save



Summary

#include <dataman/dataman.h>

save(idx_name);

char *idx_name;

Description

This routine saves the current state of the named index. The argument is a string containing the name of the index whose state you wish to save. Only one state may be saved per index at one time. Successive calls to save without a call to restore will loose any previously saved state.

Example

    #include <dataman/dataman.h>

    main(argc,argv)
    {

        int tot;                     /* total charges */
          ...
        get(num_ix,num_key);         /* get key */
        forward(num_ix) else         /* get to total record */
            error();                 /* problems */
        tot = atoi(mfld[1]);         /* save the total */
        save(num_ix);                /* save the state */
        while (1) {
            forward(num_ix) else
                break;
            when_mfmt(2)
                tot += atoi(mfld[3]); /* add to total */
            else
                break;                /* end of charges */
        }                             /* end of loop */
        restore(num_ix);              /* return to total rec */
        itoa(tot,mfld[1]);            /* save in record */
        m_dirty;                      /* set dirty bit */
          ...
    }
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