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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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#define nbtrames 8
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struct Position{
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float lattitude;
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float longitude;
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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 decode_int(char c)
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{
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int resu;
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if(c<'0' && c>'9')
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resu=-1;
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else
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resu=c-48;
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return resu;
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}
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int decode_nombre(char * ch , int n)
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{
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int s;
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for(int i=0;i<n;i++)
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{
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s=s+ decode_int(ch[n-1+i])*pow(10,n);
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}
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return s;
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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=4,resu =1;
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while(resu==1 && i>=0){
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if(trame[i+1] != type[i])
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resu =0;
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i--;
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}
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return resu;
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}
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float decode_lattitude(char * ch)
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{
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int pos=0,pos1,i=0,m=0;
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while(m==0 && pos<strlen(*ch))
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{
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if(ch[pos]=',')
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{
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pos1++;
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if(pos1==3)
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m=1;
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}
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pos++;
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}
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float s,s1=0,s2=0,s3=0;
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for(i=pos;i<pos+2;i++)
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s1=s1+ decode_int(ch[i])*pow(10,pos+1-i);
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for(i=pos+2;i<pos+4;i++)
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s2=s2+ decode_int(ch[i])*pow(10,pos+3-i)/60;
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for(i=pos+5;i<pos+7;i++)
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s3=s3+ decode_int(ch[i])*pow(10,pos+6-i)/3600;
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return s=s1+s2+s3 ;
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}
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float decode_longitude(char * ch)
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{
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int pos=0,pos1=0,i=0,m=0;
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while(m==0 && pos<strlen(*ch))
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{
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if(ch[pos]=',')
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{
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pos1++;
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if(pos1==5)
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m=1;
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}
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pos++;
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}
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float s,s1=0,s2=0,s3=0;
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for(i=pos;i<pos+3;i++)
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s1=s1+ decode_int(ch[i])*pow(10,pos+1-i);
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for(i=pos+2;i<pos+4;i++)
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s2=s2+ decode_int(ch[i])*pow(10,pos+3-i)/60;
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for(i=pos+5;i<pos+7;i++)
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s3=s3+ decode_int(ch[i])*pow(10,pos+6-i)/3600;
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return s=s1+s2+s3 ;
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}
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float decode(char * ch , int pos)
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{
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int i;
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float s,s1=0,s2=0,s3=0;
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for(i=pos;i<pos+3;i++)
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s1=s1+ decode_int(ch[i])*pow(10,pos+1-i);
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for(i=pos+2;i<pos+4;i++)
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s2=s2+ decode_int(ch[i])*pow(10,pos+3-i)/60;
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for(i=pos+5;i<pos+7;i++)
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s3=s3+ decode_int(ch[i])*pow(10,pos+6-i)/3600;
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return s=s1+s2+s3 ;
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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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for(int i=0; i< nbtrames ; i++)
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if(trame_cmp(&(trame[i]),"GPGGA")==1)
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printf("%s",&(trame[i]));
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}
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int decode_trame(char *trame, struct Position *p)
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{
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int a=0,s=1;
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float r=0,q=0;
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a= trame_cmp((trame),"GPGGA");
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r=decode_longitude(trame);
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q=decode_lattitude(trame);
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if(s!=1 || r!=*(p).lattitude || q!=*(p).longitude);
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}
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void test_decode_int(void)
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{
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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 (decode_int('6')==-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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}
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void test_decode_nombre(char * ch, int n)
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{
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int s=decode_nombre(ch, n);
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for(int i=0;i<n;i++)
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{
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s=s- decode_int(ch[n-1+i])*pow(10,n);
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}
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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 (s!=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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}
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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 (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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}
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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 ("\nTrames 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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