96 lines
1.9 KiB
C
96 lines
1.9 KiB
C
#include<stdio.h>
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#include<stdlib.h>
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typedef struct maillon{
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int valeur;
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struct maillon* suivant;
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} maillon;
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typedef struct file{
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maillon* debut;
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maillon* fin;
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}file;
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int empty(file p_file){
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if (p_file.debut){
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return 1;
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}
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return 0;
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}
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void creerFile(file* p_file){
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p_file->debut=NULL;
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p_file->fin=NULL;
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}
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void enqueue(file* p_file, int new_valeur){
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maillon* new_maillon = (maillon*) malloc(sizeof(maillon));
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new_maillon->valeur = new_valeur;
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new_maillon->suivant = NULL;
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if (p_file->debut==NULL){
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p_file->debut = new_maillon;
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}
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else{
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(p_file->fin)->suivant = new_maillon;
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}
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p_file->fin = new_maillon;
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}
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int dequeue(file* p_file){
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maillon* p_suivant=(p_file->debut)->suivant;
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int valeur = (p_file->debut)->valeur;
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free(p_file->debut);
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p_file->debut = p_suivant;
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return valeur;
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}
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int first(file p_file){
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return (p_file.debut)->valeur;
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}
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void clear(file* p_file){
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maillon* p_suivant = (*p_file).debut;
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while(p_suivant!=NULL){
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p_suivant = ((*p_file).debut)->suivant;
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free((*p_file).debut);
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p_file->debut = p_suivant;
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}
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p_file->fin = NULL;
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}
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/*
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int main(void){
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int choix=99;
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int caractere;
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file p_file;
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creerFile(&p_file);
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printf("\n----------instruction----------\n1<char>- enqueue\n2- dequeue\n3- old\n4- clear\n5- quit\n----------------------------------\n");
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while(choix!=5){
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printf("choix : ");
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scanf(" %d",&choix);
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if (choix==1){
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printf("nombre : ");
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scanf(" %d",&caractere);
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enqueue(&p_file,caractere);
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}
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if (choix==2){
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if (empty(p_file)){
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printf("resultat : %d\n",dequeue(&p_file));
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}
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}
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if (choix==3){
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if (empty(p_file)){
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printf("resultat : %d\n",first(p_file));
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}
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}
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if (choix==4){
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clear(&p_file);
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printf("La liste à bien été vidé\n");
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}
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}
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clear(&p_file);
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printf("O revoir BG\n");
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return 0;
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}
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*/
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