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| <h4 class="subsection">21.4.9 Time Functions Example</h4> |
| |
| <p>Here is an example program showing the use of some of the calendar time |
| functions. |
| |
| <pre class="smallexample"> #include <time.h> |
| #include <stdio.h> |
| |
| #define SIZE 256 |
| |
| int |
| main (void) |
| { |
| char buffer[SIZE]; |
| time_t curtime; |
| struct tm *loctime; |
| |
| /* <span class="roman">Get the current time.</span> */ |
| curtime = time (NULL); |
| |
| /* <span class="roman">Convert it to local time representation.</span> */ |
| loctime = localtime (&curtime); |
| |
| /* <span class="roman">Print out the date and time in the standard format.</span> */ |
| fputs (asctime (loctime), stdout); |
| |
| /* <span class="roman">Print it out in a nice format.</span> */ |
| strftime (buffer, SIZE, "Today is %A, %B %d.\n", loctime); |
| fputs (buffer, stdout); |
| strftime (buffer, SIZE, "The time is %I:%M %p.\n", loctime); |
| fputs (buffer, stdout); |
| |
| return 0; |
| } |
| </pre> |
| <p>It produces output like this: |
| |
| <pre class="smallexample"> Wed Jul 31 13:02:36 1991 |
| Today is Wednesday, July 31. |
| The time is 01:02 PM. |
| </pre> |
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