intdoc.in: Add entry for DATE_AND_TIME.

1998-07-05  Dave Love  <d.love@dl.ac.uk>
	* intdoc.in: Add entry for DATE_AND_TIME.
	* intrin.def: Add implementation for DATE_AND_TIME.  Make second
	and third args of SYSTEM_CLOCK optional.
	* com.c (ffecom_expr_intrinsic_): New case for DATE_AND_TIME.
	* com-rt.def (FFECOM_gfrtSYSTEM_CLOCK): Call G77_system_clock_0,
	not system_clock_.
	(FFECOM_gfrtDATE_AND_TIME): New DEFGFRT.

From-SVN: r20938

gcc/f/ChangeLog

+1998-07-05  Dave Love  <d.love@dl.ac.uk>
+
+	* intdoc.in: Add entry for DATE_AND_TIME.
+
+	* intrin.def: Add implementation for DATE_AND_TIME.  Make second
+	and third args of SYSTEM_CLOCK optional.
+
+	* com.c (ffecom_expr_intrinsic_): New case for DATE_AND_TIME.
+
+	* com-rt.def (FFECOM_gfrtSYSTEM_CLOCK): Call G77_system_clock_0,
+	not system_clock_.
+	(FFECOM_gfrtDATE_AND_TIME): New DEFGFRT.
+
 Wed Jul  1 11:19:13 1998  Craig Burley  <burley@gnu.org>
 
 	Fix 980701-1.f (which was producing "unaligned trap"

gcc/f/com-rt.def

@@ -143,6 +143,7 @@ DEFGFRT (FFECOM_gfrtDASIN, "d_asin", FFECOM_rttypeDOUBLE_, "&d", FALSE, FALSE)
 DEFGFRT (FFECOM_gfrtDATAN, "d_atan", FFECOM_rttypeDOUBLE_, "&d", FALSE, FALSE)
 DEFGFRT (FFECOM_gfrtDATAN2, "d_atn2", FFECOM_rttypeDOUBLE_, "&d", FALSE, FALSE)
 DEFGFRT (FFECOM_gfrtDATE, "G77_date_0", FFECOM_rttypeVOID_, "&a", FALSE, FALSE)
+DEFGFRT (FFECOM_gfrtDATE_AND_TIME, "G77_date_and_time_0", FFECOM_rttypeVOID_, "&a&a&a&i", FALSE, FALSE)
 DEFGFRT (FFECOM_gfrtL_BESJ0, "j0", FFECOM_rttypeDOUBLE_, "d", FALSE, FALSE)
 DEFGFRT (FFECOM_gfrtL_BESJ1, "j1", FFECOM_rttypeDOUBLE_, "d", FALSE, FALSE)
 DEFGFRT (FFECOM_gfrtL_BESJN, "jn", FFECOM_rttypeDOUBLE_, "id", FALSE, FALSE)
@@ -234,7 +235,7 @@ DEFGFRT (FFECOM_gfrtSRAND, "G77_srand_0", FFECOM_rttypeVOID_, "&i", FALSE, FALSE
 DEFGFRT (FFECOM_gfrtSTAT, "G77_stat_0", FFECOM_rttypeINTEGER_, "&a&i", FALSE, FALSE)
 DEFGFRT (FFECOM_gfrtSYMLNK, "G77_symlnk_0", FFECOM_rttypeINTEGER_, "&a&a", FALSE, FALSE)
 DEFGFRT (FFECOM_gfrtSYSTEM, "G77_system_0", FFECOM_rttypeINTEGER_, "&a", FALSE, FALSE)
-DEFGFRT (FFECOM_gfrtSYSTEM_CLOCK, "system_clock_", FFECOM_rttypeVOID_, "&i&i&i", FALSE, FALSE)
+DEFGFRT (FFECOM_gfrtSYSTEM_CLOCK, "G77_system_clock_0", FFECOM_rttypeVOID_, "&i&i&i", FALSE, FALSE)
 DEFGFRT (FFECOM_gfrtTAN, "r_tan", FFECOM_rttypeREAL_F2C_, "&f", FALSE, FALSE)
 DEFGFRT (FFECOM_gfrtTANH, "r_tanh", FFECOM_rttypeREAL_F2C_, "&f", FALSE, FALSE)
 DEFGFRT (FFECOM_gfrtTIME, "G77_time_0", FFECOM_rttypeLONGINT_, 0, FALSE, FALSE)

gcc/f/com.c

@@ -5204,6 +5204,7 @@ ffecom_expr_intrinsic_ (ffebld expr, tree dest_tree,
     case FFEINTRIN_impCHDIR_func:
     case FFEINTRIN_impCHMOD_func:
     case FFEINTRIN_impDATE:
+    case FFEINTRIN_impDATE_AND_TIME:
     case FFEINTRIN_impDBESJ0:
     case FFEINTRIN_impDBESJ1:
     case FFEINTRIN_impDBESJN:

gcc/f/intdoc.in

@@ -2468,3 +2468,24 @@ scheduled alarm was due to be delivered, or zero if there was no
 previously scheduled alarm.
 @xref{Signal Intrinsic (subroutine)}.
 ")
+
+DEFDOC (DATE_AND_TIME, "Get the current date and time.", "\
+Returns:
+@table @var
+@item @1@
+The date in the form @var{ccyymmdd}: century, year, month and day;
+@item @2@
+The time in the form @samp{@var{hhmmss.ss}}: hours, minutes, seconds
+and milliseconds;
+@item @3@
+The difference between local time and UTC (GMT) in the form @var{Shhmm}:
+sign, hours and minutes, e.g.@ @samp{-0500} (winter in New York);
+@item @4@
+The year, month of the year, day of the month, time difference in
+minutes from UTC, hour of the day, minutes of the hour and milliseconds
+of the second in successive values of the array.
+@end table
+
+On systems where a millisecond timer isn't available, the millisecond
+value is returned as zero.
+")

gcc/f/intdoc.texi

@@ -184,7 +184,7 @@
 * Date Intrinsic::      Get current date as dd-Mon-yy.
 @end ifset
 @ifset familyF90
-* Date_and_Time Intrinsic:: (Reserved for future use.)
+* Date_and_Time Intrinsic:: Get the current date and time.
 @end ifset
 @ifset familyF2U
 * DbesJ0 Intrinsic::    Bessel function (archaic).
@@ -2977,10 +2977,46 @@ for the current (or any) date.
 @cindex Date_and_Time intrinsic
 @cindex intrinsics, Date_and_Time
 
-This intrinsic is not yet implemented.
-The name is, however, reserved as an intrinsic.
-Use @samp{EXTERNAL Date_and_Time} to use this name for an
-external procedure.
+@noindent
+@example
+CALL Date_and_Time(@var{Date}, @var{Ftime}, @var{Zone}, @var{Values})
+@end example
+
+@noindent
+@var{Date}: @code{CHARACTER}; scalar; INTENT(OUT).
+
+@noindent
+@var{Ftime}: @code{CHARACTER}; OPTIONAL; scalar; INTENT(OUT).
+
+@noindent
+@var{Zone}: @code{CHARACTER}; OPTIONAL; scalar; INTENT(OUT).
+
+@noindent
+@var{Values}: @code{INTEGER(KIND=1)}; OPTIONAL; DIMENSION(8); INTENT(OUT).
+
+@noindent
+Intrinsic groups: @code{f90}.
+
+@noindent
+Description:
+
+Returns
+@table @var
+@item Date
+The date in the form @var{ccyymmdd}: century, year, month and day;
+@item Ftime
+The time in the form @samp{@var{hhmmss.ss}}: hours, minutes, seconds
+and milliseconds;
+@item Zone
+The difference between local time and UTC (GMT) in the form @var{Shhmm}:
+sign, hours and minutes, e.g.@ @samp{-0500} (winter in New York);
+@item Values
+The year, month of the year, day of the month, time difference in
+minutes from UTC, hour of the day, minutes of the hour and milliseconds
+of the second in successive values of the array.
+@end table
+On systems where a millisecond timer isn't available, the millisecond
+value is returned as zero.
 
 @end ifset
 @ifset familyF2U
@@ -10006,10 +10042,10 @@ CALL System_Clock(@var{Count}, @var{Rate}, @var{Max})
 @var{Count}: @code{INTEGER(KIND=1)}; scalar; INTENT(OUT).
 
 @noindent
-@var{Rate}: @code{INTEGER(KIND=1)}; scalar; INTENT(OUT).
+@var{Rate}: @code{INTEGER(KIND=1)}; OPTIONAL; scalar; INTENT(OUT).
 
 @noindent
-@var{Max}: @code{INTEGER(KIND=1)}; scalar; INTENT(OUT).
+@var{Max}: @code{INTEGER(KIND=1)}; OPTIONAL; scalar; INTENT(OUT).
 
 @noindent
 Intrinsic groups: @code{f90}.

gcc/f/intrin.def

@@ -1377,7 +1377,7 @@ DEFSPEC (DATE_AND_TIME,
     "DATE_AND_TIME",
     FALSE,
     FFEINTRIN_familyF90,
-    FFEINTRIN_impNONE
+    FFEINTRIN_impDATE_AND_TIME
   )
 DEFSPEC (DBESJ0,
     "DBESJ0",
@@ -3233,6 +3233,7 @@ DEFIMP	(CPU_TIME,	"CPU_TIME",	SECOND,,,	"--:-:Seconds=R*w")
 DEFIMP	(CTIME_func,	"CTIME_func",	CTIME,,,	"A1*:-:STime=I*")
 DEFIMP	(CTIME_subr,	"CTIME_subr",	CTIME,,,	"--:-:Result=A1w,STime=I*")
 DEFIMP	(DATE,		"DATE",		DATE,,,		"--:-:Date=A1w")
+DEFIMP	(DATE_AND_TIME,	"DATE_AND_TIME", DATE_AND_TIME,,, "--:-:Date=A1w,Time=?A1w,Zone=?A1w,Values=?I1(8)w")
 DEFIMP	(DBESJ0,	"DBESJ0",	L_BESJ0,,,	"R2:-:X=R2")
 DEFIMP	(DBESJ1,	"DBESJ1",	L_BESJ1,,,	"R2:-:X=R2")
 DEFIMP	(DBESJN,	"DBESJN",	L_BESJN,,,	"R2:-:N=I*,X=R2")
@@ -3336,7 +3337,7 @@ DEFIMP	(SYMLNK_func,	"SYMLNK_func",	SYMLNK,,,	"I1:-:Path1=A1,Path2=A1")
 DEFIMP	(SYMLNK_subr,	"SYMLNK_subr",	SYMLNK,,,	"--:-:Path1=A1,Path2=A1,Status=?I1w")
 DEFIMP	(SYSTEM_func,	"SYSTEM_func",	SYSTEM,SYSTEM,SYSTEM,"I1:-:Command=A1")
 DEFIMP	(SYSTEM_subr,	"SYSTEM_subr",	SYSTEM,,,	"--:-:Command=A1,Status=?I1w")
-DEFIMP	(SYSTEM_CLOCK,	"SYSTEM_CLOCK",	SYSTEM_CLOCK,,,	"--:-:Count=I1w,Rate=I1w,Max=I1w")
+DEFIMP	(SYSTEM_CLOCK,	"SYSTEM_CLOCK",	SYSTEM_CLOCK,,,	"--:-:Count=I1w,Rate=?I1w,Max=?I1w")
 DEFIMP	(TIME8,		"TIME8",	TIME,,,		"I2:-:")
 DEFIMP	(TIME_unix,	"TIME_unix",	TIME,,,		"I1:-:")
 DEFIMP	(TIME_vxt,	"TIME_vxt",	VXTTIME,,,	"--:-:Time=A1[8]w")