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
225
views
1
answer
c++ - What is the fastest way to change a key of an element inside std::map
I understand the reasons why one can't just do this (rebalancing and stuff): iterator i = m.find(33); ... the node back into the tree Rebalance See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
362
views
1
answer
c++ - How to copy contents of a directory into build directory after make with CMake?
I've got some config files (xml, ini, ...) in the config directory next to the source files. How can I ... file) each time I make the project? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
365
views
1
answer
c++ - What does the fpermissive flag do?
I'm just wondering what the -fpermissive flag does in the g++ compiler? I am getting: error: taking address of ... to fix that part right now. 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++ - Print a binary tree in a pretty way
Just wondering if I can get some tips on printing a pretty binary tree in the form of: 5 10 11 7 6 3 4 2 Right ... ; case 4: return 0; } } } See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
200
views
1
answer
c++ - Cleaning up an STL list/vector of pointers
What is the shortest chunk of C++ you can come up with to safely clean up a std::vector or std::list ... wrap my pointers with smart pointers. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
513
views
1
answer
c++ - Netbeans 7.2 shows "Unable to resolve identifier" , although build is successful
I'm using the Netbeans IDE 7.2 with C/C++ plugin (last version 1.18.1.1) and if I build my project ... this bug and how can I solve it? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
686
views
1
answer
c++ - Thread pool using boost asio
I am trying to create a limited thread pool class using boost::asio. But I am stuck at one point can some one ... back to stack? return 0; } See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
267
views
1
answer
c++ - Fast fixed point pow, log, exp and sqrt
I've got a fixed point class (10.22) and I have a need of a pow, a sqrt, an exp and a log ... code so I cannot use any assembler optimisations. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
264
views
1
answer
c++ - How does weak_ptr work?
I understand how to use weak_ptr and shared_ptr. I understand how shared_ptr works, by counting the number of ... things it uses. Thanks. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
566
views
1
answer
c++ - QGraphicsView Zooming in and out under mouse position using mouse wheel
I have an application with a QGraphicsView window in the middle of the screen. I want to be able to zoom ... scale under mouse would be great. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
175
views
1
answer
c++ - Can I typically/always use std::forward instead of std::move?
I've been watching Scott Meyers' talk on Universal References from the C++ and Beyond 2012 conference, and ... :forward<Widget>(param) } 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++ - Can macros be overloaded by number of arguments?
How does this work? How can a C99/C++11 variadic macro be implemented to expand to different things on the ... many arguments are given to it? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
422
views
1
answer
c++ - linux perf: how to interpret and find hotspots
I tried out linux' perf utility today and am having trouble in interpreting its results. I'm used to valgrind's ... apply to all 64bit systems). See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
423
views
1
answer
c++ - How can I iterate over a packed variadic template argument list?
I'm trying to find a method to iterate over an a pack variadic template argument list. Now as with all ... I'm looking forward to help. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
489
views
1
answer
c++ - Can const-correctness improve performance?
I have read numerous times that enforcing const-correctness in your C or C++ code is not only a good ... improving your program's performance? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
204
views
1
answer
c++ - CUDA and Classes
I've searched all over for some insight on how exactly to use classes with CUDA, and while there is a general ... I'd love to hear alternatives. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
704
views
1
answer
c++ - How to use _CRT_SECURE_NO_WARNINGS
I have compile error in my simple MFC window application generated from wizard with several lines of code: ... problems without this definition? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
437
views
1
answer
c++ - What's the point of g++ -Wreorder?
The g++ -Wall option includes -Wreorder. What this option does is described below. It is not obvious to me why ... warning is enabled by -Wall. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
377
views
1
answer
c++ - Is there a way to find all the functions exposed by a dll
I've been searching for a way to get all the strings that map to function names in a dll. I mean by ... a system call to acquire those names. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
216
views
1
answer
c++ - c++11 regex slower than python
hi i would like to understand why the following code which does a split string split using regex #include<regex> ... system 99% cpu 0.109 total See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
469
views
1
answer
c++ - fatal error LNK1104: cannot open file 'libboost_system-vc110-mt-gd-1_51.lib'
Seem I can't get this to work. I made a simple console application (which depend on websocket++ library) which ... -1_51.lib instead. Any idea? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
206
views
1
answer
c++ - How can I output the value of an enum class in C++11
How can I output the value of an enum class in C++11? In C++03 it's like this: #include <iostream> using ... _Tp = A]' compiled at Ideone.com See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
529
views
1
answer
c++ - Error: invalid operands of types ‘const char [35]’ and ‘const char [2]’ to binary ‘operator+’
At the top of my file I have #define AGE "42" Later in the file I use ID multiple times including some ... that you defined in the function." See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
844
views
1
answer
c++ - How do you convert CString and std::string std::wstring to each other?
CString is quite handy, while std::string is more compatible with STL container. I am using hash_map. However, ... std::string and vice versa? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
1.1k
views
1
answer
c++ - How do you disable the unused variable warnings coming out of gcc in 3rd party code I do not wish to edit?
I'd like to know what switch you pass to the gcc compiler to turn off unused variable warnings? I'm getting ... the -Wall overrides my goal? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
426
views
1
answer
c++ - How can I solve the error LNK2019: unresolved external symbol - function?
I get this error, but I don't know how to fix it. I'm using Visual Studio 2013. I made the solution ... /function.cpp" in file unittest.cpp? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
268
views
1
answer
c++ - Template default arguments
If I am allowed to do the following: template <typename T = int> class Foo{ }; Why am I not ... being elusive to my complete understanding. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
543
views
1
answer
c++ - Lambda capture as const reference?
Is it possible to capture by const reference in a lambda expression? I want the assignment marked below to ... const reference? (August 2015) See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
Page:
« prev
1
...
325
326
327
328
329
330
331
332
333
334
335
...
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] 宽度变化的时候。这些echarts图形来不及变化,成散的了。要过几秒钟才会合并在一起。怎么办呢?
[2] jinja2 - Get an OpenLayer map in a Flask app template
[3] react项目, 在页面修改saga models文件的拿到的state, 为什么会直接更新了
[4] 设置理想视口后,如果内部元素设置的宽度大于视口宽度,为什么body不会撑开,元素会超出body?
[5] forge 控制正交视图
[6] Vue 中样式不生效
[7] vue输入节点名称,选中该节点并展开它的字节点,其中默认展开三级,获取下级节点需要发送请求
[8] ckan - What could have happened to my website files on my google cloud platform?
[9] c++ - How to implement a class template that provides functionality to its derived classes to track their instances?
[10] Java 泛型能 extends 多个吗?语法对不对?
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
...