intrinsic.c (add_functions): Add ctime and fdate intrinsics.

	* intrinsic.c (add_functions): Add ctime and fdate intrinsics.
	(add_subroutines): Likewise.
	* intrinsic.h: Prototypes for gfc_check_ctime,
	gfc_check_ctime_sub, gfc_check_fdate_sub, gfc_resolve_ctime,
	gfc_resolve_fdate, gfc_resolve_ctime_sub, gfc_resolve_fdate_sub.
	* gfortran.h: Add GFC_ISYM_CTIME and GFC_ISYM_FDATE.
	* iresolve.c (gfc_resolve_ctime, gfc_resolve_fdate,
	gfc_resolve_ctime_sub, gfc_resolve_fdate_sub): New functions.
	* trans-decl.c (gfc_build_intrinsic_function_decls): Add
	gfor_fndecl_fdate and gfor_fndecl_ctime.
	* check.c (gfc_check_ctime, gfc_check_ctime_sub,
	gfc_check_fdate_sub): New functions.
	* trans-intrinsic.c (gfc_conv_intrinsic_ctime,
	gfc_conv_intrinsic_fdate): New functions.
	(gfc_conv_intrinsic_function): Add cases for GFC_ISYM_CTIME
	and GFC_ISYM_FDATE.
	* intrinsic.texi: Documentation for the new CTIME and FDATE
	intrinsics.
	* trans.h: Declarations for gfor_fndecl_ctime and gfor_fndecl_fdate.

	* intrinsics/ctime.c: New file.
	* configure.ac: Add check for ctime.
	* Makefile.am: Add ctime.c
	* configure: Regenerate.
	* config.h.in: Regenerate.
	* Makefile.in: Regenerate.

From-SVN: r106558

7 files changed, 181 insertions, 3 deletions

diff --git a/libgfortran/ChangeLog b/libgfortran/ChangeLog
index 9905c4f..bfe60d3 100644
--- a/libgfortran/ChangeLog
+++ b/libgfortran/ChangeLog
@@ -1,3 +1,12 @@
+2005-11-06  Francois-Xavier Coudert  <coudert@clipper.ens.fr>
+
+	* intrinsics/ctime.c: New file.
+	* configure.ac: Add check for ctime.
+	* Makefile.am: Add ctime.c
+	* configure: Regenerate.
+	* config.h.in: Regenerate.
+	* Makefile.in: Regenerate.
+
 2005-11-05  Richard Guenther  <rguenther@suse.de>
 
 	* configure.ac: Use AM_FCFLAGS for extra flags, not FCFLAGS.
diff --git a/libgfortran/Makefile.am b/libgfortran/Makefile.am
index a786a38..34c04fa 100644
--- a/libgfortran/Makefile.am
+++ b/libgfortran/Makefile.am
@@ -44,6 +44,7 @@ intrinsics/c99_functions.c \
 intrinsics/chdir.c \
 intrinsics/cpu_time.c \
 intrinsics/cshift0.c \
+intrinsics/ctime.c \
 intrinsics/date_and_time.c \
 intrinsics/env.c \
 intrinsics/erf.c \
diff --git a/libgfortran/Makefile.in b/libgfortran/Makefile.in
index b8f52d5..6370f26 100644
--- a/libgfortran/Makefile.in
+++ b/libgfortran/Makefile.in
@@ -165,7 +165,7 @@ am__objects_32 = close.lo file_pos.lo format.lo inquire.lo \
 	list_read.lo lock.lo open.lo read.lo transfer.lo unit.lo \
 	unix.lo write.lo
 am__objects_33 = associated.lo abort.lo args.lo bessel.lo \
-	c99_functions.lo chdir.lo cpu_time.lo cshift0.lo \
+	c99_functions.lo chdir.lo cpu_time.lo cshift0.lo ctime.lo \
 	date_and_time.lo env.lo erf.lo eoshift0.lo eoshift2.lo \
 	etime.lo exit.lo flush.lo fnum.lo gerror.lo getcwd.lo \
 	getlog.lo getXid.lo hyper.lo hostnm.lo kill.lo ierrno.lo \
@@ -385,6 +385,7 @@ intrinsics/c99_functions.c \
 intrinsics/chdir.c \
 intrinsics/cpu_time.c \
 intrinsics/cshift0.c \
+intrinsics/ctime.c \
 intrinsics/date_and_time.c \
 intrinsics/env.c \
 intrinsics/erf.c \
@@ -2235,6 +2236,9 @@ cpu_time.lo: intrinsics/cpu_time.c
 cshift0.lo: intrinsics/cshift0.c
 	$(LIBTOOL) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o cshift0.lo `test -f 'intrinsics/cshift0.c' || echo '$(srcdir)/'`intrinsics/cshift0.c
 
+ctime.lo: intrinsics/ctime.c
+	$(LIBTOOL) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o ctime.lo `test -f 'intrinsics/ctime.c' || echo '$(srcdir)/'`intrinsics/ctime.c
+
 date_and_time.lo: intrinsics/date_and_time.c
 	$(LIBTOOL) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o date_and_time.lo `test -f 'intrinsics/date_and_time.c' || echo '$(srcdir)/'`intrinsics/date_and_time.c
 
diff --git a/libgfortran/config.h.in b/libgfortran/config.h.in
index 6dc11a1..04cda0c 100644
--- a/libgfortran/config.h.in
+++ b/libgfortran/config.h.in
@@ -252,6 +252,9 @@
 /* libm includes ctanl */
 #undef HAVE_CTANL
 
+/* Define to 1 if you have the `ctime' function. */
+#undef HAVE_CTIME
+
 /* libm includes erf */
 #undef HAVE_ERF
 
diff --git a/libgfortran/configure b/libgfortran/configure
index a332726..d46d608 100755
--- a/libgfortran/configure
+++ b/libgfortran/configure
@@ -7519,7 +7519,8 @@ done
 
 
 
-for ac_func in sleep time ttyname signal alarm
+
+for ac_func in sleep time ttyname signal alarm ctime
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
 echo "$as_me:$LINENO: checking for $ac_func" >&5
diff --git a/libgfortran/configure.ac b/libgfortran/configure.ac
index 6ca4565..bf2c25d 100644
--- a/libgfortran/configure.ac
+++ b/libgfortran/configure.ac
@@ -167,7 +167,7 @@ AC_CHECK_MEMBERS([struct stat.st_rdev])
 # Check for library functions.
 AC_CHECK_FUNCS(getrusage times mkstemp strtof strtold snprintf ftruncate chsize)
 AC_CHECK_FUNCS(chdir strerror getlogin gethostname kill link symlink perror)
-AC_CHECK_FUNCS(sleep time ttyname signal alarm)
+AC_CHECK_FUNCS(sleep time ttyname signal alarm ctime)
 
 # Check libc for getgid, getpid, getuid
 AC_CHECK_LIB([c],[getgid],[AC_DEFINE([HAVE_GETGID],[1],[libc includes getgid])])
diff --git a/libgfortran/intrinsics/ctime.c b/libgfortran/intrinsics/ctime.c
new file mode 100644
index 0000000..1499fd9
--- /dev/null
+++ b/libgfortran/intrinsics/ctime.c
@@ -0,0 +1,160 @@
+/* Implementation of the CTIME and FDATE g77 intrinsics.
+   Copyright (C) 2005 Free Software Foundation, Inc.
+   Contributed by François-Xavier Coudert <coudert@clipper.ens.fr>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+In addition to the permissions in the GNU General Public License, the
+Free Software Foundation gives you unlimited permission to link the
+compiled version of this file into combinations with other programs,
+and to distribute those combinations without any restriction coming
+from the use of this file.  (The General Public License restrictions
+do apply in other respects; for example, they cover modification of
+the file, and distribution when not linked into a combine
+executable.)
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public
+License along with libgfortran; see the file COPYING.  If not,
+write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.  */
+
+#include "config.h"
+#include "libgfortran.h"
+
+#ifdef TIME_WITH_SYS_TIME
+#  include <sys/time.h>
+#  include <time.h>
+#else
+#  if HAVE_SYS_TIME_H
+#    include <sys/time.h>
+#  else
+#    ifdef HAVE_TIME_H
+#      include <time.h>
+#    endif
+#  endif
+#endif
+
+#include <string.h>
+
+
+extern void fdate (char **, gfc_charlen_type *);
+export_proto(fdate);
+
+void
+fdate (char ** date, gfc_charlen_type * date_len)
+{
+#if defined(HAVE_TIME) && defined(HAVE_CTIME)
+  int i;
+  time_t now = time(NULL);
+  *date = ctime (&now);
+  if (*date != NULL)
+    {
+      *date = strdup (*date);
+      *date_len = strlen (*date);
+
+      i = 0;
+      while ((*date)[i])
+       {
+         if ((*date)[i] == '\n')
+           (*date)[i] = ' ';
+         i++;
+       }
+      return;
+    }
+#endif
+
+  *date = NULL;
+  *date_len = 0;
+}
+
+
+extern void fdate_sub (char *, gfc_charlen_type);
+export_proto(fdate_sub);
+
+void
+fdate_sub (char * date, gfc_charlen_type date_len)
+{
+#if defined(HAVE_TIME) && defined(HAVE_CTIME)
+  int i;
+  char *d;
+  time_t now = time(NULL);
+#endif
+  
+  memset (date, ' ', date_len);
+#if defined(HAVE_TIME) && defined(HAVE_CTIME)
+  d = ctime (&now);
+  if (d != NULL)
+    {
+      i = 0;
+      while (*d && *d != '\n' && i < date_len)
+       date[i++] = *(d++);
+    }
+#endif
+}
+
+
+
+extern void PREFIX(ctime) (char **, gfc_charlen_type *, GFC_INTEGER_8);
+export_proto_np(PREFIX(ctime));
+
+void
+PREFIX(ctime) (char ** date, gfc_charlen_type * date_len, GFC_INTEGER_8 t)
+{
+#if defined(HAVE_CTIME)
+  time_t now = t;
+  int i;
+  *date = ctime (&now);
+  if (*date != NULL)
+    {
+      *date = strdup (*date);
+      *date_len = strlen (*date);
+
+      i = 0;
+      while ((*date)[i])
+       {
+         if ((*date)[i] == '\n')
+           (*date)[i] = ' ';
+         i++;
+       }
+      return;
+    }
+#endif
+
+  *date = NULL;
+  *date_len = 0;
+}
+
+
+extern void ctime_sub (GFC_INTEGER_8 *, char *, gfc_charlen_type);
+export_proto(ctime_sub);
+
+void
+ctime_sub (GFC_INTEGER_8 * t, char * date, gfc_charlen_type date_len)
+{
+#if defined(HAVE_CTIME)
+  int i;
+  char *d;
+  time_t now = *t;
+#endif
+  
+  memset (date, ' ', date_len);
+#if defined(HAVE_CTIME)
+  d = ctime (&now);
+  if (d != NULL)
+    {
+      i = 0;
+      while (*d && *d != '\n' && i < date_len)
+       date[i++] = *(d++);
+    }
+#endif
+}