print.c

A simple bibliotech archive coded in C. A real exercise with fopen write and the other base functio

#include "head.h"

int  load(char *nomefile,struct libro v[])
{
 FILE *f;
 int k=0,i=0;
 if((f=fopen(nomefile,"r"))==NULL){ fprintf(stdout,"[*] I can't load the database file [*]\n");
                                    return -1;
                                  }
 while (fscanf(f,"%s%s%s%d%f\n",v[k].titolo,v[k].autori,&v[k].editore,&v[k].num_pagine,&v[k].costo) !=EOF) k++;
 fflush(f);
 fclose(f);
 return 0;
}

int main(int argc,char *argv[])
{ 
char *risp;
int i,min,max;
if (load(argv[1],books)==-1) return -1;
fprintf (stdout,"[*] Load the database %s file [*]\n",argv[1]);
for (i=atoi(argv[2]);i<atoi(argv[3]);i++){
 if (books[i].titolo    !='\0' && 
     books[i].autori    !='\0' &&
     books[i].editore    !='\0' && 
     books[i].num_pagine !='\0' &&
     books[i].costo!= '\0' ) printf (" %d :%s %s %s %d %f\n",i, books[i].titolo,books[i].autori,books[i].editore,books[i].num_pagine,books[i].costo);

else  fprintf (stdout,"%d :   -=Free=-   \n",i);
}
return 0;
}