help to new C programmer with time.h

[Paul Falstad]

swood at vela.acs.oakland.edu ( EVENSONG) wrote:
>main()
>{
>  struct tm tt;
>  time_t lt;
>  int d, m;
>
>  time(&lt);
>  d = tt.tm_mday;
>  m = tt.tm_mon;
>
>  printf("Day %d Month %d\n", d, m);
>}

Well, obviously the call to time isn't doing a thing to struct tm tt.
You need to explicitly set it.

   struct tm tt;
   time_t lt;

   time(&lt);
   tt = *localtime(&lt);
   d = ...

Or (better)

   struct tm *tt;
   time_t lt;

   time(&lt);
   tt = localtime(&lt);
   d = tt->tm_mday;
   m = tt->tm_mon;

--
Paul Falstad, pfalstad at phoenix.princeton.edu PLink:HYPNOS GEnie:P.FALSTAD
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