41 {
42
43 double jsec;
44
45
47
48
49 if (argc < 8)
50 ERRMSG(
"Missing or invalid command-line arguments.\n\n"
51 "Usage: time2jsec <year> <mon> <day> <hour> <min> <sec> <remain>\n\n"
52 "Use -h for full help.");
53
54
55 const int year = atoi(argv[1]);
56 const int mon = atoi(argv[2]);
57 const int day = atoi(argv[3]);
58 const int hour = atoi(argv[4]);
59 const int min = atoi(argv[5]);
60 const int sec = atoi(argv[6]);
61 const double remain = atof(argv[7]);
62
63
64 time2jsec(year, mon, day, hour, min, sec, remain, &jsec);
65 printf("%.2f\n", jsec);
66
67 return EXIT_SUCCESS;
68}
void time2jsec(const int year, const int mon, const int day, const int hour, const int min, const int sec, const double remain, double *jsec)
Converts time components to seconds since January 1, 2000, 12:00:00 UTC.
#define ERRMSG(...)
Print an error message with contextual information and terminate the program.
#define USAGE
Print usage information on -h or --help.