stdmap_开发者

Boost.Assign: using objects with map_list_of?

Using C++ with boost.In Boost.Assign can I use the new operator with map_list_of? For example: std::map<int, MyObject*> objects = boost::assign::map_list_of[详细]

2023-04-08 12:37 分类：问答

how are map iterators invalidated when erasing elements? [duplicate]

This question already has answers here: Iterator invalidation rules for C++ containers (6 answers) Closed 4 years ago.[详细]

2023-04-03 08:23 分类：问答

Change the value in std::map from iterator

My application merges two std::map instances. If there are no duplicates, the merge completes without intervention. However, if a duplicate is detected, then the method asks whether the new value shou[详细]

2023-03-30 23:13 分类：问答

How can I insert a structure as key into a map?

I\'m getting a compiling error for the code below, aft开发者_运维技巧er removing the comment characters from the first insert line. I\'m unable to insert the structure into the map while inserting int[详细]

2023-03-28 21:47 分类：问答

C++ templated map contain itself

I have a templated class, that can have a map type as template parameter. template<typename map_t> class my_开发者_Go百科class[详细]

2023-03-26 17:22 分类：问答

++it or it++ when iterating over a map?

Examples showing how to iterate over a std::map are often like th开发者_Go百科at: MapType::const_iterator end = data.end();[详细]

2023-03-25 19:08 分类：问答

Recommended way to insert elements into map [duplicate]

This question already has answers here: Closed 11 years ago. Possible Duplicate: In STL maps, is it better to use map::insert than []?开发者_开发百科[详细]

2023-03-25 06:20 分类：问答

std::map vs. self-written std::vector based dictionary

I\'m building a content storage system for my game engine and I\'m looking at possi开发者_JS百科ble alternatives for storing the data.Since this is a game, it\'s obvious that performance is important.[详细]

2023-03-22 10:08 分类：问答

Segfault on nth interation through std::map

Solution: See Bo Persson\'s post and my comment below. I am getting a segmentation fault with my map. What confuses me is that the 开发者_StackOverflow中文版n-1 iterations over the keys works but the[详细]

2023-03-22 05:35 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