std::map<Key, T, Compare, Alloc>::size_type erase_if( std::map<Key, T, Compare, Alloc>& c,Pred pred );(C++20 起) 从c 中擦除所有满足谓词 pred 的元素。 等价于 auto old_size = c.size(); for (auto first = c.begin(), last = c.end(); first != last;) { if (pred(...
#include <map>#include <iostream>intmain(){std::map<int,std::string>c={{1,"one"},{2,"two"},{3,"three"},{4,"four"},{5,"five"},{6,"six"}};// 从 c 移除所有奇数for(autoit=c.begin();it!=c.end();){if(it->first%2!=0)it=c.erase(it);else++it;}for(auto&p:c)st...
unordered_map::size unordered_map::max_size unordered_map::empty Modifiers unordered_map::clear unordered_map::erase unordered_map::swap unordered_map::extract (C++17) unordered_map::merge (C++17) unordered_map::insert unordered_map::insert_range ...
map::clear map::insert map::erase map::swap map::extract (C++17) map::merge (C++17) map::insert_range (C++23) map::insert_or_assign (C++17) map::emplace (C++11) map::emplace_hint (C++11) map::try_emplace (C++17) Lookup map::count map::find map::contains (C++20) map::...
cppreferencecomMaps是一种关联式容器包含“关键字begin返回指向map头部的迭代器clear删除所有元素count返回指定元素出现的次数empty如果map为空则返回trueend返回指向map末尾的迭代器equalrange返回特殊条目的迭代器对erase删除一个元素find查找一个元素getallocator返回map的配置器insert插入元素keycomp返回比较元素key的函数...
1、容器(Containers):各种数据结构,如:序列式容器vector、list、deque、关联式容器set、map、multiset、multimap。用来存放数据。从实现的角度来看,STL容器是一种class template。 2、算法(algorithms):各种常用算法,如:sort、search、copy、erase。从实现的角度来看,STL算法是一种 function template。注意一个问题:任何...
erase(0, 1); } osv.push_back(SString<char>((*infiles)[i])); } } else { parseFastas(*infiles, osn, osnLen, osv, osvLen); } os = &osv; } else { assert(origs != NULL); os = origs; } // Go through the loaded reference files base-by-base and // sanity check ...
const const_iterator erase (const const_iterator &ite) void dumpAsInt () Additional Inherited Members Static Public Member Functions inherited from LDObject Static Public Attributes inherited from LDObject Detailed Description template<class _KeyT, class _ValT> class live2d::LDMap< _KeyT, _ValT...
const const_iterator erase (const const_iterator &ite) void dumpAsInt ()Additional Inherited Members Static Public Member Functions inherited from LDObject Static Public Attributes inherited from LDObjectDetailed Descriptiontemplate<class _KeyT, class _ValT> class live2d::LDMap< _KeyT, _ValT >The...
erase()函数删除在pos位置的元素,或者删除在start和end之间的元素,或者删除那些值为key的所有元素。 语法: iteratorfind( constKEY_TYPE&key ); find()函数返回一个迭代器指向键值为key的元素,如果没找到就返回指向map尾部的迭代器。 get_allocator 语法: ...