{"id":182679,"date":"2022-12-01T16:22:12","date_gmt":"2022-12-01T16:22:12","guid":{"rendered":"https:\/\/datascientest.com\/?p=182679"},"modified":"2024-12-13T09:56:43","modified_gmt":"2024-12-13T09:56:43","slug":"langage-c-plus-plus","status":"publish","type":"post","link":"https:\/\/datascientest.com\/langage-c-plus-plus","title":{"rendered":"C++ : \u00c0 quoi sert ce langage informatique ?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"182679\" class=\"elementor elementor-182679\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-53730aa e-flex e-con-boxed e-con\" data-id=\"53730aa\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c23a54f elementor-widget elementor-widget-text-editor\" data-id=\"c23a54f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p><strong>Le C++ est un langage de programmation d\u00e9velopp\u00e9 en 1983 par Bjarne Stroustrup qui voulait \u00ab\u00a0incr\u00e9menter\u00a0\u00bb le langage C (d\u2019o\u00f9 le nom, c++ signifiant \u00ab\u00a0ajouter 1 \u00e0 C\u00a0\u00bb). Ce langage apporte donc de nouvelles fonctionnalit\u00e9s par rapport au C : programmation orient\u00e9 objet, classes, templates etc., toutes ces notions seront d\u00e9taill\u00e9es dans cet article.<\/strong><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d1eeeb6 elementor-widget elementor-widget-text-editor\" data-id=\"d1eeeb6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Il est l\u2019une des langages les plus utilis\u00e9s, notamment dans le <strong>d\u00e9veloppement logiciel<\/strong> (exemple : interface IPod, navigateurs web) ou la <strong>programmation de jeux vid\u00e9o<\/strong> (ou syst\u00e8mes d\u2019exploitation PS3, PS4), du fait de ses performances et sa polyvalence.<\/p><p>En effet, le C++, s\u2019il est difficile \u00e0 ma\u00eetriser, permet d\u2019<strong>\u00e9crire un code optimis\u00e9 et extr\u00eamement rapide<\/strong> contrairement \u00e0 d\u2019autres langages comme Python dont la prise en main plus ais\u00e9e a un co\u00fbt : efficacit\u00e9 et vitesse moindres.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-478b706 e-flex e-con-boxed e-con\" data-id=\"478b706\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-de43845 elementor-widget elementor-widget-heading\" data-id=\"de43845\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h3 class=\"elementor-heading-title elementor-size-default\">Quels sont les principes de programmation orient\u00e9 objet ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d693746 elementor-widget elementor-widget-text-editor\" data-id=\"d693746\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>La programmation orient\u00e9 objet (<a href=\"https:\/\/datascientest.com\/programmation-orientee-objet-guide-ultime\">POO<\/a>) repose sur un ensemble de principes :<\/p><ul><li><strong>La notion de classe<\/strong> (priv\u00e9e ou publique : structure) : une classe est un <strong>ensemble de donn\u00e9es<\/strong> (entiers, un tableau\u2026) nomm\u00e9es attributs et de m\u00e9thodes agissant sur ces donn\u00e9es telles que l\u2019affichage, l\u2019\u00e9criture, la lecture ou encore des op\u00e9rateurs : l\u2019addition, la multiplication\u2026<\/li><li><strong>Encapsulation des donn\u00e9es<\/strong> : les m\u00e9thodes et donn\u00e9es d\u2019une classe sont s\u00e9par\u00e9es en deux : une <strong>partie priv\u00e9e<\/strong> (r\u00e9serv\u00e9e au d\u00e9veloppeur de la classe) et une <strong>partie publique<\/strong> (accessible \u00e0 l\u2019ensemble des utilisateurs). Par exemple, on pourra lire et modifier les \u00e9l\u00e9ments du tableau mais non modifier sa taille. <strong>Cette division permet d&rsquo;\u00e9viter de nombreux bugs<\/strong> dus aux erreurs du programmeur et facilite son travail : il n\u2019a pas besoin de savoir comment la classe est construite pour pouvoir la manipuler<\/li><li><strong>En C++, les classes disposent de m\u00e9thodes sp\u00e9cifiques<\/strong> : le constructeur qui sert \u00e0 initialiser la classe (idem en Python) et le destructeur qui sert \u00e0 <strong>lib\u00e9rer les ressources m\u00e9moires<\/strong> une fois qu\u2019on n\u2019a plus besoin de l\u2019objet cr\u00e9\u00e9. Cette gestion de la m\u00e9moire permise par le destructeur, non pr\u00e9sent en Python, est source de nombreuses erreurs pour le d\u00e9butant.<\/li><li><strong>H\u00e9ritage<\/strong> : une classe g\u00e9n\u00e9rale se d\u00e9cline en des sous classes particuli\u00e8res, ce qui <strong>permet de factoriser le code<\/strong> et donc \u00e9conomise le nombre de lignes, pareillement \u00e0 Python.<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b7b300c elementor-widget elementor-widget-image\" data-id=\"b7b300c\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"640\" height=\"427\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/c1.jpg\" class=\"attachment-full size-full wp-image-182691\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/c1.jpg 640w, https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/c1-300x200.jpg 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bfedefd elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"bfedefd\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formation-administrateur-systemes-reseaux-et-cloud\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Apprendre \u00e0 coder en langage C++<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-81e4567 e-flex e-con-boxed e-con\" data-id=\"81e4567\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4a18a42 elementor-widget elementor-widget-heading\" data-id=\"4a18a42\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Programmation Proc\u00e9durale<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5a731e6 elementor-widget elementor-widget-text-editor\" data-id=\"5a731e6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Une distinction essentielle en C++ est celle entre les fonctions qui ne modifient pas leurs entr\u00e9es (elles peuvent \u00e9ventuellement cr\u00e9er et renvoyer un nouvel objet) et les fonctions qui modifient les entr\u00e9es mais ne renvoient rien. Ces derni\u00e8res sont nomm\u00e9es <strong>proc\u00e9dures<\/strong>.<span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight ); text-align: var(--text-align);\">Ce paradigme de langage permet <\/span><strong style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; text-align: var(--text-align);\">l\u2019\u00e9tablissement de routines et la factorisation du code<\/strong><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight ); text-align: var(--text-align);\">, ce qui am\u00e9liore sa lisibilit\u00e9 et sa concision.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5dc0348 e-flex e-con-boxed e-con\" data-id=\"5dc0348\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4064d96 elementor-widget elementor-widget-heading\" data-id=\"4064d96\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">D\u00e9finition de la programmation G\u00e9n\u00e9rique<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1b88006 elementor-widget elementor-widget-text-editor\" data-id=\"1b88006\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>La programmation g\u00e9n\u00e9rique repose sur le principe suivant : les m\u00eames op\u00e9rateurs ou fonctions seront utilis\u00e9s pour des types diff\u00e9rents (double, float, char, int\u2026) , gr\u00e2ce \u00e0 la notion de templates. Cette propri\u00e9t\u00e9 permet <strong>la concision du langage<\/strong> et <strong>une maintenance plus ais\u00e9e<\/strong>.<\/p><p>Les templates de classes et de fonctions sont des canevas g\u00e9n\u00e9ral de code rendant possible la cr\u00e9ation de classes ou de fonctions abstraites avec des<strong> types g\u00e9n\u00e9riques (typename)<\/strong> que l\u2019on n\u2019a pas besoin de renseigner.<\/p><p>En quoi-est ce utile ? Cela permet de <strong>s\u2019\u00e9conomiser l\u2019\u00e9criture d\u2019une fonction pour chaque type de donn\u00e9es<\/strong> particuli\u00e8res, le compilateur les cr\u00e9era automatiquement lors de l\u2019appel de la fonction\/classe abstraite.<\/p><p>Par exemple, on peut cr\u00e9er une fonction abstraite maximum : <strong>templatemax()<\/strong>, puis l\u2019appeler pour trouver l&rsquo;\u00e9l\u00e9ment maximal d\u2019un tableau d\u2019entiers, de floats, de vecteurs, etc., des fonctions <strong>max(int)<\/strong>, <strong>max(float)<\/strong> et <strong>max(vecteurs)<\/strong> seront alors produites.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aa859ab elementor-widget elementor-widget-image\" data-id=\"aa859ab\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"640\" height=\"341\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/C2.jpg\" class=\"attachment-full size-full wp-image-182692\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/C2.jpg 640w, https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/C2-300x160.jpg 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1e18fca elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"1e18fca\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formation-administrateur-systemes-reseaux-et-cloud\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Se former au langage C++<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-747658e e-flex e-con-boxed e-con\" data-id=\"747658e\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1627ecf elementor-widget elementor-widget-heading\" data-id=\"1627ecf\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Le C++, un Langage Compil\u00e9 ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e83b669 elementor-widget elementor-widget-text-editor\" data-id=\"e83b669\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Le C++ est un langage compil\u00e9 : le code source, <strong>plus proche du langage machine<\/strong>, est directement transform\u00e9 en fichier ex\u00e9cutable par le compilateur contrairement \u00e0 <a href=\"https:\/\/datascientest.com\/formation-langage-python\">Python<\/a>, qui a besoin qu\u2019un interpr\u00e9teur traduise d\u2019abord le code source. Cette diff\u00e9rence explique en grande partie la vitesse du C++.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0aea5a5 e-flex e-con-boxed e-con\" data-id=\"0aea5a5\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b238a8f elementor-widget elementor-widget-heading\" data-id=\"b238a8f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Quelles sont les limites du langage ? <\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c53dbc5 elementor-widget elementor-widget-text-editor\" data-id=\"c53dbc5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Si le C++ poss\u00e8de donc de nombreuses qualit\u00e9s : rapidit\u00e9, concision, polyvalence, elles ont aussi leur contrecoups. D\u2019une part, il n\u00e9cessite <strong>une gestion de la m\u00e9moire \u00ab\u00a0\u00e0 la main\u00a0\u00bb<\/strong> (via notamment les destructeurs), ce qui provoque de nombreuses erreurs, contrairement au ramasse-miettes de Python qui alloue la m\u00e9moire \u00e0 notre place.<\/p><p>D\u2019autre part, l\u2019apprentissage du C++ est davantage complexe, car il fait appel \u00e0 des <strong>notions d\u2019informatique fondamentale<\/strong>.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-233b63c e-flex e-con-boxed e-con\" data-id=\"233b63c\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4d7c032 elementor-widget elementor-widget-heading\" data-id=\"4d7c032\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Conclusion<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f16d293 elementor-widget elementor-widget-text-editor\" data-id=\"f16d293\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Le C++ est largement utilis\u00e9, m\u00eame en <a href=\"https:\/\/datascientest.com\/integrer-la-data-science-dans-votre-strategie-marketing\">Data Science<\/a> (sans le savoir) car l\u2019environnement de d\u00e9veloppement des mod\u00e8les d\u2019IA sont impl\u00e9ment\u00e9s en C++, Python servant de lien entre le script en entr\u00e9e et cet environnement.<\/p><p>Cet article vous a plu ? Vous souhaitez d\u00e9couvrir nos articles en avant-premi\u00e8re ? <strong>Rejoignez d\u00e8s \u00e0 pr\u00e9sent notre Newsletter<\/strong>.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a2fe399 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"a2fe399\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"\/formations-data\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">D\u00e9couvrir nos formations<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2e5a90e e-flex e-con-boxed e-con\" data-id=\"2e5a90e\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3dcf60b elementor-widget elementor-widget-html\" data-id=\"3dcf60b\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@type\": \"FAQPage\",\r\n  \"mainEntity\": [{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Quels sont les principes de programmation orient\u00e9 objet ?\u200b\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"La notion de classe (priv\u00e9e ou publique : structure) : une classe est un ensemble de donn\u00e9es (entiers, un tableau\u2026) nomm\u00e9es attributs et de m\u00e9thodes agissant sur ces donn\u00e9es telles que l\u2019affichage, l\u2019\u00e9criture, la lecture ou encore des op\u00e9rateurs : l\u2019addition, la multiplication\u2026\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Quelles sont les limites du langage ? \u200b\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Si le C++ poss\u00e8de donc de nombreuses qualit\u00e9s : rapidit\u00e9, concision, polyvalence, elles ont aussi leur contrecoups. D\u2019une part, il n\u00e9cessite une gestion de la m\u00e9moire \\\"\u00e0 la main\\\" (via notamment les destructeurs), ce qui provoque de nombreuses erreurs, contrairement au ramasse-miettes de Python qui alloue la m\u00e9moire \u00e0 notre place. D\u2019autre part, l\u2019apprentissage du C++ est davantage complexe, car il fait appel \u00e0 des notions d\u2019informatique fondamentale.\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Le C++, un Langage Compil\u00e9 ?\u200b\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Le C++ est un langage compil\u00e9 : le code source, plus proche du langage machine, est directement transform\u00e9 en fichier ex\u00e9cutable par le compilateur contrairement \u00e0 Python, qui a besoin qu\u2019un interpr\u00e9teur traduise d\u2019abord le code source. Cette diff\u00e9rence explique en grande partie la vitesse du C++.\"\r\n    }\r\n  }]\r\n}\r\n<\/script>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Le C++ est un langage de programmation d\u00e9velopp\u00e9 en 1983 par Bjarne Stroustrup qui voulait \u00ab\u00a0incr\u00e9menter\u00a0\u00bb le langage C (d\u2019o\u00f9 le nom, c++ signifiant \u00ab\u00a0ajouter 1 \u00e0 C\u00a0\u00bb). Ce langage apporte donc de nouvelles fonctionnalit\u00e9s par rapport au C : programmation orient\u00e9 objet, classes, templates etc., toutes ces notions seront d\u00e9taill\u00e9es dans cet article. Il [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":183516,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2494],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v21.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C++ : \u00c0 quoi sert ce langage informatique ?<\/title>\n<meta name=\"description\" content=\"Le C++ est un langage de programmation d\u00e9velopp\u00e9 en 1983 par Bjarne Stroustrup qui voulait \u201cincr\u00e9menter\u201d le langage C (d\u2019o\u00f9 le nom, c++ signifiant \u201cajouter 1 \u00e0 C\u201d). Ce langage apporte donc de nouvelles fonctionnalit\u00e9s par rapport au C : programmation orient\u00e9 objet, classes, templates etc, toutes ces notions seront d\u00e9taill\u00e9es dans cet article.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/datascientest.com\/langage-c-plus-plus\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C++ : \u00c0 quoi sert ce langage informatique ?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/datascientest.com\/langage-c-plus-plus\" \/>\n<meta property=\"og:site_name\" content=\"Formation Data Science | DataScientest.com\" \/>\n<meta property=\"article:published_time\" content=\"2022-12-01T16:22:12+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-12-13T09:56:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/Illu_BLOG_C.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"562\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Margalith Mamou\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Margalith Mamou\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/datascientest.com\/langage-c-plus-plus\",\"url\":\"https:\/\/datascientest.com\/langage-c-plus-plus\",\"name\":\"C++ : \u00c0 quoi sert ce langage informatique ?\",\"isPartOf\":{\"@id\":\"https:\/\/datascientest.com\/#website\"},\"datePublished\":\"2022-12-01T16:22:12+00:00\",\"dateModified\":\"2024-12-13T09:56:43+00:00\",\"author\":{\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/1c2cce73f7edd34162d45b93c92adb00\"},\"description\":\"Le C++ est un langage de programmation d\u00e9velopp\u00e9 en 1983 par Bjarne Stroustrup qui voulait \u201cincr\u00e9menter\u201d le langage C (d\u2019o\u00f9 le nom, c++ signifiant \u201cajouter 1 \u00e0 C\u201d). Ce langage apporte donc de nouvelles fonctionnalit\u00e9s par rapport au C : programmation orient\u00e9 objet, classes, templates etc, toutes ces notions seront d\u00e9taill\u00e9es dans cet article.\",\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/datascientest.com\/langage-c-plus-plus\"]}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/datascientest.com\/#website\",\"url\":\"https:\/\/datascientest.com\/\",\"name\":\"Formation Data Science | DataScientest.com\",\"description\":\"Leader de la formation en Data Science\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/datascientest.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/1c2cce73f7edd34162d45b93c92adb00\",\"name\":\"Margalith Mamou\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/11\/Margalith.jpg\",\"contentUrl\":\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/11\/Margalith.jpg\",\"caption\":\"Margalith Mamou\"},\"description\":\"Margalith Mamou est Product Manager chez DataScientest, apr\u00e8s avoir occup\u00e9 le poste de Chef de projet Web pendant plus d'un an au sein de la m\u00eame entreprise. Auparavant, elle a \u00e9t\u00e9 D\u00e9veloppeur web pendant pr\u00e8s de 3 ans. Margalith est dipl\u00f4m\u00e9e du Digital College et de l'Institut F2I, avec une sp\u00e9cialisation en gestion du Web et design digital marketing.\",\"sameAs\":[\"https:\/\/www.linkedin.com\/in\/margalith-mamou-a2869919b\/\",\"user\"],\"url\":\"https:\/\/datascientest.com\/author\/margalith\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"C++ : \u00c0 quoi sert ce langage informatique ?","description":"Le C++ est un langage de programmation d\u00e9velopp\u00e9 en 1983 par Bjarne Stroustrup qui voulait \u201cincr\u00e9menter\u201d le langage C (d\u2019o\u00f9 le nom, c++ signifiant \u201cajouter 1 \u00e0 C\u201d). Ce langage apporte donc de nouvelles fonctionnalit\u00e9s par rapport au C : programmation orient\u00e9 objet, classes, templates etc, toutes ces notions seront d\u00e9taill\u00e9es dans cet article.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/datascientest.com\/langage-c-plus-plus","og_locale":"fr_FR","og_type":"article","og_title":"C++ : \u00c0 quoi sert ce langage informatique ?","og_url":"https:\/\/datascientest.com\/langage-c-plus-plus","og_site_name":"Formation Data Science | DataScientest.com","article_published_time":"2022-12-01T16:22:12+00:00","article_modified_time":"2024-12-13T09:56:43+00:00","og_image":[{"width":1024,"height":562,"url":"https:\/\/datascientest.com\/wp-content\/uploads\/2022\/11\/Illu_BLOG_C.png","type":"image\/png"}],"author":"Margalith Mamou","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Margalith Mamou","Dur\u00e9e de lecture estim\u00e9e":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/datascientest.com\/langage-c-plus-plus","url":"https:\/\/datascientest.com\/langage-c-plus-plus","name":"C++ : \u00c0 quoi sert ce langage informatique ?","isPartOf":{"@id":"https:\/\/datascientest.com\/#website"},"datePublished":"2022-12-01T16:22:12+00:00","dateModified":"2024-12-13T09:56:43+00:00","author":{"@id":"https:\/\/datascientest.com\/#\/schema\/person\/1c2cce73f7edd34162d45b93c92adb00"},"description":"Le C++ est un langage de programmation d\u00e9velopp\u00e9 en 1983 par Bjarne Stroustrup qui voulait \u201cincr\u00e9menter\u201d le langage C (d\u2019o\u00f9 le nom, c++ signifiant \u201cajouter 1 \u00e0 C\u201d). Ce langage apporte donc de nouvelles fonctionnalit\u00e9s par rapport au C : programmation orient\u00e9 objet, classes, templates etc, toutes ces notions seront d\u00e9taill\u00e9es dans cet article.","inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/datascientest.com\/langage-c-plus-plus"]}]},{"@type":"WebSite","@id":"https:\/\/datascientest.com\/#website","url":"https:\/\/datascientest.com\/","name":"Formation Data Science | DataScientest.com","description":"Leader de la formation en Data Science","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/datascientest.com\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/datascientest.com\/#\/schema\/person\/1c2cce73f7edd34162d45b93c92adb00","name":"Margalith Mamou","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/datascientest.com\/#\/schema\/person\/image\/","url":"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/11\/Margalith.jpg","contentUrl":"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/11\/Margalith.jpg","caption":"Margalith Mamou"},"description":"Margalith Mamou est Product Manager chez DataScientest, apr\u00e8s avoir occup\u00e9 le poste de Chef de projet Web pendant plus d'un an au sein de la m\u00eame entreprise. Auparavant, elle a \u00e9t\u00e9 D\u00e9veloppeur web pendant pr\u00e8s de 3 ans. Margalith est dipl\u00f4m\u00e9e du Digital College et de l'Institut F2I, avec une sp\u00e9cialisation en gestion du Web et design digital marketing.","sameAs":["https:\/\/www.linkedin.com\/in\/margalith-mamou-a2869919b\/","user"],"url":"https:\/\/datascientest.com\/author\/margalith"}]}},"_links":{"self":[{"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/posts\/182679"}],"collection":[{"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/comments?post=182679"}],"version-history":[{"count":0,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/posts\/182679\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/media\/183516"}],"wp:attachment":[{"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/media?parent=182679"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/categories?post=182679"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/tags?post=182679"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}