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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 latitude;
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float longitude;
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}Position;
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Position p1,p2,p3,p4;
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int decode_nombre(char *ch, int n);
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float latitude_nbf(char* c)
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{
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int degre;
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int minute1;
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int minute2;
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float minute11;
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float minute22;
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float degre11;
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float resultat;
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degre=decode_nombre(&c[0],2);
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minute1=decode_nombre(&c[0+2],2);
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minute2=decode_nombre(&c[0+5],4);
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degre11=(float)degre;
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minute11=(float)minute1;
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minute22=(float)minute2;
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resultat=degre11+(minute11/60)+(minute22/600000);
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return resultat;
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}
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float longitude_nbf(char* c)
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{
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int degre;
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int minute1;
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int minute2;
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float minute11;
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float minute22;
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float degre11;
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float resultat;
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degre=decode_nombre(&c[0],3);
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minute1=decode_nombre(&c[0+3],2);
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minute2=decode_nombre(&c[0+3],4);
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degre11=(float)degre;
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minute11=(float)minute1;
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minute22=(float)minute2;
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resultat=degre11+(minute11/60)+(minute22/600000);
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return resultat;
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}
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float lat_lon(char* c)
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{
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float resultat;
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if(c[4]==46)
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{
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resultat=latitude_nbf(c);
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}
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else{
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resultat=longitude_nbf(c);
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}
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return resultat;
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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;
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int ok;
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ok=1;
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for(i=0;i<5;i=i+1)
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{
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if(trame[i+1]!=type[i])
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{
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ok=0;
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}
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}
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return ok;
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}
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int decode_int(char c)
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{
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int decode;
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if(c<='9' && c>='0')
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{
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decode=c-48;
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}
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else
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{
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decode=-1;
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}
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return decode;
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}
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int decode_nombre(char *ch, int n)
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{
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int i;
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int resultat=0;
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for(i=0;i<n;i=i+1)
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{
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resultat=(resultat*10)+decode_int(ch[i]);
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}
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return resultat;
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}
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int decode_trame(char* trame,Position* p)
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{
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int ok;
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ok=0;
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if(trame[16]!=trame[17] && trame[28]!=trame[29])
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{
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if(trame_cmp(trame,"GPGGA")==1)
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{
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p->latitude=latitude_nbf(&trame[17]);
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p->longitude=longitude_nbf(&trame[29]);
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ok=1;
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}
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}
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return ok;
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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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printf ("> %s\n",trame);
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float lat,lat2,lat3,lat4;
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float longi,longi2,longi3,longi4;
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int i;
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i=0;
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if (i==0)
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{
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decode_trame("$GPGGA,141914.00,4545.0000,N,00306.6036,E,1,05,3.4,499.3,M,,M,,*7D", &p1);
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decode_trame("$GPGGA,141914.00,5078.0000,N,00306.6036,E,1,05,3.4,499.3,M,,M,,*7D", &p2);
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decode_trame("$GPGGA,141915.00,4545.0242,N,00306.6039,E,1,05,3.4,499.5,M,,M,,*72", &p3);
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decode_trame("$GPGGA,141915.00,4554.0242,N,00306.8039,E,1,05,3.4,499.5,M,,M,,*72", &p4);
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lat4=p4.latitude;
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longi4=p4.longitude;
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lat3=p3.latitude;
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longi3=p3.longitude;
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lat2=p2.latitude;
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longi2=p2.longitude;
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lat=p1.latitude;
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longi=p1.longitude;
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printf("%f\n%f\n%f\n%f\n%f\n%f\n%f\n%f", lat,lat2,lat3,lat4,longi,longi2,longi3,longi4);
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i=1;
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exit(-1);
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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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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("$GPGGA suite chaine","GPGGA")!=1){
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printf ("Erreur Test unitaire trame_cmp.\n");
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exit(-1);
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}
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if (trame_cmp("$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(decode_int('5')!=5)
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{
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printf("Erreur du test decode int");
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exit(-1);
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}
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if(decode_nombre("9555",2)!=95)
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{
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printf("Erreur du test decode nombre");
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exit(-1);
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}
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if(latitude_nbf("3723.2475")==37.387458) /* changer test*/
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{
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printf("Erreur du test pour la latitude");
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exit(-1);
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}
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if(longitude_nbf("00306.6036")==3.11006)
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{
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printf("Erreur du test pour la latitude");
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exit(-1);
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}
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if (lat_lon("00306.6036")==3.11006)
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{
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printf("Erreur de test pour la combinaison des deux fonctions");
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exit(-1);
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}
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if (lat_lon("3723.2475")==37.387458)
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{
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printf("Erreur de test pour la combinaison des deux fonctions");
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exit(-1);
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}
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if(decode_trame("$GPGGA,141914.00,4545.0000,N,00306.6036,E,1,05,3.4,499.3,M,,M,,*7D", &p1)!=1)
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{
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printf("Erreur de test pour decode trame");
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exit(-1);
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}
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if(decode_trame("$GPGGA,141914.00,5078.0000,N,00306.6036,E,1,05,3.4,499.3,M,,M,,*7D", &p2)!=1)
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{
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printf("Erreur de test pour decode trame");
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exit(-1);
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}
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if(decode_trame("$GPGGA,141915.00,4545.0242,N,00306.6039,E,1,05,3.4,499.5,M,,M,,*72", &p3)!=1)
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{
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printf("Erreur de test pour decode trame");
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exit(-1);
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}
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if(decode_trame("$GPGGA,141915.00,4554.0242,N,00306.8039,E,1,05,3.4,499.5,M,,M,,*72", &p4)!=1)
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{
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printf("Erreur de test pour decode trame");
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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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