dbm_clearerr - Linux
Overview
dbm_clearerr clears any error state that may have been set for a Berkeley DBM database.
Syntax
dbm_clearerr(DBM *db)
- db: The database handle.
Options/Flags
None.
Examples
#include <stdio.h>
#include <stdlib.h>
#include <dbm.h>
int main() {
DBM *db;
int e;
db = dbm_open("mydatabase", O_RDWR | O_CREAT, 0644);
if (!db) {
perror("dbm_open");
exit(EXIT_FAILURE);
}
e = dbm_store(db, "key", "value", DBM_REPLACE);
if (e == -1) {
dbm_clearerr(db);
... // Handle the error
}
dbm_close(db);
return 0;
}
Common Issues
It is important to clear any error state before performing additional operations on the database. Otherwise, subsequent operations may continue to return errors.
Integration
dbm_clearerr can be used with other dbm functions to manage and manipulate Berkeley DBM databases. For example, it can be used in conjunction with:
- dbm_open: To open a database.
- dbm_store: To store a key-value pair in the database.
- dbm_fetch: To retrieve a value associated with a key from the database.
- dbm_delete: To delete a key-value pair from the database.
Related Commands
- dbm_close: Closes a database.
- dbm_error: Retrieves the error message for the most recent error that occurred.
- dbm_open: Opens a database.