WebMay 16, 2024 · If you don't want to have the dependency on C++11 standards, I can provide a revert patch to revert the unordered_map change if you prefer. Otherwise we can just add a compile flag to move forward. All reactions WebJan 10, 2024 · unordered_map in C++ STL. unordered_map is an associated container that stores elements formed by the combination of a key value and a mapped value. The key value is used to uniquely identify the element and the mapped value is the content associated with the key. Both key and value can be of any type predefined or user-defined.
std::unordered_map - cppreference.com
WebOct 31, 2024 · But what you really want is to just let to compiler make it for you: firstSets.insert (std::make_pair (decl, declFirstSet)); or use an easier syntax: firstSets [decl] = declFirstSet; EDIT AFTER UNDERSTANDING THE PROBLEM On the otherhand, you want firstSets to come with initial content you can reorder the declarations: #include … WebDec 4, 2024 · // glm::ivec2s are not hashable by default, so they cannot be used as keys. std::unordered_map< int64_t, uPtr> m_chunks; // We will designate every 64 x 64 area of the world's x-z plane // as one "terrain generation zone". Every time the player moves // near a portion of the world that has not yet been generated // (i.e. its lower-left ... great vacation retreats koloa
Installation issue - error:
WebYou can't execute arbitrary expressions at global scope, so you should put . mymap.reserve(7000); inside main. This is also true for other STL containers like map and vector. WebOct 21, 2015 · 1. As stated in the comments: you are attempting to use unordered_set without qualifying the namespace it comes from. Your compiler thus doesn't know what type it is. This works when you copy your declaration of test into classTest.cpp because that file has a using namespace std. You should always qualify your types with their namespace … WebJan 9, 2024 · C++ error: 'unordered_map' does not name a type. c++ types unordered-map. 51,885 Solution 1. Compile with g++ -std=c++11 (my gcc version is gcc 4.7.2) AND. #include #include using namespace std; //global variable unordered_map mymap; int main() { mymap.reserve(7000); // <-- try putting … florida business directory search