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* time.c: new method gmtoff', gmt_offset' and `utc_offset'.

Browse source 
(time_utc_offset): new function.
(Init_Time): bind above methods to `time_utc_offset'.

* time.c: 64bit time_t support.
(time_s_at): use NUM2LONG instead of NUM2INT for tv_sec.
(time_arg): initialize tm_isdst correctly.
use long to initialize tm_year.
(search_time_t): renamed from `make_time_t'.
(make_time_t): call `timegm' and `mktime' instead of `search_time_t'
if availabe.
(time_to_i): use LONG2NUM instead of INT2NUM.
(time_localtime): check localtime failure.
(time_gmtime): check gmtime failure.
(time_year): use LONG2NUM instead of INT2FIX.
(time_to_a): use long for tm_year.
(time_dump): check tm_year which is not representable with 17bit.
(time_load): initialize tm_isdst.

* configure.in: check existence of `mktime' and `timegm'.
check existence of tm_gmtoff field of struct tm.
fix negative time_t for 64bit time_t.

* missing/strftime.c: fix overflow by tm_year + 1900.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@1912 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
akr 2001-12-17 06:45:37 +00:00
parent 39c0252e04
commit b48e38c526
4 changed files with 180 additions and 27 deletions
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13
configure.in
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@ -300,8 +300,17 @@ AC_CHECK_FUNCS(fmod killpg drand48 random wait4 waitpid syscall chroot\
setitimer setruid seteuid setreuid setresuid setproctitle\
setrgid setegid setregid setresgid pause lchown lchmod\
getpgrp setpgrp getpgid setpgid getgroups getpriority getrlimit\
dlopen sigprocmask sigaction _setjmp setsid telldir seekdir fchmod)
dlopen sigprocmask sigaction _setjmp setsid telldir seekdir fchmod\
mktime timegm)
AC_STRUCT_TIMEZONE
AC_CACHE_CHECK(for struct tm.tm_gmtoff, rb_cv_member_struct_tm_tm_gmtoff,
[AC_TRY_COMPILE([#include <time.h>],
[struct tm t; t.tm_gmtoff = 3600;],
[rb_cv_member_struct_tm_tm_gmtoff=yes],
[rb_cv_member_struct_tm_tm_gmtoff=no])])
if test "$rb_cv_member_struct_tm_tm_gmtoff" = yes; then
AC_DEFINE(HAVE_STRUCT_TM_TM_GMTOFF)
fi
AC_CACHE_CHECK(for external int daylight, rb_cv_have_daylight,
[AC_TRY_LINK([#include <time.h>
int i;],
@ -337,7 +346,7 @@ main()
struct tm *tm;
check(gmtime(&t), 69, 12, 31, 23, 59);
t = -0x80000000;
t = ~(time_t)0 << 31;
check(gmtime(&t), 1, 12, 13, 20, 52);
return 0;
}