C++不区分大小写比较string类似CString.compareNoCase 2012-12-08 21:28 − 使用transform();全转化为小写,然后对比string#include <string>#include <algorithm>using namespace std;namespace BaseFunc{ ... 大气象 1 13961 转: std::string用法详解 2012-03-28 22:01 − C++中的string 类 简单介...
0相等，复数小于，正数大于 System.out.println("r2 : " + str1.compareTo(str2)); //...
std::swap(std::basic_stringbuf) std::swap(std::basic_stringstream) std::swprintf std::swscanf std::tmpfile std::tmpnam std::ungetc std::ungetwc std::unitbuf std::uppercase std::vfprintf std::vfscanf std::vfwprintf std::vfwscanf std::vprintf std::vscanf std::vsnprintf std::vsprintf ...
#include <unordered_map>#include <string>int main(){// 哈希表默认初始化// 函数原型:unordered_map();// 创建一个空的 unordered_map 容器std::unordered_map<std::string, int> umap1;// 使用列表初始化// 函数原型:unordered_map(initializer_list<value_type>);// 使用初始化列表创建 unordered_map...
读过上面文章的同学会发现std::string和std::any都使用了小对象优化。实际上，std::function也一样使用...
Unicode case folding methods for case-insensitive string comparisons. Used to implement case folding operations on the Symbol and String classes in the Ruby Core implementation in Artichoke Ruby.Focaccia supports full, ASCII, and Turkic Unicode case folding equality and ordering comparisons....
2) 如同用调用str.unsetf(std::ios_base::uppercase)禁用流str中的uppercase标志 这是一个 I/O 操纵符,可用如out<<std::uppercase的表达式对任何std::basic_ostream类型的out或用如in>>std::uppercase的表达式对任何std::basic_istream类型的in调用。
is_trivially_copyable:调用[std::memmove]迁移数据(https://en.cppreference.com/w/cpp/string/byte/memmove),std::vector没有这个逻辑。 否则,循环迁移元素。 std::vector迁移元素时,会根据是否有noexcept move constructor来决定调用move constructor还是copy constructor(之前这篇文章提到过:c++ 从vector扩容看noexce...
std::regex_traits::translate_nocase std::regex_traits::value std::sub_match std::sub_match::compare std::sub_match::length std::sub_match::operators (std::sub_match::str) std::sub_match::str std::sub_match::sub_match std::swap(std::basic_regex) ...
strcmp takes C-style strings, not C++ string objects. The string class has overloaded the relational operators, so you can use < and > to compare them. But if you have your heart set on strcmp, you can do this: x=strcmp(word1.c_str(),word2.c_str()); ...