gdbsupport/gdb_vecs.cc

   1 /* Some commonly-used VEC types.
   2
   3    Copyright (C) 2012-2025 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #include "gdb_vecs.h"
  21 #include "host-defs.h"
  22
  23 /* Worker function to split character delimiter separated string of fields
  24    STR into a char pointer vector.  */
  25
  26 static void
  27 delim_string_to_char_ptr_vec_append
  28   (std::vector<gdb::unique_xmalloc_ptr<char>> *vecp, const char *str,
  29    char delimiter)
  30 {
  31   do
  32     {
  33       size_t this_len;
  34       const char *next_field;
  35       char *this_field;
  36
  37       next_field = strchr (str, delimiter);
  38       if (next_field == NULL)
  39         this_len = strlen (str);
  40       else
  41         {
  42           this_len = next_field - str;
  43           next_field++;
  44         }
  45
  46       this_field = (char *) xmalloc (this_len + 1);
  47       memcpy (this_field, str, this_len);
  48       this_field[this_len] = '\0';
  49       vecp->emplace_back (this_field);
  50
  51       str = next_field;
  52     }
  53   while (str != NULL);
  54 }
  55
  56 /* See gdb_vecs.h.  */
  57
  58 std::vector<gdb::unique_xmalloc_ptr<char>>
  59 delim_string_to_char_ptr_vec (const char *str, char delimiter)
  60 {
  61   std::vector<gdb::unique_xmalloc_ptr<char>> retval;
  62
  63   delim_string_to_char_ptr_vec_append (&retval, str, delimiter);
  64
  65   return retval;
  66 }
  67
  68 /* See gdb_vecs.h.  */
  69
  70 void
  71 dirnames_to_char_ptr_vec_append
  72   (std::vector<gdb::unique_xmalloc_ptr<char>> *vecp, const char *dirnames)
  73 {
  74   delim_string_to_char_ptr_vec_append (vecp, dirnames, DIRNAME_SEPARATOR);
  75 }
  76
  77 /* See gdb_vecs.h.  */
  78
  79 std::vector<gdb::unique_xmalloc_ptr<char>>
  80 dirnames_to_char_ptr_vec (const char *dirnames)
  81 {
  82   std::vector<gdb::unique_xmalloc_ptr<char>> retval;
  83
  84   dirnames_to_char_ptr_vec_append (&retval, dirnames);
  85
  86   return retval;
  87 }