[英]C++ ERROR No matching function for call
我一直在進行Qt分配,並且已經完成了整個任務,但是我似乎無法修復一個最終的錯誤,該錯誤使我的程序無法運行。
錯誤是:
no matching function for call to 'Vendor::Vendor(QString&, QString&, bool&)'
Vendor supplierInfo(supplierNmae,supplierEmail,supplierIsManufacturer);
line 41 ^
它由兩個類組成,但是只有我的供應商類和主類受此錯誤影響。
這是我的main.cpp的代碼:
#include <QCoreApplication>
#include "vendor.h"
#include "product.h"
#include <QString>
#include <QTextStream>
QTextStream cout(stdout);
QTextStream cin(stdin);
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
//Declare variables
QString productName;
double productPrice;
QString supplierName;
QString supplierEmail;
QString supplierIsManufacturerStr;
bool supplierIsManufacturer;
//Get user input
cout << "Enter the product name:\t";
productName = cin.readLine();
cout << "Enter the product price:\tR";
cin >> productPrice;
cout << "Enter the supplier name:\t";
supplierName = cin.readLine();
cout << "Enter the supplier email:\t";
cin >> supplierEmail;
cout <<"Is the supplier a manufacturer:\t";
cin >> supplierIsManufacturerStr;
if(supplierIsManufacturerStr.at(0).toLower() == 'y') {
supplierIsManufacturer = true;
} else {
supplierIsManufacturer = false;
}
//Implement classes
Vendor vendor(supplierName, supplierEmail, supplierIsManufacturer);
Product product(productName, productPrice, vendor);
product.setSupplier(supplierName, supplierEmail, supplierIsManufacturer);
product.toString(supplierIsManufacturer);
return a.exec();
}
這是我的vendor.h文件的代碼:
#ifndef VENDOR_H
#define VENDOR_H
#include <QString>
class Vendor {
public:
Vendor();
void setDetails(QString name, QString email, bool isManufacturer);
bool isManufacturer();
QString getName();
QString toString();
private:
QString m_Name;
QString m_Email;
bool m_IsManufacturer;
};
#endif // VENDOR_H
我仍然回到有關使用類的領域,所以我還很不實踐,希望能對此給予任何幫助。 先感謝您。
Vendor
類缺少與main.cpp中的行匹配的構造函數。 要么實現構造函數:
// Vendor.h
class Vendor {
public:
Vendor();
Vendor(const QString& name, const QString& email, bool isManufacturer);
...
// Vendor.cpp
Vendor::Vendor(const QString& name, const QString& email, bool isManufacturer)
: m_Name(name), m_Email(email), m_IsManufacturer(isManufacturer)
{}
或使用現有的setDetails
函數:
Vendor vendor;
vendor.setDetails(supplierName, supplierEmail, supplierIsManufacturer);
供應商中的初始值設定項功能需要重寫,並將其參數傳遞給setDetails
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