Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Login
Remember
Register
Ask
Q&A
All Activity
Hot!
Unanswered
Tags
Users
Ask a Question
Ask a Question
Categories
All categories
Topic[话题] (13)
Life[生活] (4)
Technique[技术] (2.1m)
Idea[创意] (3)
Jobs[工作] (2)
Others[杂七杂八] (18)
Code Example[编程示例] (0)
Recent questions tagged C++
0
votes
102
views
1
answer
c++ - can't use structure in global scope
I defined struct in the global scope, but when I try to use it, I get error: co' does not name a type ... just cannot be used in global scope? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
223
views
1
answer
c++ - Arc in QGraphicsScene
I want to implement arc in QGraphicsScene. I want that on clicking of three points my arc should be drawn such ... me out to solve the error. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
313
views
1
answer
c++ - Using an union (encapsulated in a struct) to bypass conversions for neon data types
I made my first approach with vectorization intrinsics with SSE, where there is basically only one data type ... aligned attribute necessary?) See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
317
views
1
answer
c++ - Generate all sequences of bits within Hamming distance t
Given a vector of bits v, compute the collection of bits that have Hamming distance 1 with v, then with distance 2, up to ... 1 1 0 0 1 0 1 0 See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
575
views
1
answer
c++ - Why does rand() return the same value using srand(time(null)) in this for loop?
I have the following code #include<iostream> #include "time.h" using namespace std; void printRandomNumber() { srand( ... out a mix of numbers. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
124
views
1
answer
c++ - Combining two lists by key using Thrust
Given two key-value lists, I am trying to combine the two sides by matching the keys and applying a ... are thrust::device_vector<int>. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
173
views
1
answer
c++ - how to swap array-elements to transfer the array from a column-like into a row-like representation
For example: the array a1, a2, a3, b1, b2, b3, c1, c2, c3, d1, d2, d3 represents following table ... do the job with element-swap operations. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
119
views
1
answer
c++ - How to store a reference of a singleton class?
I am working on a project relating to a dealer dealing cards to players. I have the singleton class Dealer ... to the singleton Dealer instance? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
147
views
1
answer
c++ - Referencing memory operands in .intel_syntax GNU C inline assembly
I'm catching a link error when compiling and linking a source file with inline assembly. Here are the test files: via: ... and how do I fix it? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
105
views
1
answer
c++ - Why can't I assign an array variable directly to another array variable with the '=' operator?
Why does the following assignment not work? I would like a low-level explanation if possible. Also, here's the compiler ... ); //works } }; See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
664
views
1
answer
c++ - How to solve -------undefined reference to `__chkstk_ms'-------on mingw
I have just install gcc and g++ on mingw. I wrote a very simple "hello world" program to test if the ... collect2: ld returned 1 exit status See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
148
views
1
answer
c++ - error LNK2019 unresolved external symbol
I am quite new to C++ so I downloaded a sample C++ program. The sample program seems to hit the ... would very much be appreciated. Thanks See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
338
views
1
answer
c++ - Copy constructor elision?
Don't quite understand why this copy constructor is not invoked when I build with debug mode using VC2010. ... it omit the copy constructor. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
310
views
1
answer
c++ - int var = 1; void main() { int i = i; }
This is an interview question that I had: int var = 1; void main() { int i = i; } What is the value of ... to give me 0 all the time. Thanks See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
323
views
1
answer
c++ - Explicitly initialize DWORD to 1, but debugger shows wildly out of range value
I'm a bit flabberghasted with this issue - in debug mode this issue doesn't come up at all, but in release ... Debug mode this code runs fine. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
122
views
1
answer
c++ - how does url within function body get compiled
I just pasted a url to my code, and forgot to comment it, but I was surprised to see MSVC++ compiled it ... come this gets compiled by MSVC++? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
158
views
1
answer
c++ - How to require an exact function signature in the detection idiom?
Let's suppose I have a type T and I want to detect whether it has a subscript operator which I can call with ... int to size_t to take place? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
110
views
1
answer
c++ - Do you know tool building tree of include files in projectfile?
Say, I'd like to have a tool (or script?) taking project (or .h file) and building searchable tree of "includes" ... has an idea how to get it]? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
84
views
1
answer
c++ - Macros in the middle of a class or function declaration
I've read related questions like this and this, and other pages, but they don't really answer my question. ... that would be much appreciated. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
236
views
1
answer
c++ - Size of the classes in case of virtual inheritance
Can someone please explain about the size of the classes in the case of virtual inheritance involving virtual functions. ... 4.6.1-9ubuntu3) See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
232
views
1
answer
c++ - Reading and writing a std::vector into a file correctly with iterators
I'm trying to understand the answer provided here, but I can't seem to make it work. Here is what ... be updated to populate newVector? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
164
views
1
answer
c++ - What is the purpose of forward declaration?
what is the description or meaning of this: for example: class test; class test { ..... }; See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
277
views
1
answer
c++ - how to set pointer to a memory to NULL using memset?
I have a structure typedef struct my_s { int x; ... } my_T; my_t * p_my_t; I want to set the ... careful thinking about what is going on. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
165
views
1
answer
c++ - Is uninitialized data behavior well specified?
Note: I am using the g++ compiler (which is I hear is pretty good and supposed to be pretty ... completely understanding the inheritance stuff.. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
244
views
1
answer
c++ - Other's library #define naming conflict
Hard to come up with a proper title for this problem. Anyway... I'm currently working on a GUI for my ... to avoid them all together. Cheers! See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
358
views
1
answer
c++ - Windows Media Foundation recording audio
I'm using the windows media foundation api to enumerate both my microphones and available cameras, which both work. ... into my video encoding. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
217
views
1
answer
c++ - How does calling srand more than once affect the quality of randomness?
This comment, which states: srand(time(0)); I would put this line as the first line in main() instead if ... Can somebody clear this up for me? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
142
views
1
answer
c++ - clang vs gcc - optimization including operator new
I have this simple example I was testing against and I noticed that gcc optimizations (-O3) seems not be as ... something which is not allowed? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
Page:
« prev
1
...
268
269
270
271
272
273
274
275
276
277
278
...
568
next »
Ask a question:
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question
Just Browsing Browsing
[1] How to convert Java String "EEE MMM dd HH:mm:ss zzz yyyy"date type to Java util.Date "yyyy-MM-dd"
[2] 关于mybatis处理json疑惑.
[3] c# - How do I save the formatting of a richtextbox and also be able to load it here as well without creating a file on my computer?
[4] javascript - Google script string ends with ... and then undefined
[5] uni-app uview u-dropdown下拉菜单吸顶后高度坍塌有兄弟解决过吗
[6] python - How to compute auc score manually without using sklearn?
[7] Ant Design的table固定表头
[8] mysql 启动服务报错
[9] Codacy error : "All output should be run through an escaping function" in PHP project
[10] Mysql Nested json arrays
2.1m
questions
2.1m
answers
60
comments
56.9k
users
Most popular tags
javascript
python
c#
java
How
android
c++
php
ios
html
sql
r
c
node.js
.net
iphone
asp.net
css
reactjs
jquery
ruby
What
Android
objective
mysql
linux
Is
git
Python
windows
Why
regex
angular
swift
amazon
excel
algorithm
macos
Java
visual
how
bash
Can
multithreading
PHP
Using
scala
angularjs
typescript
apache
spring
performance
postgresql
database
flutter
json
rust
arrays
C#
dart
vba
django
wpf
xml
vue.js
In
go
Get
google
jQuery
xcode
jsf
http
Google
mongodb
string
shell
oop
powershell
SQL
C++
security
assembly
docker
Javascript
Android:
Does
haskell
Convert
azure
debugging
delphi
vb.net
Spring
datetime
pandas
oracle
math
Django
联盟问答网站-Union QA website
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
广告位招租
...