Questions regarding initialization code of static members
Questions tagged [static-initialization]
325 questions
1
vote
1 answer
How to debug static initialization problems?
I'm having a hard time debugging this issue: https://github.com/cnjinhao/nana/issues/445
I have previously asked about LTO vs static object initialization and edited the library's code to implement Meyer's singletons so that the correct order of…
Xeverous
- 973
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1
vote
0 answers
Detailed Initialization Procedure class variable initializer
I saw many confusing answers about the following point :
Next, execute either the class variable initializers and static initializers of the class, or the field initializers of the interface, in textual order, as though they were a single…
Mohammad Karmi
- 1,403
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1
vote
2 answers
Constant initialization of dependent non-local constant float variables w/ static storage duration in different translation units
I'm wondering whether I can rely on constant initialization when there is a dependency between two constant non-local float variables with static storage duration in two different translation units - where one is dependent on (initialized to [the…
dfrib
- 70,367
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- 192
1
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3 answers
Is it bad practice to specify an array size using a variable instead of `#define` in C++? (C error: variably modified at file scope)
In C, declaring an array size using a variable, even if it is a const variable, is not allowed. Example: this fails to compile in C:
#include
const int SIZE = 2;
int a[SIZE];
int main()
{
a[0] = 1;
a[1] = 2;
printf("%i, %i",…
Gabriel Staples
- 36,492
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1
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2 answers
Plain "C" static initializer macro with variable length tail.
I have a struct defined as:
typedef struct coro_context {
int id;
jmp_buf env;
list_head list;
jmp_buf waiter;
long timeout;
void *private;
char stack[0];
} coro_context;
which I need to initialize with three values
id…
ZioByte
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1
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0 answers
Why can't interfaces have static initialization block when it can have static methods alone?
After java 8 it is known that interfaces can have static methods and default methods.
Below is the example :
interface interA{
static void method()
{
System.out.println("Static method inside interface");
}
public default…
Sushmi S
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1
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1 answer
calling a java constructor of same class from non static context leads to recursion but with static it works fine?
I am trying to understand initialization order of Java class. Specifically when and in what order are static and Instance initializer/fields are executed. I came up with example as in this stackoverflow Question. Why does adding static to the self…
Mayank Madhav
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1
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1 answer
Which classes get initialized when a static method of Base class is called through Derived class reference?
I think that only Base class is initialized when Derived.f() is called. Exactly like it happens when we have a (non-compile-time-constant) static field in Base, not static method. My doubt is only that JLS is not very clear on that.
class Base {
…
Code Complete
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1
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1 answer
Is initializing a static field with a constructor always considered bad practice?
I was reading about initializers in Java.
I read almost all the Stackoverflows related questions, and I became quite familiar with what a constructor is ,and, what non-static (instance) initilizer blocks and static initializers are.
I think I…
Gabriele Scarlatti
- 173
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1
vote
3 answers
static arraylist with instances of Class with initial values
Im making a Coin class with a static arraylist that stores every instance of the class created, howevered I need to initiate that list with an initial instance, and I have not figured out how to do it without adding it twice (because of a redundant…
Nicolas Quiroz
- 367
- 2
- 13
1
vote
2 answers
Why static initializer allow re-initialization of static variable in Java?
I am studying static initializers in Java. I came through a source code as given below:
public class A {
private static int count = 5;
final static int STEP = 10;
boolean alive;
static {
count = 1;
}
…
patrick.1729
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1
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1 answer
C++ initialization of struct containing an array
I have a structure that more or less follows this pattern:
struct sTruct {
int count;
struct {
int A;
int B;
int C;
} array[]; //count is the size of this array
};
I would like to be able to initialize these with…
jkerian
- 16,497
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1
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1 answer
Empty std::string in static method initialiser
I am using a static method to initialise the const fields of a class. The static method uses some const variables that are stored in a separate header file. Primitive types are correctly being passed to the static method, but the std::strings are…
user7119460
- 1,451
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1
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2 answers
Static Initialization Before Enum Elements
It is not possible to make a static initialization before initialization of enum elements in Java since enum elements always have to be declared and initialized first.
If a static initialization doesn't depend on enum elements, its execution order…
oak
- 199
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1
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2 answers
Why does printing a static variable value gives error in static block while assigning it doesn't
public class ABC {
static {
System.out.println(i);
}
static int i=10;
static {
System.out.println(i);
}
public static void main(String[] args)
{
System.out.println(3);
ABC a =…
Anuj Singh
- 19
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