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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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//Enregistrement latitude et longitude
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typedef struct {
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float longitude;
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float latitude;
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} Position ;
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typedef struct {
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Position rpos;
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float vitmax;
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} Zone ;
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Zone zones[] = {
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{{44.7887762, -3.012}, 50}, /* Descripteur de la premi?re zone */
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{{44.7891220, -3,013}, 70}
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};
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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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int trame_cmp(char* trame,char* type)//Verifie que la trame est un GPGGA
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{
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int i = 0, a = 0;
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for (i=0;i<5;i++)
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{
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if (trame[i+1] == type[i])
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{
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}
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else if ((trame[i+1] == '\0') || (type[i] == '\0') || (trame[i+1] == ','))
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{
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a = trame[i] - type[i];
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}
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else
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{
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a = trame[i+1] - type[i];
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}
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}
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if (a==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 0;
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}
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}
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int decode_int(char ch)//Conversion d'un caractere en entier
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{
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int dec;
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if(ch<='9' && ch>='0')
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{
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dec = ch-'0';
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return dec;
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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_nombre(char *ch, int n)//Decode les premiers chiffres de la latitude ou longitude
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{
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int i=0, res=0;
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for (i=0; i<n; i++)
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{
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res = res*10 + decode_int(ch[i]);
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}
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return res;
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}
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float conversion_latitude (char *lat_c)//Conversion de la latitude - Passage sous forme de flottant
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{
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int i=0, k=2;
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float lat_f=0;
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for (i=0;i< 9;i++)
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{
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if (lat_c[i]<='9' && lat_c[i]>='0')
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{
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if (i<=1)
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{
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k--;
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lat_f = lat_f + decode_int(lat_c[i])*powf(10,k);
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}
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else
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{
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lat_f = lat_f + decode_int(lat_c[i])/(6*powf(10,k));
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k++;
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}
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}
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else
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{
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continue;
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}
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}
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return lat_f;
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}
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float conversion_longitude (char *long_c)//Conversion de la longitude - Passage sous forme de flottant
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{
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int i, k=3;
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float long_f=0;
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for (i=0;i<10;i++)
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{
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if (long_c[i]<='9' && long_c[i]>='0')
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{
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if (i<=2)
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{
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k--;
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long_f = long_f + decode_int(long_c[i])*powf(10,k);
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}
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else
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{
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long_f = long_f + decode_int(long_c[i])/(6*powf(10,k));
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k++;
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}
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}
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else
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{
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continue;
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}
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}
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return long_f;
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}
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float conversion_lat_long (char *c)//Appelle la bonne fonction de conversion
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{
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int i=0;
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while (c[i] != '.')
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{
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i++;
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}
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if (i<=4)
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{
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return conversion_latitude (c);
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}
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if (i>=5)
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{
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return conversion_longitude (c);
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}
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}
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int decode_trame(char *trame, Position p)//Permet d'identifier et enregistrer la latitude et longitude
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{
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int i=0, j=0, k=0, a=0;
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char lat_c[10]={NULL}, long_c[11]={NULL};
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if(trame_cmp(trame,"GPGGA"))
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{
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printf("Trame commencant par GPGGA :\n");
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printf("%s\n",trame);
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for (i=0; i<66; i++)
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{
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if (a == 2 && trame[i]!=',')
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{
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lat_c[j] = trame[i];
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j++;
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}
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if (a == 4 && trame[i]!=',')
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{
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long_c[k] = trame[i];
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k++;
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}
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if (trame[i] == ',')
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{
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a++;
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}
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}
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printf("lat_c : %s,long_c %s\n",lat_c,long_c);
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p.latitude = conversion_lat_long(lat_c);
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p.longitude = conversion_lat_long(long_c);
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}
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printf("lat : %f,long : %f\n\n",p.latitude,p.longitude);
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return trame_cmp(trame,"GPGGA");
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}
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float calcule_distance(Position p_1, Position p_2)//Calcul de distance entre 2 points
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{
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float d=0, a1, a2, b1, b2;
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a1 = p_1.latitude;
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a2 = p_2.latitude;
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b1 = p_1.longitude;
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b2 = p_2.longitude;
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d = 6371 * acosf( sin(a1)*sin(a2) + cos(a1)*cos(a2)*cos(b2-b1) ); //distance en km
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return d;
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}
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float calcule_vitesse(Position p_1, Position p_2)//Calcul de la vitesse entre 2 points
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{
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float v = 0;
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v = 3.6 * calcule_distance(p_1,p_2);
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return v;
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}
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//Fonction ? modifier !!!!!
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void traitement(char * trame)
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{
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static int cpt=0 ;
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printf ("> %s\n",trame);
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cpt++ ;
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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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{
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Position p;
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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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if (trame_cmp("$GPGSV,3,2,10,15,03,077,,18,04,041,42,19,85,271,,20,08,214,*7C","GPGGA")!=0){
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printf ("Erreur Test unitaire trame_cmp.\n");
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exit(-1);
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}
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if (trame_cmp("$GPGSV,3,3,10,22,39,053,50,28,15,320,*7E","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("$GPRMC,141914.00,A,4545.6424,N,00306.6036,E,0.4,99.4,010206,,*0C", "GPGGA" )!=0){
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printf ("Erreur Test unitaire trame_cmp.\n");
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exit(-1);
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}
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if (trame_cmp("$GPGLL,4545.6424,N,00306.6036,E,141914.00,A*0E", "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("$GPGGA,141914.00,4545.0000,N,00306.6036,E,1,05,3.4,499.3,M,,M,,*7D", "GPGGA")!=1){
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printf ("Erreur Test unitaire trame_cmp.\n");
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exit(-1);
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}
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if (trame_cmp("$GPGSA,A,3,,03,,22,14,,01,,18,,,,3.9,3.4,1.9*39", "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("$GPVTG,99.4,T,,M,0.4,N,0.7,K*57", "GPGGA")!=0){
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printf ("Erreur Test unitaire trame_cmp.\n");
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exit(-1);
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}
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if (trame_cmp("$GPZDA,141914.00,01,02,2006,00,00*69", "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 (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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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_nombre("1345",2)!=13){
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printf ("Erreur Test unitaire decode_nombre.\n");
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exit(-1);
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}
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if ((conversion_lat_long("7501.2000") < (0.93*75.02)) || (conversion_lat_long("7501.2000") > (1.03*75.02))){
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printf ("Erreur Test unitaire conversion lat_long.\n");
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exit(-1);
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}
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if ((conversion_lat_long("10345.1234") < (0.93*103.752056)) || (conversion_lat_long("7501.2000") > (1.03*103.752056))){
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printf ("Erreur Test unitaire conversion longitude.\n");
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exit(-1);
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}
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if (decode_trame("$GPVTG,99.4,T,,M,0.4,N,0.7,K*57", p)!=0){
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printf ("Erreur Test unitaire decode_trame.\n");
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exit(-1);
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}
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if (decode_trame("$GPGGA,141914.00,4545.0000,N,00306.6036,E,1,05,3.4,499.3,M,,M,,*7D", p)!=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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}
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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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// Affichage des trames definies dans la table trames.
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printf ("\nTrames 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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