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Simple database: Difference between revisions
m
→{{header|C}}
(→{{header|D}}: make private) |
m (→{{header|C}}) |
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Line 45:
#define FREE(a) if(a) {free(a);a=NULL;}
#define sort_by(foo) \
static int by_##foo (
return strcmp ((*(const pdb_t*)p1)->foo, (*(const pdb_t*)p2)->foo); }
typedef struct db {
char title[26];
Line 56:
}
db_t,*pdb_t;
typedef int (sort)(
enum {CREATE,PRINT,TITLE,DATE,AUTH,READLINE,READ,SORT,DESTROY};
static pdb_t dao (int cmd, FILE *f, pdb_t db, sort sortby);
Line 68 ⟶ 67:
/* main */
int main (int argc, char **argv) {
char buf[100]
const char *commands[]={"-c", "-p", "-t", "-d", "-a", NULL};
db_t db;
db.next=NULL;
Line 189:
in_db=in_db->next;
}
qsort (pdb,i,sizeof in_db,
pdb[i-1]->next=NULL;
for (;i;i--) {
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