Method: DBM#key?

Defined in:
dbm.c

#include?(key) ⇒ Boolean #has_key?(key) ⇒ Boolean #member?(key) ⇒ Boolean #key?(key) ⇒ Boolean

Returns true if the database contains the specified key, false otherwise.

Overloads:

  • #include?(key) ⇒ Boolean

    Returns:

    • (Boolean)
  • #has_key?(key) ⇒ Boolean

    Returns:

    • (Boolean)
  • #member?(key) ⇒ Boolean

    Returns:

    • (Boolean)
  • #key?(key) ⇒ Boolean

    Returns:

    • (Boolean) 


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# File 'dbm.c', line 862

static VALUE
fdbm_has_key(VALUE obj, VALUE keystr)
{
    datum key, val;
    struct dbmdata *dbmp;
    DBM *dbm;
    long len;

    ExportStringValue(keystr);
    len = RSTRING_LEN(keystr);
    if (TOO_LONG(len)) return Qfalse;
    key.dptr = RSTRING_PTR(keystr);
    key.dsize = (DSIZE_TYPE)len;

    GetDBM2(obj, dbmp, dbm);
    val = dbm_fetch(dbm, key);
    if (val.dptr) return Qtrue;
    return Qfalse;
}