std-pair

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pair<int,int> pair as key of unordered_map issue

My code: typedef pair<int,int> Pair tr1::unordered_map<Pair,bool> h; h.insert(make_pair(Pair(0,0),true));[详细]

2023-02-08 14:04 分类：问答
Sorting a std::vector<std::pair<std::string,bool>> by the string?

How can I sort this vector by comparing the p开发者_JS百科air.first which is an std::string? (without providing a static compare function, nor use boost).std::vector<std::pair<std::string, bool&[详细]

2023-02-02 10:35 分类：问答
find conditions about vectors of pairs

suppose I have a s开发者_高级运维td::vector of pair. How can I use, efficiently, method std::find to see whether at least one element of the vector is not equal to (false, false)?[详细]

2023-01-30 09:22 分类：问答
C++ Storing copy of string in vector of pairs

I have a private attribute in a class that is defined as vector<pair<char *, int> > data;. I add data to this vector with data.push_back(make_pair(p, r));. Later when I go to get the data[详细]

2023-01-19 14:59 分类：问答
struct with 2 cells vs std::pair? [duplicate]

This question already has answers here: Closed 12 years ago. Possible Duplicate: What is the difference between using a struct with two fields and a pair?[详细]

2023-01-14 00:37 分类：问答
Equivalent of C++ STL container "pair<T1, T2>" in Objective-C?

I\'m new to Objective-C, so please don\'t judge me too much. I was wondering: Is there an equivalent of the C++ STL pair container I can use in Objective-C?[详细]

2023-01-12 02:07 分类：问答
converting a variable name to a string in C++

I\'d like to output some data to a file. For example assume I have two vectors of doubles: vector<double> data1(10);[详细]

2023-01-10 07:58 分类：问答
How to convert a sorted std::list of std::pair to a std::map

I have got a std::list< std::pair<std::string,double> >, which I know is sorted according to the std::string ele开发者_开发问答ment.[详细]

2023-01-10 02:37 分类：问答
c++ pair template struct declaration ambiguity!

In definition of pair class in c++ there are two typedefs. what are they for? there are no use of them in the code![详细]

2023-01-05 21:28 分类：问答
c++ Sorting a vector based on values of other vector, or what's faster?

There are a couple of other posts about sorting a vector A based on values in another vector B. Most of the other answers tell to create a struct or a class to combine the values into one object and u[详细]

2023-01-01 20:04 分类：问答