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Questions - reflection

boost::pfr with customized member

I'm trying to use boost::pfr for basic reflection, and it fails to compile when one of the member is customized type, like a class or struct, why is this? What's the way to fix it? I'm using C++17. //...
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fluter

c++

boost

reflection

c++17

Votes: 0

Answers: 2

Latest Answer

You need to provide operator<< for S1, as boost::pfr::io relies on it existing: std::ostream& operator<<(std::ostream& os, const S1& x) { return os << boost::pfr::io_...
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Vittorio Romeo

Automatic generation of struct printing function in C

I have many programs where structs are defined. And each time, I have to create a function to print the members. For example, typedef struct { char name[128]; char address[1024]; int zip; ...
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Stef1611

c

reflection

Votes: 0

Answers: 2

Latest Answer

You can of-course print structs, but expect a lot of non-readable output: #include <stdio.h> #include <ctype.h> struct example { int x; int y; char c; }; #define NOT_PRINT...
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Example person

Create a method that returns a class and then access the variables

I have a class Fruits that consists of certain variables: public class Fruits { public static String abc="something"; } public class Apple extends Fruits { public static String abc=&quo...
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SSMorgan

java

reflection

Votes: 0

Answers: 2

Latest Answer

If abc is gonna be always the same you can just keep the one in the parent class, you will always be able to access it whether your instance is of a parent or a child class. If the value of abc is dif...
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gmanjon

Get passed Annotation Parameters from Field Annotations

I have two annotations, this class one: @Retention(RetentionPolicy.RUNTIME) @Target(ElementType.TYPE) public @interface Processor { public String description() default ""; } And also this...
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Beigoma

java

reflection

annotations

field

Votes: 0

Answers: 1

Latest Answer

To access the @ProcessorParameter annotation you just need to invoke this method getAnnotation(Class<T> annotationClass) on the field object inside the second loop: for(Field field : cl.getField...
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dshelya

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