strptime(3) - NetBSD Manual Pages

Command:
Section:
Arch:
Collection:
>>>
STRPTIME(3)               NetBSD Programmer's Manual               STRPTIME(3)


NAME

     strptime - converts a character string to a time value


SYNOPSIS

     #include <time.h>

     char *
     strptime(const char *buf, const char *format, struct tm *tm);


DESCRIPTION

     The strptime function converts the character string pointed to by buf to
     values which are stored in the ``tm'' structure pointed to by tm, using
     the format specified by format.

     The format string consists of zero or more conversion specifications and
     ordinary characters.  All ordinary characters are copied directly into
     the buffer.  A conversion specification consists of a percent sign `%'
     followed by one or two conversion characters which specify the replace-
     ment required. There must be white-space or other non-alphanumeric char-
     acters between any two conversion specifications.

     The LC_TIME category defines the locale values for the conversion speci-
     fications. The following conversion specifications are supported:

     %a    the day of week, using the locale's weekday names; either the ab-
           breviated or full name may be specified.

     %A    the same as %a.

     %b    the month, using the locale's month names; either the abbreviated
           or full name may be specified.

     %B    the same as %b.

     %c    the date and time, using the locale's date and time format.

     %C    the century number [0,99]; leading zeros are permitted but not re-
           quired.

     %d    the day of month [1,31]; leading zeros are permitted but required.

     %D    the date as %m/%d/%y.

     %e    the same as %d.

     %h    the same as %b.

     %H    the hour (24-hour clock) [0,23]; leading zeros are permitted but
           not required.

     %I    the hour (12-hour clock) [1,12]; leading zeros are permitted but
           not required.

     %j    the day number of the year [1,366]; leading zeros are permitted but
           not required.

     %k    the same as %H.

     %l    the same as %I.

     %m    the month number [1,12]; leading zeros are permitted but not re-


           quired.

     %M    the minute [0,59]; leading zeros are permitted but not required.

     %n    any white-space

     %p    the locale's equivalent of a.m. or p.m..

     %r    the time (12-hour clock) with %p, using the locale's time format.

     %R    the time as %H:%M.

     %S    the seconds [0,61]; leading zeros are permitted but not required.

     %t    any white-space

     %T    the time as %H:%M:%S.

     %U    the week number of the year (Sunday as the first day of the week)
           as a decimal number [0,53]; leading zeros are permitted but not re-
           quired.  All days in a year preceding the first Sunday are consid-
           ered to be in week 0.

     %w    the weekday as a decimal number [0,6], with 0 representing Sunday;
           leading zeros are permitted but not required.

     %W    the week number of the year (Monday as the first day of the week)
           as a decimal number [0,53]; leading zeros are permitted but not re-
           quired.  All days in a year preceding the first Monday are consid-
           ered to be in week 0.

     %x    the date, using the locale's date format.

     %X    the time, using the locale's time format.

     %y    the year within the century [0,99]; leading zeros are permitted but
           not required.

     %Y    the year, including the century (i.e., 1996).

     %%    A `%' is written. No argument is converted.

   Modified conversion specifications
     For compatibility, certain conversion specifications can be modified by
     the E and O modifier characters to indicate that an alternative format or
     specification should be used rather than the one normally used by the un-
     modified conversion specification. As there are currently neither alter-
     native formats nor specifications supported by the system, the behavior
     will be as if the unmodified conversion specification were used.


RETURN VALUES

     If successful, the strptime function returns a pointer to the character
     following the last character parsed. Otherwise, a null pointer is re-
     turned.


SEE ALSO

     strftime(3)


STANDARDS

     The strptime() function conforms to X/Open Portability Guide Issue 4
     (``XPG4'').

4.4BSD                          April 23, 1997                               2