Error: :-1: error: symbol(s) not found for architecture x86_64; :-1: error: linker command failed with exit code 1 (use -v to see invocation)

[SGaist]

Hi,

Take a look at the compiler panel, what exact symbol is missing ?

[Gabry80]

Sorry but i'm new to Qt and i'm new to C++ also :)

[SGaist]

No problem with that. But without the information I'm asking, it's going to be difficult to help you.

[Gabry80]

This is the compile output(i hope it helps):
11:54:01: Running steps for project Puntatori1...
11:54:01: Configuration unchanged, skipping qmake step.
11:54:01: Starting: "/usr/bin/make"
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -stdlib=libc++ -headerpad_max_install_names -arch x86_64 -Wl,-syslibroot,/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk -mmacosx-version-min=10.10 -Wl,-rpath,@executable_path/Frameworks -Wl,-rpath,/Users/gabrielmometti/Qt/5.9.2/clang_64/lib -o Puntatori1.app/Contents/MacOS/Puntatori1 main.o pointer1.o moc_pointer1.o -F/Users/gabrielmometti/Qt/5.9.2/clang_64/lib -framework QtWidgets -framework QtGui -framework QtCore -framework DiskArbitration -framework IOKit -framework OpenGL -framework AGL
Undefined symbols for architecture x86_64:
"sommaPun(int*, int*)", referenced from:
_main in main.o
"sommaRif(int&, int&)", referenced from:
_main in main.o
"sommaVal(int, int)", referenced from:
_main in main.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [Puntatori1.app/Contents/MacOS/Puntatori1] Error 1
11:54:01: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project Puntatori1 (kit: Desktop Qt 5.9.2 clang 64bit)
When executing step "Make"
11:54:01: Elapsed time: 00:00.

[SGaist]

Where are these methods implemented ?

[Gabry80]

I've implemented the methods into the main file, and i create an header file in witch i declared the variables.

[karlheinzreichel]

@Gabry80 In order to give help it would be necessary to see the code from main (main.cpp / main.h)

[Gabry80]

This is the pointer1.h (Header file)

#ifndef POINTER1_H
#define POINTER1_H

#include <QMainWindow>

int sommaVal(int a, int b); //parametri passati per valore
int sommaPun(int *a, int *b); //parametri passati per puntatore
int sommaRif(int &a, int &b); //parametri passati come indirizzo

namespace Ui {
class Pointer1;

}

class Pointer1 : public QMainWindow
{
Q_OBJECT

public:
explicit Pointer1(QWidget *parent = 0);
~Pointer1();

private:
Ui::Pointer1 *ui;
};

#endif // POINTER1_H

And, this is the Main.cpp

#include "pointer1.h"
#include <QApplication>
#include <string>
#include <iostream>

using namespace std;

int main()
{
int a = 5;
int b = 4;
char carattere;
int rrr = sommaVal(a,b);
cout << "Risultato(Val)=" << rrr << endl;
cout << "a =" << a << endl;
cout << "b =" << b << endl;
cout << "-----------" << endl;
rrr = sommaPun(&a,&b);
cout << "Risultato(Pun)=" << rrr << endl;
cout << "a =" << a << endl;
cout << "b =" << b << endl;
cout << "-----------" << endl;
rrr = sommaRif(a,b);
cout << "Risultato(Rif)=" << rrr << endl;
cout << "a =" << a << endl;
cout << "b =" << b << endl;

fflush(stdin);
scanf("%c", &carattere);

int r;
r = a+b-1;
a = 3;
b = 6;

return r;

/* int s = *a+*b-1;
*a = 3;
*b = 6;

return s;

*/
int t = a+b-1;
a = 4;
b = 6;

return t;

}

[mrjj]

@Gabry80 said in Error: :-1: error: symbol(s) not found for architecture x86_64; :-1: error: linker command failed with exit code 1 (use -v to see invocation):

int sommaVal(int a, int b); //parametri passati per valore
int sommaPun(int *a, int *b); //parametri passati per puntatore
int sommaRif(int &a, int &b); //parametri passati come indirizzo

This is only the defintion.
Where are the bodies ?
Like
int sommaVal(int a, int b) {
..code...
}
seems not to be in main.cpp ?

[Gabry80]

I should review the code...

[mrjj]

@Gabry80
Yep and find the missing implementations :)

[Gabry80]

I have reviewed the code and solved the issues,thank you.