1.1 --- a/DateUtils.m	Wed Apr 02 14:45:33 2008 -0700
     1.2 +++ b/DateUtils.m	Fri May 02 12:49:43 2008 -0700
     1.3 @@ -15,6 +15,22 @@
     1.4  #include <unistd.h>
     1.5  
     1.6  
     1.7 +/** Absolute time (since 'reference date') to NSDate. 0.0 -> nil. */
     1.8 +NSDate* $date( CFAbsoluteTime time )
     1.9 +{
    1.10 +    CAssert(time>=0.0 && time < 1.0e15, @"Bogus timestamp %g",time);
    1.11 +    return time ?[NSDate dateWithTimeIntervalSinceReferenceDate: time] :nil;
    1.12 +}
    1.13 +
    1.14 +
    1.15 +/** NSDate to absolute time (since 'reference date'). nil -> 0.0 */
    1.16 +CFAbsoluteTime $time( NSDate* date )
    1.17 +{
    1.18 +    return date ?[date timeIntervalSinceReferenceDate] :0.0;
    1.19 +}
    1.20 +
    1.21 +
    1.22 +
    1.23  NSTimeInterval TimeIntervalSinceBoot(void)
    1.24  {
    1.25      // From http://developer.apple.com/qa/qa2004/qa1398.html