stdvector

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How to shuffle a std::vector?

I am looking for a generic, reusable way to shuffle a std::vector in C++. This is how I currently do it, but I think it\'s not very efficient because it needs an intermediate array and it needs to kno[详细]

2023-03-25 03:39 分类：问答
stdvector inserting and erasing problem

I need to control the amount to touch points in my application, for this I am using a vector container and my basic setup is this:[详细]

2023-03-23 03:49 分类：问答
How to get a pointer to a 2D std::vector's contents

Given std::vector<char> theVec I can get the pointer as follows char* cc = &theVec[0] What if the vector is declared as follows:[详细]

2023-03-21 06:03 分类：问答
How to use a std::vector in a C function

A C function expects an array of buffers to be in scope at runtime. e.g. char values[x][y] The C function will populate the buffers[详细]

2023-03-20 22:18 分类：问答
std::map< MyClass, std::vector<MyClass> > Segment fault. Oddness

开发者_运维问答SOLVED: Thanks figured it out thanks to dominic hamon. It all boils down to trying to call a function on a kinda null object. It could use parts of the object but not others.[详细]

2023-03-19 18:16 分类：问答
multiple threads with Vector iterator

I \'ve declared a vector as typedef std::vector< unsigned int > SampleList; anddeclared Samplist type member variable in a class.[详细]

2023-03-17 21:50 分类：问答
Why does an empty vector call the value type's default constructor?

Using g++, I observe that creating a vector of size zero calls the vector\'s parameterized object type\'s constructor once. It then is deleted. Why does this happen?[详细]

2023-03-15 18:54 分类：问答
C++ pointer to a vector of objects, need to access attributes

I have a vector called actorVector which sto开发者_C百科res an array of objects of type actorManager.[详细]

2023-03-13 12:40 分类：问答
How does std::vector copy objects to its internal storage

I have the following problem: void add(){ cRow Row(); Row.add(\"Column\", \"Value\"); std::vector<cRow> mRows;[详细]

2023-03-13 04:24 分类：问答
Win32 API vector problem in callback

In the WndProc callback of my program I\'m doing this to store a mouse click in a vector: case WM_LBUTTONDOWN:[详细]

2023-03-12 10:41 分类：问答