11,811
questions
0
votes
0
answers
6
views
Viewmodel re initialization while its not cleared after navigating between screens
This is my bottom app bar : ShoppingCartPage-HomePage-ProfilePage-MyOrders-SettingsPage
And Two screens: CategoryItemPage - OfferItemPage ( i dont want to save their states)
navigation: HomePage -> ...
-3
votes
0
answers
21
views
Should I use member or non-member functions when breaking constructors in Go? [closed]
Suppose I have a big, complex struct Foo.
type Foo struct {
// a big, complex object...
}
It will be created with the constructor function NewFoo(). Since the object is big and complex, NewFoo() ...
- 7,682
-4
votes
1
answer
106
views
What is the difference between `int arr[10]{};` and `int arr[10] = {};`? [duplicate]
I'm trying to understand array and struct initialization. I've seen two variants:
int arr[10]{};
int arr[10] = {};
What is the difference between them?
I've tried looking in https://godbolt.org/ and ...
- 339
0
votes
0
answers
12
views
NG0203 and NullInjectorError on Angular17 Application with Keycloak
I'm having 2 issues on with my application in the Homolog server, the first issue is the NG0203 when i have an empty cache:
ERROR RuntimeError: NG0203: inject() must be called from an core.mjs:6531 ...
- 1
0
votes
0
answers
29
views
Variable ___ might not have been initialized
I just started learning Java for my programming class and I have to create a decimal to binary calculator where it loops until the user inputs "stop", I'm having trouble with needing a ...
0
votes
0
answers
42
views
How to solve Mojo SDK initialization error in VScode?
I installed Max and Mojo, and set up the path correctly, and Mojo works just fine in both Ubuntu wsl and VScode. However, each time I start up VScode, the below message persists:
"Mojo SDK ...
0
votes
1
answer
75
views
Does value-initialization first zero-initialize the members of object even with provided default member initializer in C++?
On value-initialization page cppreference states the following:
The effects of value-initialization are:
If T is a (possibly cv-qualified) class type:
If the default-initialization for T selects a ...
- 51
0
votes
2
answers
99
views
Initializing fixed-size array with uninitialized values [closed]
The standard says that reading from an uninitialized variable is undefined behavior. However, suppose I want to construct std::array of uninitialized values of user-defined type Z, which is in fact ...
- 17
5
votes
1
answer
178
views
Can someone explain the rules of object lifetimes and uninitialized memory in C++ (context: std::inplace_vector)?
I've been trying to implement my own version of std::inplace_vector in C++26; that is, a dynamically-resizable array with compile-time fixed capacity, that also allows non-default-constructible ...
- 3,431
2
votes
0
answers
44
views
delay block: total pivoting and singular matrix problem
I am working on a larger model in OpenModelica and I keep getting this error:
Failed to solve linear system of equations (no. 5) at time 0.000000, system is singular for U[2, 2].
The default linear ...
- 21
0
votes
2
answers
147
views
Reference initialization using list initialization accepted by gcc and msvc but rejected by clang
Consider the following example that compiles with gcc, msvc and edg but is rejected by clang. Demo
struct X
{
public:
X(){}
};
struct Y : X
{
};
struct Z
{
public:
operator ...
- 49.9k
0
votes
0
answers
86
views
Initialize and use ADE7880 ADC via SPI in Linux
I am working with the ADE7880 ADC and I am attempting to initialize it and use it to read and write registers via SPI in C on a Linux system. My goal is to capture ADC data through SPI, but I am ...
- 27
0
votes
0
answers
30
views
PostgreSQL: Problem running post-install step. Installation may not complete correctly.The database cluster initialisation failed
On Windows 10 Enterprise, I've been trying to install multiple PostgreSQL versions (v10, v14, v16), but the installer always gives this error:
*Problem running post-install step. Installation may not ...
- 1
1
vote
1
answer
51
views
Possibility of uninitialized use of b in if (!a) { b = get_b(); } if (a || b) { ... }
When compiling the following (context) with -Oz,
extern void *get_table_index(struct table tbl, struct string name);
void inspircd2_protocol_propagate_privmsg(struct string from, struct string source,...
- 57
-3
votes
2
answers
141
views
Different notes for uninitialized member inside a generic lambda in GCC 9 and GCC 10
I have noticed an inconsistent behavior in my production C++17 code regarding generic lambdas and notes. I was finally able to break it down to the following minimal example.
Gives a note with x86_64 ...
- 552