C++

Forum

 
invalid user-defined

psosmol (71)
Hello, I have a couple of errors and I can not find the cause, I hope somebody can help me!
Thanks

Individual.cc: In member function ‘void Individual::setGene(int, Individual*)’:
Individual.cc:28:33: error: invalid user-defined conversion from ‘Individual*’ to ‘const Individual&’ [-fpermissive]
chromosome->sequence[offset] = gene;
^~~~
Individual.cc:15:1: note: candidate is: ‘Individual::Individual(int)’ <near match>
Individual::Individual(int size)
^~~~~~~~~~
Individual.cc:15:1: note: conversion of argument 1 would be ill-formed:

Individual.cc is:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
 
 #include <iostream>
#include <ctime>
#include <string>
#include <cstdlib>
#include "Individual.h"
#include "Chromosome.h"

using namespace std;

Individual::Individual(string f, string o,int n) // Cuts off digits past size
:factor(f),operacion(o)
{
	chromosome = new Chromosome(n);
}
Individual::Individual(int size)
{
  chromosome = new Chromosome(size);
}

Individual::~Individual()
{
  delete chromosome;
}

Chromosome* Individual::getChromosome(){ return chromosome; }
int Individual::getChromosomeLength(){ return chromosome->getSize(); }
void Individual::setGene(int offset, Individual* gene){ 
	chromosome->sequence[offset] = gene;
}
Individual Individual::getGene(int offset){ return chromosome->sequence[offset]; }
void Individual::setFitness(double fit){ fitness = fit; }
double Individual::getFitness(){ return fitness; }
void Individual::printChromosome()
{
  int size;
  int i;
  size = chromosome->getSize();
  for (i = 0; i < size; i++){
    cout << getGene(i).toString();
  }
void Individual::setFactor(string factor)
{
	this->factor=factor;
}
void Individual::setOperacion(string operacion)
{
	this->operacion=operacion;
}
string Individual::getFactor()
{
	return factor;
}
string Individual::getOperacion()
{
	return operacion;
}
string Individual::toString()
{
	return factor + operacion;
}
string Individual::getFormula(int n)
{	
//	int i = rand()%indiv.size();
//	int j = rand()%indiv.size();
	if (n<=1)
	{	
		//return indiv[j].getFactor();
		return this->getFactor();
	}
	else
	{
		return "("+this->getFactor()+this->getOperacion() + getFormula(n-1)+")";
	}
}
Last edited on
jonnin (11444)
what are you calling setgene with?
psosmol (71)
is the problem that the function setGene use an object of its own class?
coder777 (8444)
The problem is that chromosome->sequence[offset] does not expect a pointer to Individual. So what is sequence?
psosmol (71)
Chromosome.h is:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
#ifndef CHROMOSOME_H
#define CHROMOSOME_H
#include "defs.h"
//#include "Individual.h"

class Individual;
class Chromosome {
friend class Individual;
  public:
    Chromosome(Individual[], int);
      /* Generates chromosome from input array     */
    Chromosome(int);
      /* Generates random sequence of defined size */
    ~Chromosome();
    int getSize();
    Individual* getSequence();
  private:
    Individual* sequence;
    int size;
};
#endif
coder777 (8444)
It's surely confusing that Chromosome has an array of Individual and Individual an array of Chromosome. It doesn't look right.

To solve your problem the assignment looks like this:

chromosome->sequence[offset] = *gene; // In this case '*' is the derefernce operator

The array holds Individual not pointer to Individual.
Topic archived. No new replies allowed.