Recent questions tagged C++

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c++ - calculate the sum of diagonals in a matrix

I need to calculate the sum of two diagonals in a matrix in C++, I already have a solution for that but I must be ... ); cin.get(); return 0; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Move text cursor to particular screen coordinate?

How can I set the cursor at the desired location on the console in C or C++? I remember a function ... deprecated. Is there any alternative? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Can you use Boost.Regex to parse a stream?

I was playing around with Boost.Regex to parse strings for words and numbers. This is what I have so far: ... be possible to use any iterator. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - glfw3 compiling undefined references

I have a problem with compiling my program which uses glfw3 library. I'm getting list of errors of undefined references ... and how to fix it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - How to initialize a std::array<char, N> with a string literal omitting the trailing ''

I have a file structure where fixed length strings have no trailing zero. How to initialize fields as std::array ... ' }; #pragma pack(pop) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - How to branch/switch on multiple conditions?

Is there a way to branch on multiple condition without writing code that looks like a mess? Syntaxic sugar in C++11 or ... ") << std::endl; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Using fstream Object as a Function Parameter

#include <iostream.h> #include <fstream.h> #include <stdlib.h> void vowel(fstream a){ char ch; int ctr = 0; ... work the way I am trying. Rick See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - For loop index type deduction best practice

Let's say, I have a container c of a type that provides a size() method and I want to loop over this ... only the type of the index' limit. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Forward declaration include, on top of declaration include (ClassFwd.h + Class.h)

In Effective C++ (3rd edition), Scott Meyers, in Item 31, suggests that classes should have, on top of ... make me agree with Scott Meyers. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Sorting digits of an integer

You are given an integer 51234 (say) we need to sort the digits of a number the output will be 12345. How to do it without using array ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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319 views

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c++ - Understanding the warning: binding r-value to l-value reference

I want to pass a struct by reference so it won't be copied, but Resharper is giving the warning below: struct ... way to not have this warning? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - printing all binary trees from inorder traversal

Came across this question in an interview. Given inorder traversal of a binary tree. Print all the possible binary trees ... ; cout<<endl; } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - How to statically link libstdc++

I am trying to get my program working in another machine where libstdc++ versions is different. I am developing ... libstdc++ link? Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - How to access Windows shell context menu items?

In Windows Explorer, you right click on a file, a context menu shows up which contains built-in items ... solution will be much appreciated! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ library with c interface

i need to write a library in c++ , usable by client to do some operations in a remote server. The only ... class? Thx in advice for answer. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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246 views

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c++ - Class prototyping

I have put several instances of class b in class a but this causes an error as class a does not know what class ... can i do this with a class. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - std::ofstream with std::ate not opening at end

I am trying to open a file for output and append to it. After appending to it, I want to move my ... ? Any insight would be appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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496 views

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c++ - std::stoi missing in g++ 4.7.2?

I get the error message "stoi is not a member of std" when I try to use std::stoi and try to compile it. ... But there's nothing wrong with it. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Why does removing the _first_ element of a list invalidate `.rend()`?

Tested on Mac OS X using XCode 4.6. This example code shows removing the last element of an std::list works as ... ; // I get __this__ result } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Windows CD Burning API

We need to programatically burn files to CD in a CC++ Windows XP/Vista application we are developing using ... drivers if one is available. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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392 views

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c++ - Virtual Table layout in memory?

how are virtual tables stored in memory? their layout? e.g. class A{ public: virtual void doSomeWork(); }; class ... A and class B in memory? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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550 views

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c++ - ERROR: LNK 2019 : unresolved external symbol _imp_CrtDbgReportw in Visual Studio

I have written a program that splits a string when the respective delimiter occurs. But a different error is ... . Please anyone help me. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Double to int conversion behind the scene?

I am just curious to know what happens behind the scene to convert a double to int, say int(5666.1) ? ... during the process and expensive too. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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299 views

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c++ - How to implement folding with variadic templates

I have an almost working solution. However, it fails to compile some simple cases, and I can't decipher the error ... ? Is this a compiler bug? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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241 views

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c++ - Detecting if casting an int to an enum results into a non-enumerated value

Let's say I have something like this : enum CardColor { HEARTS, DIAMONDS, CLUBS, SPADES}; CardColor MyColor = ... , CLUBS = 4, SPADES}; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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215 views

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c++ - Determining the difference between dates

I'm trying to figure out a way for my program to take a date (like February 2nd, 2003) and show the ... adding and subtracting a single day. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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227 views

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c++ - How to run Qt 5 applications on other computers (Windows 7)

I have developed a simple application with Qt 5.0.2 on Windows 7 Ultimate. As a compiler the QtCreator used ... , no error nothing at all. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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645 views

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c++ - __declspec(dllimport) how to load library

http://msdn.microsoft.com/en-us/library/9h658af8.aspx MSDN says I can export function from the library with ... where to find this function? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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