stdvector

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Putting a C++ Vector as a Member in a Class that Uses a Memory Pool

I\'ve been writing a multi-threaded DLL for database access using ADO/ODBC for use with a legacy application. I need to keep multiple database connections for each thread, so I\'ve put the ADO objects[详细]

2022-12-25 06:55 分类：问答
Which constructor of std::vector is used in this case

This looks simple but I am confused: The way I create a vector of hundred, say, ints is std::vector<int>*pVect = new std::vector<int>(100);[详细]

2022-12-23 06:47 分类：问答
Vector of vectors of T in template<T> class

Why this code does not compile (Cygwin)? #include <开发者_如何学JAVAvector> template <class Ttile>[详细]

2022-12-23 03:27 分类：问答
Emacs, C++ code completion for vectors

I am new to Emacs, and I have the following code as a sample. I have installed GNU Emacs 23.1.1 (i386-mingw-nt6.1.7600), installed cedet-1.0pre7.tar.gz. , installed ELPA, and company.[详细]

2022-12-22 23:06 分类：问答
Is the following std::vector code valid?

std::vector<Foo> vec; Foo foo(...); assert(vec.size() == 0); vec.reserve(100); // I\'ve reserved 100 elems[详细]

2022-12-21 20:14 分类：问答
Is std::vector copying the objects with a push_back?

After a lot of investigations with v开发者_开发问答algrind, I\'ve made the conclusion that std::vector makes a copy of an object you want to push_back.[详细]

2022-12-20 03:25 分类：问答
Why can't I index a std::vector in the immediate window?

So, I have a vector std::vector<std::string> lines. I fill this vector up, and can access it like[详细]

2022-12-19 07:50 分类：问答
std::vector insert() reallocation

I was looking through the std::vector code and I found something I didn\'t quite get. When capacity < size() + 1 it needs to reallocate the buffer so it can insert the new element. What it does (as[详细]

2022-12-18 10:05 分类：问答
std::vector reserve method fails to allocate enough memory

I have a buffer class in my C++ application as follows: class Buffer { public: Buffer(size_t res): _rpos(0), _wpos(0)[详细]

2022-12-15 00:55 分类：问答
std::vector::reserve performance penalty

inline void add(const DataStruct& rhs) { using namespace boost::assign; vec.reserve(vec.size() + 3);[详细]

2022-12-12 03:08 分类：问答