VMS Help DCE_DTS, Application Routines, utc_mulftime  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 NAME

   utc_mulftime - Multiplies a relative binary timestamp by a
                  floating-point value.

 SYNOPSIS

   #include <dce/utc.h>

   int utc_mulftime( utc_t *result,
                     utc_t *utc1,
                     double factor );

 PARAMETERS

   Input

   utc1
       Relative binary timestamp. Use NULL if you want this routine to
       use the current time for this parameter.

   factor
       Real scale factor (double-precision, floating-point value).

   Output

   result
       Resulting relative binary timestamp.

 DESCRIPTION

   The utc_mulftime() routine multiplies a relative binary timestamp by
   a floating-point value. Either or both may be negative; the resulting
   relative binary timestamp has the appropriate sign. The unsigned
   inaccuracy in the relative binary timestamp is also multiplied by the
   absolute value of the floating-point value.

 RETURN VALUES

    0    Indicates that the routine executed successfully.

   -1    Indicates an invalid time argument or invalid results.

 EXAMPLES

   The following example scales a relative time by a floating-point
   factor and prints the result.

        utc_t       relutc, scaledutc;
        struct tm   scaledreltm;
        char        timstr[UTC_MAX_STR_LEN];

        /*   Assume relutc contains the time to scale.                 */
        utc_mulftime(&scaledutc,           /* Out: Scaled rel time     */
                     &relutc,              /* In:  Rel time to scale   */
                     17.65);               /* In:  Scale factor        */

        utc_ascreltime(timstr,             /* Out: ASCII rel time      */
                       UTC_MAX_STR_LEN,    /* In:  Input buffer length */
                       &scaledutc);        /* In:  Rel time to convert */

        printf("%s\n",timstr);

        /*    Convert it to a tm structure and print it.               */
        utc_reltime(&scaledreltm,          /* Out: Scaled rel tm       */
                    (long *)0,             /* Out: Scaled rel nano-sec */
                    (struct tm *)0,        /* Out: Scaled rel inacc tm */
                    (long *)0,             /* Out: Scd rel inacc nanos */
                    &scaledutc);           /* In:  Rel time to convert */

        printf( "Approximately %d days, %d hours and %d minutes\n",
                scaledreltm.tm_yday,
                scaledreltm.tm_hour,
                scaledreltm.tm_min );

 RELATED INFORMATION

   Functions:  utc_multime