* check.c (gfc_check_getcwd_sub): Fix seg fault.

	* check.c (gfc_check_exit,gfc_check_umask,gfc_check_umask_sub,
	gfc_check_unlink,gfc_check_unlink_sub): New functions
	* gfortran.h (GFC_ISYM_UMASK,GFC_ISYM_UNLINK): New symbols
	* intrinsic.c (add_functions,add_subroutines): Add umask, unlink,
	exit to intrinsics symbol tables.
	* intrinsic.h (gfc_check_umask,gfc_check_unlink,gfc_check_exit,
	gfc_check_umask_sub,gfc_check_unlink_sub,gfc_resolve_umask,
	gfc_resolve_unlink,gfc_resolve_exit,gfc_resolve_umask_sub,
	gfc_resolve_unlink_sub): Add and sort prototypes.
	* iresolve.c (gfc_resolve_umask,gfc_resolve_unlink,gfc_resolve_exit,
	gfc_resolve_umask_sub,gfc_resolve_unlink_sub): New functions
	* trans-intrinsic.c (gfc_conv_intrinsic_function): Use symbols

libgfortran/
	* Makefile.am: Add intrinsics/{umask.c,unlink.c,exit.c}
	* Makefile.in: Regenerated
	* intrinsics/umask.c: New file
	* intrinsics/unlink.c: ditto
	* intrinsics/exit.c: ditto


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@90949 138bc75d-0d04-0410-961f-82ee72b054a4

5 files changed, 233 insertions, 13 deletions

diff --git a/libgfortran/ChangeLog b/libgfortran/ChangeLog
index 15315d270f7..3324b0f7dfa 100644
--- a/libgfortran/ChangeLog
+++ b/libgfortran/ChangeLog
@@ -1,3 +1,11 @@
+2004-11-20  Steven G. Kargl  <kargls@comcast.net>
+
+	* Makefile.am: Add intrinsics/{umask.c,unlink.c,exit.c}
+	* Makefile.in: Regenerated
+	* intrinsics/umask.c: New file
+	* intrinsics/unlink.c: ditto
+	* intrinsics/exit.c: ditto
+
 2004-11-18  Victor Leikehman  <lei@il.ibm.com>
 
 	* m4/matmul.m4: Loops reordered to improve cache behavior.
@@ -273,7 +281,7 @@
 
 	PR fortran/17143	
 	* runtime/error.c (itoa): keep from overflowing during
-        mod operation by using unsigned variable.
+	mod operation by using unsigned variable.
 
 2004-08-24  Bud Davis  <bdavis9659@comcast.net>
 
@@ -545,9 +553,9 @@
 
 	PR gfortran/14897
 	* io/transfer.c (formatted_transfer): position is unique
-         for T and TL edit descriptors.
+	 for T and TL edit descriptors.
 	(data_transfer_init): set record length to size of internal
-         file.
+	 file.
 
 2004-06-09  Bud Davis  <bdavis9659@comcast.net>
 
@@ -743,7 +751,7 @@
 
 	PR fortran/14906
 	* io/format.c (format_item): gracefully handle a ')'
-        when it is the first character encountered in the string.
+	when it is the first character encountered in the string.
 
 2004-04-11  Bud Davis  <bdavis9659@comcast.net>
 
@@ -809,7 +817,7 @@
 	PR 13919
 	* io/io.h (global_t):
 	* io/list_read.c (next_char,list_formatted_read,ist_formatted_read):
-          Move eof_jmp to a global structure.
+	  Move eof_jmp to a global structure.
 	* io/transfer.c(finalize_transfer) : Set up eof_jump for callers.
 
 2004-03-24  Bud Davis  <bdavis9659@comcast.net>
@@ -1233,14 +1241,14 @@
 
 2003-04-11  Xiaoqiang Zhang <zhangapache@yahoo.com>
 
-        * io/write.c (extract_real): Ouput floating point value.
-        (write_float): New Function.
-        (write_e, write_f, write_en, write_es): Modified
-        * io/transfer.c (formatted_transfer): Modified.
-        * libgfor.h (default_rtoa): Declaration.
-        (rtoa): Declaration.
-        * runtime/error.c (default_rtoa): New Function.
-        (rtoa): New Function.
+	* io/write.c (extract_real): Ouput floating point value.
+	(write_float): New Function.
+	(write_e, write_f, write_en, write_es): Modified
+	* io/transfer.c (formatted_transfer): Modified.
+	* libgfor.h (default_rtoa): Declaration.
+	(rtoa): Declaration.
+	* runtime/error.c (default_rtoa): New Function.
+	(rtoa): New Function.
 
 2003-04-05  Paul Brook  <paul@nowt.org>
 
diff --git a/libgfortran/Makefile.am b/libgfortran/Makefile.am
index df6335e10ea..50a3dacb144 100644
--- a/libgfortran/Makefile.am
+++ b/libgfortran/Makefile.am
@@ -50,6 +50,7 @@ intrinsics/erf.c \
 intrinsics/eoshift0.c \
 intrinsics/eoshift2.c \
 intrinsics/etime.c \
+intrinsics/exit.c \
 intrinsics/getcwd.c \
 intrinsics/getXid.c \
 intrinsics/ishftc.c \
@@ -67,6 +68,8 @@ intrinsics/selected_int_kind.f90 \
 intrinsics/selected_real_kind.f90 \
 intrinsics/system_clock.c \
 intrinsics/transpose_generic.c \
+intrinsics/umask.c \
+intrinsics/unlink.c \
 intrinsics/unpack_generic.c \
 runtime/in_pack_generic.c \
 runtime/in_unpack_generic.c \
diff --git a/libgfortran/intrinsics/exit.c b/libgfortran/intrinsics/exit.c
new file mode 100644
index 00000000000..6ae4dfdf335
--- /dev/null
+++ b/libgfortran/intrinsics/exit.c
@@ -0,0 +1,49 @@
+/* Implementation of the EXIT intrinsic.
+   Copyright (C) 2004 Free Software Foundation, Inc.
+   Contributed by Steven G. Kargl <kargls@comcast.net>.
+
+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 Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+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 Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with libgfor; see the file COPYING.LIB.  If not,
+write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+
+#include "config.h"
+#include "libgfortran.h"
+
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+/* SUBROUTINE EXIT(STATUS)
+   INTEGER, INTENT(IN), OPTIONAL :: STATUS  */
+
+void
+prefix(exit_i4) (GFC_INTEGER_4 * status)
+{
+
+  if (status == NULL)
+    exit(0);
+  exit(*status);
+}
+
+void
+prefix(exit_i8) (GFC_INTEGER_8 * status)
+{
+
+  if (status == NULL)
+    exit(0);
+  exit((int) *status);
+}
diff --git a/libgfortran/intrinsics/umask.c b/libgfortran/intrinsics/umask.c
new file mode 100644
index 00000000000..cf41451e31a
--- /dev/null
+++ b/libgfortran/intrinsics/umask.c
@@ -0,0 +1,75 @@
+/* Implementation of the UMASK intrinsic.
+   Copyright (C) 2004 Free Software Foundation, Inc.
+   Contributed by Steven G. Kargl <kargls@comcast.net>.
+
+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 Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+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 Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with libgfor; see the file COPYING.LIB.  If not,
+write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+
+#include "config.h"
+#include "libgfortran.h"
+
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+
+/* SUBROUTINE UMASK(MASK, OLD)
+   INTEGER, INTENT(IN) :: MASK
+   INTEGER, INTENT(OUT), OPTIONAL :: OLD  */
+
+void
+prefix(umask_i4_sub) (GFC_INTEGER_4 * mask, GFC_INTEGER_4 * old)
+{
+  mode_t val;
+
+  val = umask((mode_t) *mask);
+  if (old != NULL)
+    *old = (GFC_INTEGER_4) val;
+}
+
+void
+prefix(umask_i8_sub) (GFC_INTEGER_8 * mask, GFC_INTEGER_8 * old)
+{
+  mode_t val;
+
+  val = umask((mode_t) *mask);
+  if (old != NULL)
+    *old = (GFC_INTEGER_8) val;
+}
+
+/* INTEGER FUNCTION UMASK(MASK)
+   INTEGER, INTENT(IN) :: MASK  */
+
+GFC_INTEGER_4
+prefix(umask) (GFC_INTEGER_4 * mask)
+{
+  GFC_INTEGER_4 old;
+  prefix(umask_i4_sub) (mask, &old);
+  return old;
+}
+
+GFC_INTEGER_8
+prefix(umask_i8) (GFC_INTEGER_8 * mask)
+{
+  GFC_INTEGER_8 old;
+  prefix(umask_i8_sub) (mask, &old);
+  return old;
+}
diff --git a/libgfortran/intrinsics/unlink.c b/libgfortran/intrinsics/unlink.c
new file mode 100644
index 00000000000..11c35099a90
--- /dev/null
+++ b/libgfortran/intrinsics/unlink.c
@@ -0,0 +1,85 @@
+/* Implementation of the UNLINK intrinsic.
+   Copyright (C) 2004 Free Software Foundation, Inc.
+   Contributed by Steven G. Kargl <kargls@comcast.net>.
+
+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 Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+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 Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with libgfor; see the file COPYING.LIB.  If not,
+write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include "config.h"
+#include "libgfortran.h"
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+
+#include <errno.h>
+
+/* SUBROUTINE UNLINK(NAME, STATUS)
+   CHARACTER(LEN= ), INTENT(IN) :: NAME
+   INTEGER, INTENT(OUT), OPTIONAL :: STATUS)  */
+
+void
+prefix(unlink_i4_sub) (char * name, GFC_INTEGER_4 * status,
+		       gfc_charlen_type name_len)
+{
+
+  char *str, *s;
+  GFC_INTEGER_4 stat;
+
+  /* Trim trailing spaces from name.  */
+  while (name_len > 0 && name[name_len - 1] == ' ')
+    name_len--;
+
+  /* Make a null terminated copy of the string.  */
+  str = gfc_alloca (name_len + 1);
+  memcpy (str, name, name_len);
+  str[name_len] = '\0'; 
+
+  stat = unlink (str);
+
+  if (status != NULL) 
+    *status = (stat == 0) ? stat : errno;
+}
+
+
+void
+prefix(unlink_i8_sub) (char * name, GFC_INTEGER_8 * status,
+		               gfc_charlen_type name_len)
+{
+
+  GFC_INTEGER_4 status4;
+
+  prefix (unlink_i4_sub) (name, &status4, name_len);
+  if (status)
+    *status = status4;
+}
+
+
+/* INTEGER FUNCTION UNLINK(NAME)
+   CHARACTER(LEN= ), INTENT(IN) :: NAME  */
+
+GFC_INTEGER_4
+prefix(unlink) (char * name, gfc_charlen_type name_len)
+{
+  GFC_INTEGER_4 status;
+  prefix(unlink_i4_sub) (name, &status, name_len);
+  return status;
+}
+