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Difference between const char *p = “some_string” and const char[] = “some_string” in terms of memory allocation [duplicate]

This question already has answers here: What is the difference between char array and char pointer in C? ...

由保莺莺发布于 2021-01-13 09:58:38 c++cc-strings
exception handling in c++ (in if statement)

I have a function takes integer array and integer as a parameter and find the integer in the array. if there is no such a integer it throws ItemNotFoundException. My func works well but how can use this func in if statement. How can I can understand my fu...

由 Alex55发布于 2021-01-13 09:57:24 c++exception
Portaudio bluetooth input buffer always empty

I'm using portaudio to get audio input from a microphone. It's working just fine with the default input device (Realtek). But whenever I choose to use a Bluetooth headset with a microphone (I'm choosing from those with non-zero input channels from Pa_GetDe...

由 1种矜持发布于 2021-01-13 09:56:16 c++portaudio
C++ map iterator over values

I have this code: template <typename Iter> class map_iterator : public std::iterator<std::bidirectional_iterator_tag, typename Iter::value_type::second_type> { public: map_iterator() {} map_iterator(Iter j) : i(j) {} map_iterator& operator++() ...

由秋香先生发布于 2021-01-13 09:50:38 c++hashmapiterator
How can I fix ld: symbol(s) not found for architecture x86_64? [duplicate]

This question already has answers here: ld: symbol(s) not found for architecture x86_64 clang: error: linker command failed with exit c...

由 AK94发布于 2021-01-13 09:47:57 c++x86-64g++
How to get a .png file and render it to the screen with SDL2

I want to load a .png and render it but all I see is SDL_image and that doesn't exist and IMG_Load() doesn't exist too. Also is there a way to do this without anything but SDL2 because I only used SDL2 because it was easy to add to codeblocks. Code: #incl...

由柠檬心发布于 2021-01-13 09:46:23 c++sdltextures
GDB uses wrong addresses for non-pointer type variables

I am trying to debug my hypervisor using GDB server (via VMware). Unfortunately, GDB prints wrong values for non-pointer type variables. For example, I have 2 variables declared as follows: WORD fileType; WORD_PTR pfileType = &fileType; fileType = 5; I ha...

由花样年华发布于 2021-01-13 09:46:06 c++gdbcdebugginggdbserver
How to iterate through a csv file and then split each column into a vector

So I have a CSV with 2 columns - One for A song and one for the artist of that song. For example The Pretender,Foo Fighters In Bloom,Nivana Champagne Supernova,Oasis Starlight,Muse Will We Talk?,Sam Fender I am converting a python program that I wrote a w...

由游欣彤发布于 2021-01-13 09:44:08 pythonc++csvvector
Is There any way so i can compile c++ program on linux and run it on windows? [duplicate]

This question already has answers here: How do I invoke the MinGW cross-compiler on Linux? ...

由深蓝Xx发布于 2021-01-13 09:43:58 c++windowsgcclinuxg++
为什么std：：sort不能与comp函数一起工作？

有人能解释一下为什么main中最后两个排序函数不起作用，而第一个排序函数却很好。程序生成没有错误。代码如下： #include <iostream> #include <vector> #include <math.h> #include <algorithm> using namespace std; bool comp (int a, int b) { if (a % 2 == 0) { return 1; } else { return 0; } } int main() {...

由喂，要爱我发布于 2021-01-13 09:24:27 c++sortingcomparison
opengl数学库候选模板已忽略[关闭]

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由 et_qui发布于 2021-01-13 09:18:31 c++openglglm-math
删除素数c++[关闭]

Closed. This question needs details or clarity. It is not currently accepting answers. ...

由 Oo沁发布于 2021-01-13 09:07:19 c++c++11visual-c++c++17
将模板与虚拟函数一起使用时，无法将变量“ML”声明为抽象类型“MyList<int>”

晚安。 #include <bits/stdc++.h> using namespace std; template <typename T> class MyList { protected: int arraySize; T *arr; public: MyList<T>(){} MyList<T>(int arraySize) { this->arraySize = arraySize; this->arr = new ...

由我是奧特曼发布于 2021-01-13 08:56:59 c++templatesvirtual-functions
分别打印数字，在数字前面打印n次数字

我想有一个整数的数字分开和打印数字n的n次前面的数字 4: 4444 到目前为止，我已经拿到了这张照片，但它打印的是4:3:我不知道如何才能达到我想要的： #include <cstdlib> #include <iostream> #include <math.h> #include <stack> int countDigitsInInteger(int n) { int count =0; while(n>0) { count++; n=n/1...

由释(怀发布于 2021-01-13 08:55:30 c++loops
为什么C++中的ABS-函数导致精度损失[关闭]

Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. ...

由蛋小疼发布于 2021-01-13 08:53:38 c++math
编写自己的GMP C++库[关闭]

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由 sunde发布于 2021-01-13 08:51:29 c++gmp
如何让第二个玩家在一个纸牌游戏c++[关闭]

Closed. This question needs to be more focused. It is not currently accepting answers. ...

由网名已过期发布于 2021-01-13 08:50:50 c++playing-cards
在映射值上自定义迭代器时出现C++错误

我有这个密码： template <typename Iter> class map_iterator : public std::iterator<std::bidirectional_iterator_tag, typename Iter::value_type::second_type> { public: map_iterator() {} map_iterator(Iter j) : i(j) {} map_iterator& operator++() { ++i; ret...

由 ret发布于 2021-01-13 08:50:03 c++hashmapiterator
带指针的词典

I want to write a program that adds words to a lexicon with pointers. However, I must not use strdup(), how can I do that? Below is what I tried but it gives me this error: 在0x7C87EE72处引发异常(ucrtbased.dll)以…的名义文件.exe)：0xc000005:访问冲突写入位置0xcdcd。 The problem i...

由真凝心发布于 2021-01-13 08:49:58 c++arrayspointers
如何在原始图像上绘制对象的骨架？[关闭]

Closed. This question needs details or clarity. It is not currently accepting answers. ...

由旗才艺发布于 2021-01-13 08:47:21 c++opencvqt

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