lib/gl_xset.h

   1 /* Abstract set data type, with out-of-memory checking.
   2    Copyright (C) 2009-2021 Free Software Foundation, Inc.
   3    Written by Bruno Haible <bruno@clisp.org>, 2009.
   4
   5    This program is free software: you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  17
  18 #ifndef _GL_XSET_H
  19 #define _GL_XSET_H
  20
  21 #include "gl_set.h"
  22 #include "xalloc.h"
  23
  24 #ifndef _GL_INLINE_HEADER_BEGIN
  25  #error "Please include config.h first."
  26 #endif
  27 _GL_INLINE_HEADER_BEGIN
  28 #ifndef GL_XSET_INLINE
  29 # define GL_XSET_INLINE _GL_INLINE
  30 #endif
  31
  32
  33 #ifdef __cplusplus
  34 extern "C" {
  35 #endif
  36
  37 /* These functions are thin wrappers around the corresponding functions with
  38    _nx_ infix from gl_set.h.  Upon out-of-memory, they invoke xalloc_die (),
  39    instead of returning an error indicator.  */
  40 #if 0 /* These are defined inline below.  */
  41 extern gl_set_t gl_set_create_empty (gl_set_implementation_t implementation,
  42                                      gl_setelement_equals_fn equals_fn,
  43                                      gl_setelement_hashcode_fn hashcode_fn,
  44                                      gl_setelement_dispose_fn dispose_fn);
  45 extern bool gl_set_add (gl_set_t set, const void *elt);
  46 #endif
  47
  48 GL_XSET_INLINE gl_set_t
  49 gl_set_create_empty (gl_set_implementation_t implementation,
  50                      gl_setelement_equals_fn equals_fn,
  51                      gl_setelement_hashcode_fn hashcode_fn,
  52                      gl_setelement_dispose_fn dispose_fn)
  53 {
  54   gl_set_t result =
  55     gl_set_nx_create_empty (implementation, equals_fn, hashcode_fn, dispose_fn);
  56   if (result == NULL)
  57     xalloc_die ();
  58   return result;
  59 }
  60
  61 GL_XSET_INLINE bool
  62 gl_set_add (gl_set_t set, const void *elt)
  63 {
  64   int result = gl_set_nx_add (set, elt);
  65   if (result < 0)
  66     xalloc_die ();
  67   return result;
  68 }
  69
  70 #ifdef __cplusplus
  71 }
  72 #endif
  73
  74 _GL_INLINE_HEADER_END
  75
  76 #endif /* _GL_XSET_H */