1 files changed, 88 insertions, 0 deletions
diff --git a/gdbsupport/gdb_vecs.h b/gdbsupport/gdb_vecs.h
new file mode 100644
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+++ b/gdbsupport/gdb_vecs.h
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+/* Some commonly-used VEC types.
+
+   Copyright (C) 2012-2020 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   This program 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.
+
+   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef COMMON_GDB_VECS_H
+#define COMMON_GDB_VECS_H
+
+/* Split STR, a list of DELIMITER-separated fields, into a char pointer vector.
+
+   You may modify the returned strings.  */
+
+extern std::vector<gdb::unique_xmalloc_ptr<char>>
+  delim_string_to_char_ptr_vec (const char *str, char delimiter);
+
+/* Like dirnames_to_char_ptr_vec, but append the directories to *VECP.  */
+
+extern void dirnames_to_char_ptr_vec_append
+  (std::vector<gdb::unique_xmalloc_ptr<char>> *vecp, const char *dirnames);
+
+/* Split DIRNAMES by DIRNAME_SEPARATOR delimiter and return a list of all the
+   elements in their original order.  For empty string ("") DIRNAMES return
+   list of one empty string ("") element.
+
+   You may modify the returned strings.  */
+
+extern std::vector<gdb::unique_xmalloc_ptr<char>>
+  dirnames_to_char_ptr_vec (const char *dirnames);
+
+/* Remove the element pointed by iterator IT from VEC, not preserving the order
+   of the remaining elements.  Return the removed element.  */
+
+template <typename T>
+T
+unordered_remove (std::vector<T> &vec, typename std::vector<T>::iterator it)
+{
+  gdb_assert (it >= vec.begin () && it < vec.end ());
+
+  T removed = std::move (*it);
+  if (it != vec.end () - 1)
+    *it = std::move (vec.back ());
+  vec.pop_back ();
+
+  return removed;
+}
+
+/* Remove the element at position IX from VEC, not preserving the order of the
+   remaining elements.  Return the removed element.  */
+
+template <typename T>
+T
+unordered_remove (std::vector<T> &vec, typename std::vector<T>::size_type ix)
+{
+  gdb_assert (ix < vec.size ());
+
+  return unordered_remove (vec, vec.begin () + ix);
+}
+
+/* Remove the element at position IX from VEC, preserving the order the
+   remaining elements.  Return the removed element.  */
+
+template <typename T>
+T
+ordered_remove (std::vector<T> &vec, typename std::vector<T>::size_type ix)
+{
+  gdb_assert (ix < vec.size ());
+
+  T removed = std::move (vec[ix]);
+  vec.erase (vec.begin () + ix);
+
+  return removed;
+}
+
+#endif /* COMMON_GDB_VECS_H */