Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Ask a Question
Welcome To Ask or Share your Answers For Others

Categories

Recent questions tagged C++

0 votes
234 views
1 answer
c++ - A reference can not be NULL or it can be NULL?
    I have read from the Wikipedia that: References cannot be null, whereas pointers can; every reference refers ... Please elaborate this point. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
481 views
1 answer
c++ - Difference between cin and cin.get() for char array
    I have these 2 codes: char a[256]; cin>>a; cout<<a; and char a[256]; cin.get(a,256);cin.get() ... someone explain for every case ! Thank you. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
625 views
1 answer
c++ - How to Create a android native service and use binder to communicate with it?
    My basic task is to create a native service in android and then write a simple native program to test it. lets ... and if needed in Java also. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
392 views
1 answer
c++ - Deletion of pointer to incomplete type and smart pointers
    When trying to use an auto_ptr with a type that was declared with forward-declaration, like this: class A; ... ... . How can that be explained? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
516 views
1 answer
c++ - Exception vs. error-code vs. assert
    I'm working on a library that generates reports of devices. The generate_report (const std::string& no) member ... unexpected. Any advice? :) See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
196 views
1 answer
c++ - Variadic templates
    C++0x will allow template to take an arbitrary number of arguments. What is the best use of this feature other than implementing tuples ? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
548 views
1 answer
c++ - Implementing Move Constructor by Calling Move Assignment Operator
    The MSDN article, How to: Write a Move Constuctor, has the following recommendation. If you provide both a ... the move assignment operator? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
454 views
1 answer
c++ - How to check if two types are same at compiletime(bonus points if it works with Boost strong typedef)
    I was wondering if it is possible to check if 2 types are same at compile time. What I came up with is(idk if ... standard(I would bet not :))? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
282 views
1 answer
c++ - Can different optimization levels lead to functionally different code?
    I am curious about the liberties that a compiler has when optimizing. Let's limit this question to GCC and C/ ... send bounty to someone else.) See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
520 views
1 answer
c++ - How memset initializes an array of integers by -1?
    The manpage says about memset: #include <string.h> void *memset(void *s, int c, size_t n) The memset() function fills ... -1 (a 4 bytes value)? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
409 views
1 answer
c++ - fatal error LNK1104: cannot open file 'libboost_system-vc90-mt-gd-1_43.lib'
    Made a new project, added main.cpp and wrote the code at this URL: http://www.boost.org/doc/libs/1_43_0/ ... from the code under windows, VC9? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
343 views
1 answer
c++ - Catch lib (unit testing) and CTest (CMake) integration
    I'm looking for successful example of Catch CatchLib integration with CMake test (Ctest) . as I understand this ... Fraser99's cmake script here See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
256 views
1 answer
c++ - What to put in precompiled header? (MSVC)
    What are the best candidates for a precompiled header file? Can I put STL and Boost headers there, even ... settings to reduce compile times? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
157 views
1 answer
c++ - How to separate CUDA code into multiple files
    I am trying separate a CUDA program into two separate .cu files in effort to edge closer to writing a real ... kernel functions and what not. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
361 views
1 answer
c++ - GCC memory leak detection equivalent to Microsoft crtdbg.h?
    After many years of working on a general-purpose C++ library using the Microsoft MSVC compiler in Visual Studio, ... new way of doing things? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
269 views
1 answer
c++ - Why is inlining considered faster than a function call?
    Now, I know it's because there's not the overhead of calling a function, but is the overhead of calling a ... I'm forgetting something, thanks! See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
438 views
1 answer
c++ - Overload bracket operators [] to get and set
    I have the following class: class risc { // singleton protected: static unsigned long registers[8]; public: unsigned ... How can it be done? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
559 views
1 answer
c++ - How can I include <bits/stdc++> in Xcode
    I have tried to include the header file bits/stdc++ in my C++ code, but it seems the compiler doesn't support it. ... 10.10.2 and Xcode 6.1.1. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
351 views
1 answer
c++ - Why is a POD in a struct zero-initialized by an implicit constructor when creating an object in the heap or a temporary object in the stack?
    The standard and the C++ book say that the default constructor for class type members is called by the ... specially for the third case. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
465 views
1 answer
c++ - What is the optimal size of a UDP packet for maximum throughput?
    I need to send packets from one host to another over a potentially lossy network. In order to minimize packet ... just focusing on MTU alone. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
222 views
1 answer
c++ - How to correctly use std::reference_wrappers
    I am trying to understand std::reference_wrapper. The following code shows that the reference wrapper does not ... the std::reference_wrapper? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
330 views
1 answer
c++ - Should I return an rvalue reference parameter by rvalue reference?
    I have a function which modifies std::string& lvalue references in-place, returning a reference to the input ... transform(...) version? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
325 views
1 answer
c++ - Linker error LNK1104 with 'libboost_filesystem-vc100-mt-s-1_49.lib'
    During the process of linking my program to the boost::filesystem module in release mode I get the next error: ... and not the expected .exe. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
183 views
1 answer
c++ - Why don't I need to check if references are invalid/null?
    Reading http://www.cprogramming.com/tutorial/references.html, it says: In general, references should always be ... anyone shed some light? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
523 views
1 answer
c++ - pimpl idiom vs. bridge design pattern
    I just noticed a new term pimpl idiom, what's the difference between this idiom with Bridge design pattern? I ... anybody give me an example? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
301 views
1 answer
c++ - Fastest method for screen capturing on Linux
    This question is similar to this one Fastest method of screen capturing but for linux/X11. To be more ... suggestions and ideas are welcome See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
267 views
1 answer
c++ - Vim [compile and] run shortcut
    Basically what I want is a keyboard shortcut in vim that lets me [compile and] run the currently being edited C ... it if this was possible! See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
574 views
1 answer
c++ - How to create a variadic generic lambda?
    Since C++14 we can use generic lambdas: auto generic_lambda = [] (auto param) {}; This basically means that ... possible in a std::function ? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
Page:
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

2.1m questions

2.1m answers

60 comments

57.0k users

Most popular tags

Powered by Question2Answer
Donate
Theme by Q2A Market&&OStack.cn
...