while std has std::string, to change between them, use following code: // #include <QMessageBox>usingnamespacestd;// #include <fstream>#include<cassert>QStrings2q(std::string&str){autoqs=QString::fromLocal8Bit(QByteArray::fromRawData(str.c_str(),str.size()));returnqs;}QStrings2q...
QString s = "www.amin-ahmadi.com"; First convert it tostd::stringand then use itsc_strmethod, like this: s.toStdString().c_str()
Qt function calls are anywhere from 2x up to 10x slower than the examples above, depending on what function you use. If you don’t believe me, do the tests yourself. Also undocumented is the speed of some Qt functions. For examples from the QString class, the functions to convert to ...
Crash Report This crash report was reported through the automatic crash reporting system 🤖 Traceback TypeError: unable to convert a Python 'int' object to a C++ 'QString' instance TypeError: unable to convert a Python 'int' object to a C...
namespace nlohmann { template<> struct adl_serializer<QString> { static void to_json(json &j, const QString &s) { j = s.toStdString(); } static void from_json(const json &j, QString &s) { s = QString::fromStdString(j.get<std::string>()); } }; template<typename T> struc...
tojson的最后两个参数控制 Qt支持 修改config.h,开启XTOSTRUCT_QT这个宏 当前支持 QString/QMap/QList/QVector xml bson libconfig 如果需要这些功能,需要修改config.h来开启 不支持直接转换vector/map之类的,需要放结构体里面 由于xml/libconfig不支持用纯数字作为key,所以如果需要用map<int, xxx>,那么key需要用...
我们将简单地使用一个 Q 字符串并使用 Qstring 类的 “toInt” 预构建方法将其转换为十六进制,然后提供一个 OK 指针来检查转换是否已成功执行。 Ok指针仅用于检查错误,不会影响QString int到HexaDecimal的转换。 示例 C++14 // use the qtcore tool to run this code#include<bits/stdc++.h>usingnamespace...
#include <bits/stdc++.h> using namespace std; // Source class, i.e // class that will be converted to another class class Class_type_one { string a = "GeeksforGeeks"; public: // Member function which returns // string type data string get_string() { return (a); } // Member ...
Convert between json string and c++ object. json字符串和c++结构体之间互相转换 - GitHub - abcz316/x2struct: Convert between json string and c++ object. json字符串和c++结构体之间互相转换
#include<iostream>#include"x2struct/x2struct.hpp"//include this header fileusingnamespacestd;structUser{int64_tid; string name; string mail;User(int64_ti=0,conststring& n="",conststring& m=""):id(i),name(n),mail(m){}XTOSTRUCT(O(id, name, mail));//add XTOSTRUCT at the end ...