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
575
views
1
answer
c++ - `filesystem` with c++17 doesn't work on my mac os x high sierra
I'm following this tutorial: http://www.bfilipek.com/2017/08/cpp17-details-filesystem.html to checkout new c++ ... of string.h. Any thoughts? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
154
views
1
answer
c++ - Accessing map value by index
If I have a structure like std::map<string, int> myMap; myMap["banana"] = 1; myMap["apple"] = 1; ... hugely inefficient? Is there a better way? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
288
views
1
answer
c++ - Virtual Inheritance: Error: no unique final overrider
I know virtual inheritance is covered here before and before asking this question, I went through the detail of the virtual ... g++ 4.6.3. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
274
views
1
answer
c++ - Is using a vector of boolean values slower than a dynamic bitset?
Is using a vector of boolean values slower than a dynamic bitset? I just heard about boost's dynamic ... vector of boolean values instead? 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++ - calculating factorial using template meta-programming
I do not understand how this piece of code (from Wikipedia) works: template <int N> struct Factorial { enum { ... was I missing out on? Thanks! See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
238
views
1
answer
c++ - Setting thread priority in Linux with Boost
The Boost Libraries don't seem to have a device for setting a thread's priority. Would this be the ... alot of Linux programming experience. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
101
views
1
answer
c++ - Is undefined behavior worth it?
Many bad things happened and continue to happen (or not, who knows, anything can happen) due to ... time without considerable overhead? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
128
views
1
answer
c++ - What is the use of "delete this"?
Today, I have seen some legacy code. In the destructor there is a statement like "delete this". I ... situations for using such statements? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
209
views
1
answer
c++ - Is rebasing DLLs (or providing an appropriate default load address) worth the trouble?
Rebasing a DLL means to fix up the DLL such, that it's preferred load adress is the load address that ... Chapter 20, DLL Advanced Techniques. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
356
views
1
answer
c++ - vector <unsigned char> vs string for binary data
Which is a better c++ container for holding and accessing binary data? std::vector<unsigned char> or std::string ... one a more 'correct' usage? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
266
views
1
answer
c++ - execv() and const-ness
I often use the execv() function in C++, but if some of the arguments are in C++ strings, it annoys me ... Does anyone know the reason for this? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
305
views
1
answer
c++ - Pointers to elements of std::vector and std::list
I'm having a std::vector with elements of some class ClassA. Additionally I want to create an index using a ... :list instead of std::vector? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
311
views
1
answer
c++ - C++11: What happens if you don't call join() for std::thread
Given below: void test() { std::chrono::seconds dura( 20 ); std::this_thread::sleep_for( dura ); } int ... of timeout behavior on the thread? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
320
views
1
answer
c++ - template class member function only specialization
I am reading the Complete Guide on Templates and it says the following: Where it is talking about class ... ? Can someone please clarify? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
259
views
1
answer
c++ - How do I find the 'temp' directory in Linux?
How do I find the 'temp' directory in Linux? I am writing a platform neutral C++ function that returns the temp directory. ... --------------- See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
285
views
1
answer
c++ - GCC: Difference between -O3 and -Os
I am quite familiar with GCC -O3 flag, but how it differs from -Os, in which situation we should prefer one over other? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
401
views
1
answer
c++ - How to use C++20's likely/unlikely attribute in if-else statement
This question is about C++20's [[likely]]/[[unlikely]] feature, not compiler-defined macros. This documents ... in an if-else statement? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
251
views
1
answer
c++ - Which sorting algorithm is used by STL's list::sort()?
I have a list of random integers. I'm wondering which algorithm is used by the list::sort() method. E. ... See also this more specific question. 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++ - G++ error:/usr/lib/rpm/redhat/redhat-hardened-cc1: No such file or directory
I'm studying qt on platform Fedora linux, It threw a g++ error as below while I make a sample cpp g++ ... indicate how to do for me please? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
274
views
1
answer
c++ - How to call function after window is shown?
Using Qt I create a QMainWindow and want to call a function AFTER the windows is shown. When I call the ... called before the window is shown. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
279
views
1
answer
c++ - Making QLabel behave like a hyperlink
how can I make a QLabel to behave like a link? What I mean is that I'd like to be able to click on ... this would invoke some command on it. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
303
views
1
answer
c++ - How do I convert boost::posix_time::ptime to time_t?
Is there some "standard" way or the best I can do is to compute it directly by subtracting from gregorian::date(1970,1,1)? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
408
views
1
answer
c++ - std::max - expected an identifier
I'm having a problem with std::max. I can't figure it out. int border = 35; int myInt = 2; int myOtherInt ... error : '::' What is wrong? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
171
views
1
answer
c++ - STL deque accessing by index is O(1)?
I've read that accessing elements by position index can be done in constant time in a STL deque. As far ... common implementation for a deque? 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++ - Are mutex lock functions sufficient without volatile?
A coworker and I write software for a variety of platforms running on x86, x64, Itanium, PowerPC, and ... it invulnerable to caching issues? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
211
views
1
answer
c++ - Does dereferencing a pointer make a copy of it?
Does dereferencing a pointer and passing that to a function which takes its argument by reference create a copy of the object? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
259
views
1
answer
c++ - Does std::array<> guarantee allocation on the stack only?
Is std::array<int,10> (without myself using new) guaranteed to be allocated in the stack rather then the ... use new inside its implementation. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
519
views
1
answer
c++ - What does this error mean: "error: expected specifier-qualifier-list before 'type_name'"?
I've been working on the Cell processor and I'm trying to create a struct that will hold an ... uintptr32_t args; } PTHREAD_BLOCK; See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
Page:
« prev
1
...
253
254
255
256
257
258
259
260
261
262
263
...
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] javascript - How does one convert text math (or asciimath) to Latex in Node.js
[2] C# Array Copy from Utils.CopyArray, my source code won't convert
[3] javascript - Populate SELECT options with Ajax and Django
[4] react-native 部分华为机型闪退 添加googlePlayServicesVersion 的疑问?
[5] TS + react ,设置别名vscode报错
[6] mac版VMware远程桌面连接直接显示桌面已断开连接
[7] uni-app在IOS下使用webview拉起H5支付难道无解了吗?
[8] nginx配置 访问https接口
[9] dynamic data - use dinamic value in email template net core
[10] javascript - object` ("[object Response]") cannot be serialized as JSON?
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
...