From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 libgfortran/intrinsics/string_intrinsics.c | 102 +++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 libgfortran/intrinsics/string_intrinsics.c

(limited to 'libgfortran/intrinsics/string_intrinsics.c')

diff --git a/libgfortran/intrinsics/string_intrinsics.c b/libgfortran/intrinsics/string_intrinsics.c
new file mode 100644
index 000000000..a1d3b31ab
--- /dev/null
+++ b/libgfortran/intrinsics/string_intrinsics.c
@@ -0,0 +1,102 @@
+/* String intrinsics helper functions.
+   Copyright 2008, 2009 Free Software Foundation, Inc.
+
+This file is part of the GNU Fortran 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 3 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 General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+
+/* Unlike what the name of this file suggests, we don't actually
+   implement the Fortran intrinsics here.  At least, not with the
+   names they have in the standard.  The functions here provide all
+   the support we need for the standard string intrinsics, and the
+   compiler translates the actual intrinsics calls to calls to
+   functions in this file.  */
+
+#include "libgfortran.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+
+/* Helper function to set parts of wide strings to a constant (usually
+   spaces).  */
+
+static gfc_char4_t *
+memset_char4 (gfc_char4_t *b, gfc_char4_t c, size_t len)
+{
+  size_t i;
+
+  for (i = 0; i < len; i++)
+    b[i] = c;
+
+  return b;
+}
+
+/* Compare wide character types, which are handled internally as
+   unsigned 4-byte integers.  */
+int
+memcmp_char4 (const void *a, const void *b, size_t len)
+{
+  const GFC_UINTEGER_4 *pa = a;
+  const GFC_UINTEGER_4 *pb = b;
+  while (len-- > 0)
+    {
+      if (*pa != *pb)
+	return *pa < *pb ? -1 : 1;
+      pa ++;
+      pb ++;
+    }
+  return 0;
+}
+
+
+/* All other functions are defined using a few generic macros in
+   string_intrinsics_inc.c, so we avoid code duplication between the
+   various character type kinds.  */
+
+#undef  CHARTYPE
+#define CHARTYPE char
+#undef  UCHARTYPE
+#define UCHARTYPE unsigned char
+#undef  SUFFIX
+#define SUFFIX(x) x
+#undef  MEMSET
+#define MEMSET memset
+#undef  MEMCMP
+#define MEMCMP memcmp
+
+#include "string_intrinsics_inc.c"
+
+
+#undef  CHARTYPE
+#define CHARTYPE gfc_char4_t
+#undef  UCHARTYPE
+#define UCHARTYPE gfc_char4_t
+#undef  SUFFIX
+#define SUFFIX(x) x ## _char4
+#undef  MEMSET
+#define MEMSET memset_char4
+#undef  MEMCMP
+#define MEMCMP memcmp_char4
+
+#include "string_intrinsics_inc.c"
+
-- 
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