Des exemples de code pour programmer en Rust
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  1. /* Copyright (C) 2011-2023 Patrick H. E. Foubet - E2L Ivry
  2. Ecole du Logiciel Libre : https://e2li.org/
  3. This program is free software: you can redistribute it and/or modify
  4. it under the terms of the GNU General Public License as published by
  5. the Free Software Foundation, either version 3 of the License, or any
  6. later version.
  7. This program is distributed in the hope that it will be useful,
  8. but WITHOUT ANY WARRANTY; without even the implied warranty of
  9. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  10. GNU General Public License for more details.
  11. You should have received a copy of the GNU General Public License
  12. along with this program. If not, see <http://www.gnu.org/licenses/>
  13. *******************************************************************/
  14. struct Cercle{ // créez une structure de type
  15. rayon : f32, // membre de la structure
  16. }
  17. trait Calculate { // définir un trait
  18. fn aire(&self) -> f32 ; // Définit une méthode de trait.
  19. }
  20. impl Calculate for Cercle { // implémente la fonction
  21. fn aire(&self) -> f32 { // implémente la méthode du trait
  22. std::f32::consts::PI * self . rayon * self.rayon
  23. }
  24. }
  25. fn main(){
  26. let obj = Cercle { rayon : 2000.00} ; // crée un objet structuré
  27. println ! ("L'aire du cercle est : {}", obj.aire()) ;
  28. // dans le println on appelle la méthode
  29. }