Unable to assign member on a read-only object

Incrementing A Data Element In The Entire Read-only Structure

Hello, thanks for taking the time to watch this.

The code below is part of the definition and implementation of my learning.

So my question is why do I get an error increment of data-member in read-only structure when incrementing the private data member numGrades (line 12) but not assigning a value to the associated private data *grades (line 11)?

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8< br>9, 10, 11, 12, 13, 14,
//Definition
Private:
integer *notes;
int note numbers;

General:
Student1 &addGrade(int ) const;

// Implementation
Student1 &Student1::addGrade(int g ) const
gradations[numGrades] is equal to g;
number of Notes++;
return *this;

Line 11 doesn’t change the “notes”… understand that it changes what the notes point to. Even if the notes are relentless (which is the case in the const function), this does not mean that what they point to is permanent.

Is there a way to change numGrades when I call the new addGrade member function?

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public:
Student1(const char *);
~Student1();
void displayGrades() const;
Student1 &addGrade(int ) const;
static int getNumStudents();

Ok, please, if anyone can help you... this is the definition of Elan that I have.

My traditional problem is increasing numGrades giving me an error. Or is my logic for implementing what was delivered obviously wrong?

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8< br>9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
// Given
Class Student1

private:
integer *notes;
char *name;
int note numbers;
integer idNum;
static int numStudents;

public:
Student1(const char *);
~Student1();
void displayGrades() const;
Student1 addGrade(int);
static GetNumStudents();

;
int readabilitydatatable="0">

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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< br>
#include"student1.h"
#include
#include
c std::cout;
using Student1::numStudents std::endl;

integer is 0;Student1::Student1(const char *n)
name = new char[strlen(n)];
strcpy(name, n);
idNum = number of students;
numberStudents++;
numeric notes = 0;


student1::~student1()

void Student1::displayGrades() const
cout << "\nDisplay notes matching " << name << " personality " << idNum + 1 << ":" ;
for(int just type i = 0; i < numGrades; i++)
cout << "\nNote " << i+1 << "= " << Grades[i];
cout<int g )
grades[numGrades] means g;
number of Notes++;
return *this;


int Student1::getNumStudents() return numStudents; 

Student1::grades is never a valid storage from the idea, so line 28 will always fail.
Student1::~Student1() leaks memory for Student1::name.
in general
Student1::addGrade() returns a concrete copy of *this, which causes problems because you haven't defined a concrete copy constructor and the class handles the affected pointers.

Moreover, you are bribing big business. You don't give the "name" enough room to breathe. You should allocate up to 1 extra for the null delimiter.

Of course, inAll of the following headaches would go away if your family used std::string instead of char arrays.

I'm working on a worm_sim simulator, ubuntu, gcc, IDE codeblocks

class: public traffic_source Buffer_owner, public connector, public receiver
Private:
    static unsigned int base_id;
    unsigned integer identifier;
    unsigned integer burst_size;
    unsigned integer flit_size;
    double rate_of_packet_generation;
    interval pkt_id;
    traffic_source_state ts_state;
    double* packet_to_destination_rate;
    driving mode driving mode;
    int period; // Time period to create small states with trace_file
    trace file ifstream;
    int trace_file_loop_cnt; // How many times have we already gone through the trace file
    logical trace file_empty;
    stream trace_dump; // Trace the file for safe deletion

    typedef message
        timestamp;
        unsigned target;
        unsigned integer size;
     message, *pmessage;

    message pre_fetched_message;
    boolean get_next_message(message and message);

    unsigned integer get_destination_uniform(void) const;
    unsigned integer get_destination_transpose1(void) const;
    unsigned integer get_destination_transpose2(void) const;
    unsigned integer get_destination_hotspot(void) const;
    unsigned int get_destination_customized (void) const;

    void generate_a_packet (unsigned integer dst_id);
    reset generate_packets(const Message & rec);

General:
    Traffic_source(position p, int buf_sz);
    ~Traffic source();
    bool can_send(void) const;
    bool can_receive(void) constant restore is invalid;
    bool send (empty);
    bool Receive(class Flit * a_flit) False return;
    Class Connector * get_receiver(void) const;

    static void reset_base_id(void) base_id is 0;

    useless (empty) checkbox;

    /* visitor control procedures */
    void set_packet_generating_rate(double r);
    invalid set_packet_to_destination_rate(unsigned integer dst_id, double rate);
     get_packet_to_destination_rate (unsigned integer dst_id) const;
     get_total_packet_injection_rate(void) constant;
    int set_trace_file(char * filename);
    bool has_trace_file(void) rewind(trace_file.is_open());
   int get_id(void) constant return id;
;
Traffic_source::Traffic_source(Position p,Int buf_sz): Buffer_owner(buf_sz), Recipient(p)
id means id_base++;
package_generating_rate is equal to param.packet_generating_rate;
package_size is param.flits_per_packet;
flit_size means param.flit_size;
traffic_mode implies param.traffic_mode;
dot signNo 0;
package_to_destination_rate is 0;
pkt_id is 0;
ts_state is OFF_

once (param.dump_traffic_source_trace)

bool Traffic_source::can_send(void) const

int router_id=get_id();
unsigned integer local_availability;

pRouter a_router= param.network->get_router(router_id);
local_availability=a_router->get_port_availability(0);
//cout<arrived_in_this_cycle())
return false;

pConnector Receiver = get_receiver();

if (recipient)
Return receiver->can_receive();
different
return badly;