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#include <stdio.h>
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#include <stdlib.h>
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#include <strings.h>
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#include <math.h>
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#include "trame.h"
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///Trames de tests ? modifier si n?cessaire.
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char * trames[]= {"$GPGSV,3,2,10,15,03,077,,18,04,041,42,19,85,271,,20,08,214,*7C",
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"$GPGSV,3,3,10,22,39,053,50,28,15,320,*7E",
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"$GPRMC,141914.00,A,4545.6424,N,00306.6036,E,0.4,99.4,010206,,*0C",
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"$GPGLL,4545.6424,N,00306.6036,E,141914.00,A*0E",
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"$GPGGA,141914.00,4545.0000,N,00306.6036,E,1,05,3.4,499.3,M,,M,,*7D",
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"$GPGSA,A,3,,03,,22,14,,01,,18,,,,3.9,3.4,1.9*39",
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"$GPVTG,99.4,T,,M,0.4,N,0.7,K*57",
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"$GPZDA,141914.00,01,02,2006,00,00*69",
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0};
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///D?finition des structures
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typedef struct
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{
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float latitude;
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float longitude;
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} Position;
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typedef struct
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{
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Position rpos;
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float vitmax;
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}Zone;
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int decode_int(char c);
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int trame_cmp(char *a, char*b);
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void traitement (char * trame);
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int decode_nombre( char *ch, int n);
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float conversion_Lat_sexa_dec(char coord[]);
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float conversion_Long_sexa_dec(char coord[]);
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float conversion(char * coord);
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int decode_trame( char *trame, Position *p);
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float calcule_distance(Position p_1, Position p_2);
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float calcule_vitesse(Position p_1, Position p_2);
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int distance_a_la_plus_proche_zone(Position p, Zone r[], int nb_zones, float *d);
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void tests_unitaires(void);
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void test_decode_int(void);
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///Variables globales
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///Variables pour conversion_latitude
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float a =10;
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float b = (float) 1;
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float c = (float) 1/6;
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float d = (float) 1/60;
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float e = (float) 1/600;
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float f = (float) 1/6000;
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float g = (float) 1/60000;
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float h = (float) 1/600000;
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///Variables de test de distance_?_la_plus_proche_zone
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Position pos_Mimizan ={44.208904, -1.297033};
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Position pos_Evian = {46.401488, 6.59049};
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Position pos_Angers = {47.478419, -0.563};
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Position pos_Paris = {48.856614, 2.3522219};
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Position pos_actuelle = {45.7833, 3.0833};
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Zone zones[] = {{{44.208904, -1.297033},50}, {{47.478419, -0.563},70}, {{46.401488, 6.59049},50}, {{48.856614, 2.3522219},90}};
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int nb_Zones = 4;
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// Ne pas modifier cette fonction
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int main(int argc,char ** argv)
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{
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tests_unitaires();
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test_decode_int();
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// Affichage des trames definies dans la table trames.
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printf ("Trames de tests tableau trames:\n");
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int i=0;
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while (trames[i])
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traitement(trames[i++]);
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if (!trame_init())
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exit(-1);
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// Affichage des trames du fichier gps.log
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char *trame;
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printf("Trames de tests du fichier gps.log\n");
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while ((trame = trame_suivante()))
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traitement(trame);
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return 0;
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}
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///Retourne un caract?re chiffr? en entier
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int decode_int(char c)
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{
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unsigned int ValDecimale;
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ValDecimale = c-48;
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if (ValDecimale>9 || ValDecimale<0)
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{
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return -1;
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}
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else
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{
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return ValDecimale;
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}
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}
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///V?rification des trames "GPGGA"
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int trame_cmp(char* a,char* b){
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int i =0;
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///Parcours de la cha?ne b
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while (b[i]!='\0')
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{
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int c = a[i+1];
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int d = b[i];
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if (c!=d)
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{
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return 0;
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}
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i=i+1;
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}
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return 1;
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}
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void traitement(char * trame)
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{
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static int cpt =0;
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Position pos;
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int dist_min;
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if (decode_trame(trame, &pos) ==1)
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{
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printf("%s\nLatitude: %f; Longitude: %f\n\n", trame, pos.latitude, pos.longitude);
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for (int k =0; k<nb_Zones;k++)
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{
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distance_a_la_plus_proche_zone(pos, zones,nb_Zones,&dist_min);
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calcule_vitesse(pos,)
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if (dist_min <100 && )
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}
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}
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cpt++;
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}
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/// Convertit un nombre ?crit en caract?re en d?cimale
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/// A coder sans strlen
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int decode_nombre( char *ch, int n)
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{
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int i =0;
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int Somme = 0;
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///D?finition de la longueur max parcourue
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if (n>strlen(ch))
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{
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n = strlen(ch);
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}
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///Conversion de chaque caract?re puis sommation
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for (i;i<=n-1;i++)
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{
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int Entiere = decode_int(ch[i]);
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Somme =Somme + Entiere*pow(10,n-1-i);
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}
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return(Somme);
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}
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///Conversion Latitude sexag?simale en d?cimale
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float conversion_Lat_sexa_dec(char coord[])
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{
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///Initialisation des variables
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float Coeff_Ent[4] = {a,b,c,d};
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float Coeff_Dec[4] = {e,f,g,h};
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int i =0;
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int k =0;
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float nb_Convert=0;
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int elem;
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///Parcours de la cha?ne de caract?re
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for (i=0; i< 9;i++)
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{
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if (i <= 3)
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{
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elem = decode_int(coord[i]);
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nb_Convert = nb_Convert + (float) elem * Coeff_Ent[i];
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}
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///Saut de virgule
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else if (i>=5)
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{
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elem = decode_int(coord[i]);
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nb_Convert = nb_Convert + (float) elem * Coeff_Dec[k];
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k++;
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}
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}
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return nb_Convert;
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}
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///Conversion Longitude sexag?simale en d?cimale
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float conversion_Long_sexa_dec(char coord[])
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{
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float Coeff_Ent[5] = {0,a,b,c,d};
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float Coeff_Dec[4] = {e,f,g,h};
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int i =0;
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int k =0;
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float nb_Convert=0;
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int elem;
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///Parcours de la cha?ne de caract?re
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for (i=0; i< 10;i++)
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{
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if (i <= 4)
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{
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elem = decode_int(coord[i]);
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nb_Convert = nb_Convert + (float) elem * Coeff_Ent[i];
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}
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///Saut de virgule
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else if (i>=6)
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{
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elem = decode_int(coord[i]);
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nb_Convert = nb_Convert + (float) elem * Coeff_Dec[k];
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k++;
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}
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}
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return nb_Convert;
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}
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///Conversion indiff?rente d'une longitude / latitude
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float conversion(char * coord)
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{
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int i=0;
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Position P;
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///D?tection de l'indice de la virgule
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while (coord[i]!='.')
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{
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i=i+1;
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if (i>5)
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{
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return 0;
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}
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}
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///Appel des fonctions correspondantes
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if (i==4)
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{
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P.latitude = conversion_Lat_sexa_dec(coord);
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return P.latitude;
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}
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else if (i==5)
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{
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P.longitude = conversion_Long_sexa_dec(coord);
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return P.longitude;
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}
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else
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{
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return -1;
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}
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}
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int decode_trame( char *trame, Position *p)
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{
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///D?tection des trames 'GPGGA'
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if (trame_cmp(trame, "GPGGA"))
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{
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///Initialisation des variables
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int nb_Virgule = 0;
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int i =0;
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int k = 0;
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int j =0;
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char Lat[10];
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char Long[12];
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int debut_Lat;
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int debut_Long;
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///Parcours de la chaine trame
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while (trame[i] !='\0')
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{
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/// D?tection des coordonn?es via le nombre de virgules rencontr?es
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///D?tection de la latitude
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if (nb_Virgule ==2 && i!= 26)
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{
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Lat[k] = trame[i];
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k++;
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}
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///D?tection de la longitude
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if (nb_Virgule ==4 && i!= 39)
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{
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Long[j] = trame[i];
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j++;
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}
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///D?tection des virgules
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if (trame[i] == ',')
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{
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nb_Virgule += 1;
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}
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i++;
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}
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///Conversion des coordonn?es
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p->latitude = conversion(Lat);
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p->longitude = conversion(Long);
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return 1;
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}
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else
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{
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return 0;
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}
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}
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float calcule_distance(Position p_1, Position p_2)
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{
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///Initialisation des variables
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float rpt = 0.01745329251;
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float distance;
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float delta =p_1.longitude-p_2.longitude;
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///Calcul distance, formule ? changer ?
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float dist = 6378.1*acos(sin(p_1.latitude*rpt)*sin(p_2.latitude*rpt)+ cos(p_1.latitude*rpt)*cos(p_2.latitude*rpt)*cos(delta*rpt));
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return dist;
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}
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float calcule_vitesse(Position p_1, Position p_2)
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{
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float vitesse;
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float dist = calcule_distance(p_1,p_2);
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vitesse = dist*3600;
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}
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int distance_a_la_plus_proche_zone(Position p, Zone r[], int nb_zones, float *d)
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{
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if (nb_zones ==0)
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{
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return -1;
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}
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else
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{
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///Initialisation des variables
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int i;
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int curseur =0;
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float distance_min = 10000;
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float distance;
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///Calcul du minimum
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for (i=0;i<nb_zones; i++)
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{
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distance =calcule_distance(p, r[i].rpos);
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if (distance <= distance_min)
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{
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distance_min = distance;
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curseur = i;
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}
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}
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*d = distance_min;
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return curseur;
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}
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}
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//Ajouter vos tests unitaires dans cette fonction.
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void tests_unitaires(void){
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//Tests unitaires basiques
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if (5!=5){
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printf ("Erreur Test unitaire basique.\n");
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exit(-1);
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}
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//Tests unitaires de trame_cmp
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if (trame_cmp("$GPGGA suite chaine","GPGGA")!=1){
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printf ("Erreur Test unitaire trame_cmp.\n");
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exit(-1);
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}
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if (trame_cmp("$GPRMC suite chaine","GPGGA")!=0){
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printf ("Erreur Test unitaire trame_cmp.\n");
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exit(-1);
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}
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if (trame_cmp("$GPRMC... ", "GPRMC" )!=1){
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printf ("Erreur Test unitaire trame_cmp.\n");
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exit(-1);
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}
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if (trame_cmp("$APRMC...", "GPGGA")!=0){
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printf ("Erreur Test unitaire trame_cmp.\n");
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exit(-1);
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}
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if (conversion_Lat_sexa_dec("3723.2475")-(float) 37.387458>0.0001){
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printf("Erreur Test unitaire conversion_Latitude_sex_dec 1.\n");
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exit(-1);
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}
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//Tests unitaires de conversion Latitude et Longitude
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if (conversion_Lat_sexa_dec("0045.0000")-(float) 0.75>0.0001){
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printf("Erreur Test unitaire conversion_Latitude_sexa_dec.\n");
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exit(-1);
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}
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if (conversion_Long_sexa_dec("00306.6036")- (float)3.11006>0.0001){
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printf("Erreur Test unitaire conversion_Latitude_sexa_dec.\n");
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exit(-1);
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}
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if (conversion_Long_sexa_dec("00008.0015")-(float)0.133358>0.0001){
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printf("Erreur Test unitaire conversion_Latitude_sexa_dec.\n");
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exit(-1);
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}
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//Tests unitaires de conversion
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if (conversion("3723.2475")-(float)37.387458>0.0001){
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printf("Erreur Test unitaire conversion.\n");
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exit(-1);
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}
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if (conversion("0045.0000")-(float)0.75>0.0001){
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printf("Erreur Test unitaire conversion.\n");
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exit(-1);
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}
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if (conversion("00306.6036")-(float)3.11006>0.0001){
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printf("Erreur Test unitaire conversion.\n");
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exit(-1);
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}
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if (conversion("00008.0015")-(float)0.133358>0.0001){
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printf("Erreur Test unitaire conversion.\n");
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exit(-1);
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}
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if (conversion("0.0")!=-1){
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printf("Erreur test unitaire conversion.\n");
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exit(-1);
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}
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//Test unitaires de decode_trame
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Position test;
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if (decode_trame("$GPGSV,3,3,10,22,39,053,50,28,15,320,*7E", &test) != 0){
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printf("Erreur test unitaire decode_trame.\n");
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exit(-1);
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}
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if (decode_trame("$GPGGA,141914.00,4545.0000,N,00306.6036,E,1,05,3.4,499.3,M,,M,,*7D", &test)!=1){
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printf("Erreur test unitaire decode_trame.\n");
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exit(-1);
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}
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if (decode_trame("$GPGGA,141925.00,4545.2410,N,00306.6046,E,1,05,3.4,501.4,M,,M,,*7D", &test)!=1){
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printf("Erreur test unitaire decode_trame.\n");
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exit(-1);
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}
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if (decode_trame("$GPRMC,141920.00,A,4545.6419,N,00306.6039,E,0.2,133.1,010206,,*38", &test) != 0){
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printf("Erreur test unitaire decode_trame.\n");
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exit(-1);
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}
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//Tests unitaires de distance a la plus proche zone
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float dist_min;
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if (distance_a_la_plus_proche_zone(pos_actuelle, zones, nb_Zones, &dist_min) != 2){
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printf("Erreur test unitaire distance_a_la_plus_proche_zone");
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exit(-1);
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}
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}
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void test_decode_int(void)
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{
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if (decode_int('0')!=0){
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printf("Erreur test unitaire decode_int.\n");
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}
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if (decode_int('1')!=1){
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printf("Erreur test unitaire decode_int.\n");
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exit(-1);
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}
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if (decode_int('A')!=-1){
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printf("Erreur test unitaire decode_int.\n");
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exit(-1);
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}
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}
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