56 lines
1 KiB
Markdown
56 lines
1 KiB
Markdown
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# Les files
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Le principe est celui des files d'attentes : premier arrivé, premier sorti.
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## Primitives
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### Déclaration
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```python
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f = creer_pile()
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bool : file_vide(f)
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bool : file_pleine(f)
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ajout_fin_file()
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elt = debut_file()
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retirer_debut_file()
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```
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```
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Maillon struct (
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valeur : INT
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suivant : SAME)
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File struct (
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debut : Maillon
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Fin : Maillon)
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```
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### Définition (listes)
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```python
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def creer_file():
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file = File(debut=None, fin=None)
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return file
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def file_vide(file):
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return file.debut is None
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def file_pleine(file):
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return False
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def ajout_fin_file(file, elt):
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mail = Maillon(valeur=elt, suivant=None)
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if file.fin != None:
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file.fin.suivant = mail
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else:
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file.debut = mail
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file.fin = mail
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def debut_file(file):
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return file.debut.valeur
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def retirer_debut_file(file):
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mail = file.debut
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file.debut = file.debut.suivant
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if not file.debut:
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file.fin = None
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free(mail)
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```
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### Définition (tableaux)
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`TODO : Implémenter ça pour dans deux semaines`
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