyClass c2();

bash, braces and quotes and curl -d


By : Arun Narayanan
Date : March 29 2020, 07:55 AM
To fix this issue After the -d, only the \"\{ forms an argument to -d. It isn't absolutely clear what you're after, but maybe:
code :
curl -v --header "Content-Type: application/json" \
     --header "Foo: Bar 123456"  \
     -d '{ "baz": "glern", "froboz": "foo again"}' \
     https://example.com > foo.html 2> error.txt 
{ "baz": "glern", "froboz": "foo again"}

Have single line empty constructors, but braces on newline everywhere else


By : rene_pxl
Date : March 29 2020, 07:55 AM
this will help I am looking for a way to make clang-format allow single line empty constructors, but to put braces on the newline everywhere else. , This doesn't solve all the issues, but it solves my main case.
code :
AllowShortFunctionsOnASingleLine: InlineOnly
class Foo {
  void f() { foo(); }
};
void f() {
  foo();
}
void f() {
}

c++ : calling constructors via curly braces?


By : user3681452
Date : March 29 2020, 07:55 AM
This might help you In your case, there is simply no difference. But if you modify your code a bit, there will be a visible difference!
First of all, you can construct your type in different ways, all described here: initilization
code :
class A 
{   
    public:
        A(int value):value_(value){ std::cout << "int" << std::endl;}
        A(const std::initializer_list<int>& ){ std::cout << "list" << std::endl;}
        void print()
        {   
            std::cout << value_ << std::endl;
        }   
    private:
        int value_;
};  

A get_a1(int value)
{   
    std::cout << "()" << std::endl;
    return A(value);
}   

A get_a2(int value)
{
    std::cout << "{}" << std::endl;
    return {value};
}


int main()
{   
    A a1 = get_a1(1);
    a1.print();
    A a2 = get_a2(2);
    a2.print();
}   
Related Posts Related Posts :
  • How to check whether string contains specific string in c#
  • UPnP hole punching can't use external IP to access device on local subnet
  • Is there a way to use a conditional when declaring method variables?
  • c# interop Excel - disable or remove automatic page breaks
  • How can I read in these commands from a file using?
  • Pinch and rotate around a point using MRTK and Hololens 1
  • Enhance performance to paint image, is SIMD perhapse a solution?
  • Which one has better performance, data types .NET or alias name data types C#?
  • HttpClient GetAsync taking ~2 seconds
  • linq fastest where method
  • Why can I read more than 254 characters with Console.ReadLine when the docs suggest that I shouldn't be able to?
  • C# - Delayed execution for a collection of items
  • How to display images in a CollectionView from a Base64 string?
  • Convert class object to class index
  • c# identifier expected in controller
  • Subscribe to multiple Observables and gets notified on the same thread
  • how to create windows service using crud operations in c# asp.net
  • Iterating through list of values in a dictionary c#
  • How to Implement Expo.io Push Notifications Send Through C#
  • Gridview columns not being set to width I enter
  • Impersonate User with Forms Authorization
  • ASP.NET MVC Impersonate not working with Forms Authentication
  • Found a potential bug in Moq library while selecting a constructor
  • I want to show a list but page is empty
  • Can this kind of concurrency problem be solved with async/await?
  • Yield keyword giving unexpected values for IEnumerable
  • Many DLLs in System namespace are included when installing library via Nuget
  • C# - range for textbox inputs
  • the Console.ReadLine() Doesn't set the string as the user input
  • Get notified when a variable changed
  • How to list players in room in Photon?
  • Link compile-time created resources to a class library
  • How to quickly choose numbers and weights in such a way as to obtain a specific weighted sum?
  • Downgrade .Net Core project from 3.1 to 2.2 - The type or namespace name 'IWebHostEnvironment' could not be found
  • c# multiplying array elements using system.numerics
  • Private methods vs local functions
  • C# project wants .NET 4.7.1 but I can't install it
  • Binding to object itself, doesn't update when individual property changes
  • remove duplicate from list in object c#
  • JSON.NET - find JObject by value regex in complex object?
  • Save an unknown sized array from unknown string length
  • Camera not centre on player sprite (monogame)
  • How to set a default type for T in a static generic method?
  • How can I insert multiple items of data into SQL using Web API?
  • Finding longest time in an array
  • How to find two quotation marks in a string
  • X509Certificate2 certification issue
  • Image format change in Azure
  • Why is there such big time difference in searching for element with higher index in ConcurrentBag?
  • Async Lambda Issue
  • C# SSIS Script Task - Add Thousand Seperator when formatting Excel column
  • How to check if a textbox starts with numeric value
  • c# Strange Pairs || I can't spot the difference between these 2 solutions?
  • str.Split(".") not working in C# interactive window but work in C# .Net core project?
  • How to do 3 conditions with if else C#
  • merge two lists of same type in c#
  • Blazor - SortBy parameter for table column component
  • InvalidCastException: Specified cast is not valid Error when tried to fetch image from url
  • Search based on Properties
  • Ref string parameter is empty?
  • shadow
    Privacy Policy - Terms - Contact Us © voile276.org