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.