error: C2059: syntax error : '{' - c++

Question

I would like to run an application in qt creator. But when i click on build, it showing error in carddetect.cpp
The error occurs here: void CardDetect::aamvaIssuerList()
But I can't find out what that error is.
124: error: C2059: syntax error : '{'
124: error: C2143: syntax error : missing ';' before '{'
124: error: C2143: syntax error : missing ';' before '}'
This is my code:
#include "carddetect.h"
#include <QDebug>
void CardDetect::aamvaIssuerList(){
issuerList [ "636026" ] = (struct issuer) {"Arizona", "AZ", "L"};
issuerList [ "0636021"] = (struct issuer) { "Arkansas", "AR", "" };
issuerList [ "636014" ] = (struct issuer) { "California", "CA", "L" };
issuerList [ "636020" ] = (struct issuer) { "Colorado", "CO", "NN-NNN-NNNN" };
issuerList [ "636010" ] = (struct issuer) { "Florida", "FL", "LNNN-NNN-NN-NNN-N" };
issuerList [ "636018" ] = (struct issuer) { "Iowa", "IA", "NNNLLNNNN" };
}
and carddetect.h is
#ifndef CARDDETECT_H
#define CARDDETECT_H
#include <QMap>
#include "magcard.h"
struct issuer {
QString name;
QString abbreviation;
QString format;
};
class CardDetect {
public:
CardDetect( MagCard *_card = 0 );
void setCard( MagCard *_card );
private:
MagCard *card;
void processCard();
void luhnCheck();
void creditCardCheck();
void aamvaCardCheck( QString expDate );
void aamvaIssuerList();
QMap<QString,struct issuer> issuerList;
};
#endif // CARDDETECT_H
That code working #keltar
but now in this function
void CardDetect::aamvaCardCheck( QString expDate ) {
if( card->encoding == IATA )
return; //we're only going to support ABA for now
struct issuer issuerInfo;
QString iin = card->accountNumber.left( 6 );
issuerInfo = issuerList.value( iin );
if( issuerInfo.name.isEmpty() ) {
iin = card->accountNumber.mid( 1, 6 );
issuerInfo = issuerList.value( iin );
if( issuerInfo.name.isEmpty() )
return; // this is not a known AAMVA card, abort
}
It showing error
error: C2512: 'issuer' : no appropriate default constructor available
error: C2512: 'issuer::issuer' : no appropriate default constructor available
in struct issuer issuerInfo;

Answer 1

Since you cannot use compound literals, here is an example of how it could be done:
Add constructor to your structure:
struct issuer {
issuer(const char *nm, const char *abbr, const char *fmt) : name(nm),
abbreviation(abbr), format(fmt) {}
QString name;
QString abbreviation;
QString format;
};
And change your function to:
void CardDetect::aamvaIssuerList(){
issuerList [ "636026" ] = issuer("Arizona", "AZ", "L");
// same for the rest of the lines
}
There are other ways to do the same, of course.