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Diffstat (limited to 'gdbsupport/gdb_vecs.h')
-rw-r--r-- | gdbsupport/gdb_vecs.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/gdbsupport/gdb_vecs.h b/gdbsupport/gdb_vecs.h new file mode 100644 index 0000000..ca7097a --- /dev/null +++ b/gdbsupport/gdb_vecs.h @@ -0,0 +1,88 @@ +/* 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 */ |