const int inf=0x3f3f3f3f -- 声明 inf 是 const int型 , const 表示 inf 一旦有了值以后就不允许（通过赋值 来）改变它的值。没有其他意思，就是定义一个“只读”的整型变量 inf，它的值是十六进制的3f3f3f3f。仅此而已。用来代表无穷大
在翻转的时候,再另外创建一个数组指向s2,这样再赋值,如果直接移动s2,原来的首地址不好找回 1#include<iostream>2#include<string>3#include<iomanip>4#include5#include<vector>6#include<cmath>7#include<list>8#include<stdlib.h>9#include<ostream>10#include<set>11#include<queue>12#include<stack>13#inclu...
所以const int & 作为函数参数，是能够承载 3 这种常量输入的，而 int & 就只能承载一个变量，无法承...
Version 2.0 (the "License");#include #include #include #include "pcre2posix.h"using std::string;extern "C" int LLVMFuzzerTestOneInput(const unsigned char *data, size_t size) { if (size < 1) return 0; regex_t preg; string str(reinterpret_cast(data), size); string pat(str); int...
0x7ff808a3a0ff mach_msg + 19 4 CoreDisplay 0x7ff80ab3f272 CoreDisplay::Mach::Message::Receive(unsigned int) + 80 5 CoreDisplay 0x7ff80abf8939 CoreDisplay::Mach::Server::Start() + 105 6 CoreDisplay 0x7ff80abf8a02 void* std::__1::__thread_proxy[abi:ne180100]<std::__1::tuple...
{ "@babel/helper-plugin-utils": "^7.8.0" }, @@ -453,6 +452,8 @@ "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-bigint/-/plugin-syntax-bigint-7.8.3.tgz", "integrity": "sha512-wnTnFlG+YxQm3vDxpGE57Pj0srRU4sHE/mDkt1qv2YJJSeUAec2ma4WLUnUPeKjyrfntVwe/N6dCXpU...
+ setState(() {}); + } + + void _onSelect(MenuMeta meta) { + activeId = meta.id; + setState(() {}); + } + + void _onDelete(MenuMeta value) { + if (items.length == 1) return; + int index = items.indexWhere((e) => e.id == activeId); + int newActiveIndex = ...