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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 "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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typedef struct{
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float Lat; /* latitude */
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float Lon; /* lontitude */
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} Position;
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float decode_trame(char *trame);
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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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Position pos;
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void test_decode_nombre()
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{
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char t[5];
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t[0] = '1';
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t[1] = '2';
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t[2] = '3';
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t[3] = '4';
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if (decode_nombre(t,1) != 1)
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{
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printf ("Erreur test unitaire decode_nombre_1\n");
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exit(-1);
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}
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if (decode_nombre(t,4) != 1234)
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{
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printf ("Erreur test unitaire decode_nombre_2\n");
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exit(-1);
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}
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}
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if (trame_cmp(trame, "GPGGA")==1)
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{
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printf("> %s\n", trame);
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decode_trame("$GPGGA,141914.00,4545.0000,N,00306.6036,E,1,05,3.4,499.3,M,,M,,*7D");
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cpt++;
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}
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}
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int trame_cmp(char *trame, char *type)
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{
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int i,b=1;
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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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b=0;
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}
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}
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return b;
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}
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int decode_int(char *c)
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{
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int nb;
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if (c>=48 && c<=57)
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{
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nb=c-48;
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}
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else
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{
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nb=-1;
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}
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return nb;
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}
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int decode_nombre(char *ch, int n) /* fonction qui permet de passer d'une chaine de caractere a un entier */
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{
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int res=0; /* initialisation du resultat=0 */
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int i;
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for (i=0; i<n; i++)
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{
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res=10*res + decode_int(ch[i]); /* permet de reconstituer le nombre terme a terme par puissance de 10 */
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}
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return res;
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}
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float decode_latitude(char *trame) /* fonction convertissant la cha?ne de caract?re contenant la latitude en nombre flottant et son test unitaire */
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{
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int i;
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char minute[5]; /*caractere de 4 */
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float degre_Lat, min_Lat, res_decodeLat;
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for (i=0; i<4; i++)
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{
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minute[i] = trame[i+22];
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}
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degre_Lat = 10*decode_int(trame[17])+ decode_int(trame[18]);
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min_Lat = 10*decode_int(trame[19]) + decode_int(trame[20]) + 0.0001*decode_nombre(minute,4);
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res_decodeLat = degre_Lat + min_Lat/60;
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return res_decodeLat;
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}
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float decode_longitude(char *trame) /* fonction convertissant la cha?ne de caract?re contenant la longitude en nombre flottant et son test unitaire */
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{
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int i;
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char minute[5];
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float degre_Lon, min_Lon, res_decodeLon;
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for (i=0 ; i<4 ; i++)
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{
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minute[i] = trame[i+35];
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}
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degre_Lon = 100*decode_int(trame[29]) + 10*decode_int(trame[30]) + decode_int(trame[31]);
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min_Lon = 10*decode_int(trame[32]) + decode_int(trame[33]) + 0.0001*decode_nombre(minute,4);
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res_decodeLon = degre_Lon + min_Lon/60;
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return res_decodeLon;
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}
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Position decode_position(char *trame) /* fonction qui d?code indiff?remment une latitude ou une longitude */
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{
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Position pos;
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pos.Lat = decode_latitude(trame);
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pos.Lon = decode_longitude(trame);
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return pos;
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}
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float decode_trame(char *trame)/*fonction qui affiche la latitude et la longitude*/
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{
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Position pos;
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decode_position(*trame);
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printf("%f", pos.Lat);
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printf("%f", pos.Lon);
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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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Position pos;
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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("$GPGGA suite chaine","GPGGA")==0)
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{
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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("$GPRMC suite chaine","GPGGA")==1){
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printf ("Erreur Test unitaire trame_cmp.\n");
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exit(-1);
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}
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if (trame_cmp("$GPRMC... ", "GPRMC" )==0){
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printf ("Erreur Test unitaire trame_cmp.\n"); if (decode_position("$GPGGA,141914.00,4545.0000,N,00306.6036,E,1,05,3.4,499.3,M,,M,,*7D").Lat != 45.75)
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{
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printf ("Erreur test unitaire decode_longitude-2\n");
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exit(-1);
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}
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exit(-1);
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}
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if (trame_cmp("$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 (decode_int("7")!=-1)
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{
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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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test_decode_nombre();
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if (decode_latitude("$GPGGA,141914.00,4545.0000,N,00306.6036,E,1,05,3.4,499.3,M,,M,,*7D") != 45.75)
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{
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printf ("Erreur test unitaire decode_latitude\n");
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exit(-1);
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}
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if (decode_latitude("$GPGGA,141914.00,4545.0000,N,00306.6036,E,1,05,3.4,499.3,M,,M,,*7D") != 45.75)
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{
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printf ("Erreur test unitaire decode_latitude\n");
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exit(-1);
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}
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if (decode_position("$GPGGA,141914.00,4545.0000,N,00306.6036,E,1,05,3.4,499.3,M,,M,,*7D").Lon != 3.1100599765777588)
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{
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printf ("Erreur test unitaire decode_longitude-1\n");
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exit(-1);
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}
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if (decode_position("$GPGGA,141914.00,4545.0000,N,00306.6036,E,1,05,3.4,499.3,M,,M,,*7D").Lat != 45.75)
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{
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printf ("Erreur test unitaire decode_longitude-2\n");
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exit(-1);
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}*/
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}
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void test_decode_nombre()
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{
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char t[5];
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t[0] = '1';
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t[1] = '2';
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t[2] = '3';
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t[3] = '4';
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if (decode_nombre(t,1) != 1)
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{
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printf ("Erreur test unitaire decode_nombre_1\n");
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exit(-1);
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}
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if (decode_nombre(t,4) != 1234)
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{
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printf ("Erreur test unitaire decode_nombre_2\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 ("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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