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
305
views
1
answer
c++ - Can I use placement new to reset an object within a shared_ptr?
Let's say I have a class. class BigData {...}; typedef boost::shared_ptr<BigData> BigDataPtr; ... object without any additional allocations? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
353
views
1
answer
c++ - How to include .obj files into the project
I have the following question: I was given the task - to build an application. There was a ready file counter ... should the file itself go? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
228
views
1
answer
c++ - Is it well defined to reference a variable before it's constructed
This is similar in spirit to a question that was asked and answered for c. The comments there implied that a ... this appears to work as well. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
369
views
1
answer
c++ - What algorithm should I use for high-performance large integer division?
I am encoding large integers into an array of size_t. I already have the other operations working (add, subtract, ... one beats me to it. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
223
views
1
answer
c++ - std::isinf does not work with -ffast-math. how to check for infinity
Sample code: #include <iostream> #include <cmath> #include <stdint.h> using namespace std; static bool ... improvement opportunity with isNaN See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
336
views
1
answer
c++ - Enable method based on boolean template parameter
I want to implement a private function based on a boolean template parameter. Something like that: #include ... desired behavior with enable_if? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
378
views
1
answer
c++ - Get a font filename based on the font handle (HFONT)
I came across a situation where we needed to know the filename of a font currently in use by a QFont. ... ); FindFontFileName(font.handle()); See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
233
views
1
answer
c++ - What does add_lvalue_reference do?
I have this class that makes a path for a montecarlo simulator where it takes creates paths of integers from ... so any insight is appreciated! See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
756
views
1
answer
c++ - Reading from serial port with Boost Asio
I'm want to check for incoming data packages on the serial port, using boost.asio. Each data packet will start ... want the function to block... See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
262
views
1
answer
c++ - Calling WSAGetLastError() from an IOCP thread return incorrect result
I have called WSARecv() which returned WSA_IO_PENDING. I have then sent an RST packet from the other end. ... retrieving a completion packet. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
301
views
1
answer
c++ - How to set Visual Studio 2012 RC Compiler for Qt instead of MinGW?
Windows 8 x86; Qt 4.8.2; Visual Studio Ultimate 2012 RC See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
303
views
1
answer
c++ - SFINAE : Delete a function with the same prototype
I wonder what is the difference between this code that works : #include <type_traits> #include <iostream> template<typename ... <T> = true ? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
157
views
1
answer
c++ - Why isn't my new operator called
I wanted to see that a dynamically loaded library (loaded with dlopen etc.) really uses its own new an ... program. Thanks to Employed Russian! See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
385
views
1
answer
c++ - Getting a unique_ptr out of a priority queue
I am maintaining a set of unique_ptr instances in a priority_queue. At some point, I want to get the first ... or am I missing something? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
367
views
1
answer
c++ - Avoiding dynamic_cast/RTTI
I was recently working on a piece of C++ code for a side project (the cpp-markdown library, for the curious ... too much about trivialities. :-) See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
159
views
1
answer
c++ - Destructor not invoked when an exception is thrown in the constructor
Why is the destructor not invoked in this code? #include <boost/scoped_ptr.hpp> #include <iostream> class MyClass ... instance of 'int' Aborted See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
214
views
1
answer
c++ - Getting return value from a boost::threaded member function?
I have a worker class like the one below: class Worker{ public: int Do(){ int ret = 100; // do stuff ... of Worker::Do? Thanks in advance. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
360
views
1
answer
c++ - VS2012 : Error with unit test : Assert::AreEqual( object, object ) didn't work
I come to you for a strange problem when I use the Visual Studio Native Unit Test on VS 2012. I've a ... english, is not my native language. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
477
views
1
answer
c++ - __attribute__((init_priority(X))) in GCC
I'm using __attribute__((init_priority(X))) in GCC like this: Type1 __attribute__ ((init_priority (101))) ... big project from Visual Studio. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
261
views
1
answer
c++ - Extract the return type of a function without calling it (using templates?)
I'm looking for a way in C++ to extract the return type of a function (without calling it). I presume this ... a solution so far. Any ideas? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
238
views
1
answer
c++ - Why doesn't auto_ptr construction work using = syntax
I ran into a compiler error that didn't make much sense to me: #include <memory> using namespace std; auto_ptr<Table> ... () : _M_ptr(__p) { } See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
269
views
1
answer
c++ - Const reference to temporary
After reading this article on Herb Sutter's blog, I experimented a bit and ran into something that puzzles me. ... have an explanation for this? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
186
views
1
answer
c++ - On what architectures is calculating invalid pointers unsafe?
int* a = new int[5] - 1; This line by itself invokes undefined behavior according to the C++ standard ... C++ compilers have this issue. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
332
views
1
answer
c++ - How do you erase *AND CONTINUE* using a std::reverse_iterator?
I've been up and down stackoverflow and even the very, very nice Dr. Dobbs article but I can't find a ... an answer to this specific question. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
301
views
1
answer
c++ - Build external library only once with CMake
My C++ projects includes the source code of a third-party library (currently as a git submodule). This library ... not cleaned by make clean ? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
615
views
1
answer
c++ - Get derived type via base class virtual function
I am trying to get the derived type of an object via a base class virtual function. I have written this, which ... to my problem. Thanks again! See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
471
views
1
answer
c++ - Pointer to const char vs char array vs std::string
Here I've two lines of code const char * s1 = "test"; char s2 [] = "test"; Both lines of code ... which situations should I use which approach? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
189
views
1
answer
c++ - Running a process with lowest possible privileges in winapi
I am writing something similar to the http://ideone.com/. Currently I am running user processes with CreateProcess ... with snemarch's links. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
Page:
« prev
1
...
88
89
90
91
92
93
94
95
96
97
98
...
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] Shift Elements of 2D VBA Array
[2] Angular proxy shows request header failed error
[3] 使用window.open打开的页面,如何嵌入js并执行?
[4] r - How to select entire matrix except certain rows and columns?
[5]部分ios fixed定位导致dom元素不显示是怎么导致的呢?
[6] xstream转换xml时出错
[7] apache spark - concatenate array field in one record with all other recodes - pySpark
[8] c++ - PCL - Find the function body of showCloud
[9] Highchart 的气泡图大小怎么设置
[10] javascript - Electron accesing event with web API or another way
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
...