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--- cpp:templates [2019/05/14 10:24]
gthanos
+++ cpp:templates [2020/05/30 17:45]
@@ Line 1: / Line 1: @@
-====== Templates ======
-  - [[cpp::function_templates| Templates συναρτήσεων]]
-  - [[cpp::class_templates| Templates κλάσεων]]
-  - [[cpp::class_templates_specialization| Εξειδίκευση ενός template]]
-Στα παραδείγματα που ακολουθούν χρησιμοποιούμε τη βοηθητική κλάση **Student** που δίνεται παρακάτω:
-<code cpp Student.hpp>
-#ifndef _STUDENT_HPP_
-#define _STUDENT_HPP_
-#include<cstring>
-class Student {
-  char *name;
-  int aem;
-public:
-  Student(const char *name, int aem);
-  Student();
-  Student(const Student& );
-  Student(const Student* );
-  ~Student();
-  char *getName() const;
-  int getAEM() const;
-  void setName(const char *name);
-  void setAEM(int aem);
-  friend std::ostream& operator<<(std::ostream& out, const Student & st);
-  bool operator>(const Student& st) const;
-  Student& operator=(const Student& st);
-};
-Student::Student(const char *name, int aem) {
-  this->name = new char [strlen(name) + 1];
-  strcpy(this->name, name);
-  this->aem = aem;
-}
-Student::Student(const Student& st) {
-  name = new char [strlen(st.name) + 1];
-  strcpy(name, st.name);
-  aem = st.aem;
-}
-Student::Student(const Student* st) {
-  name = new char [strlen(st->name) + 1];
-  strcpy(name, st->name);
-  aem = st->aem;
-}
-Student::Student() {
-  this->name = nullptr;
-  this->aem = 0;
-}
-Student::~Student() {
-  if(name != nullptr)
-    delete []name;
-}
-char* Student::getName() const {
-  return name;
-}
-int Student::getAEM() const {
-  return aem;
-}
-void Student::setName(const char *name) {
-  if(this->name != nullptr)
-    delete this->name;
-  this->name = new char [strlen(name) + 1];
-  strcpy(this->name, name);
-}
-void Student::setAEM(int aem) {
-  this->aem = aem;
-}
-Student& Student::operator=(const Student& st) {
-  if(name != nullptr)
-    delete name;
-  name = new char [strlen(st.name) + 1];
-  strcpy(name, st.name);
-  aem = st.aem;
-  return *this;
-}
-std::ostream& operator<<(std::ostream& out, const Student& st) {
-  if(st.name != nullptr)
-    out << st.name << " " << st.aem;
-  return out;
-}
-bool Student::operator>(const Student& st) const {
-  if(aem > st.aem)
-    return true;
-  return false;
-}
-#endif
-</code>

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