lib/gl_xset.h

   1 /* Abstract set data type, with out-of-memory checking.
   2    Copyright (C) 2009-2024 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 /* This file uses _GL_INLINE_HEADER_BEGIN, _GL_INLINE,
  22    _GL_ATTRIBUTE_RETURNS_NONNULL.  */
  23 #if !_GL_CONFIG_H_INCLUDED
  24  #error "Please include config.h first."
  25 #endif
  26
  27 #include "gl_set.h"
  28 #include "xalloc.h"
  29
  30 _GL_INLINE_HEADER_BEGIN
  31 #ifndef GL_XSET_INLINE
  32 # define GL_XSET_INLINE _GL_INLINE
  33 #endif
  34
  35
  36 #ifdef __cplusplus
  37 extern "C" {
  38 #endif
  39
  40 /* These functions are thin wrappers around the corresponding functions with
  41    _nx_ infix from gl_set.h.  Upon out-of-memory, they invoke xalloc_die (),
  42    instead of returning an error indicator.  */
  43 #if 0 /* These are defined inline below.  */
  44 extern gl_set_t gl_set_create_empty (gl_set_implementation_t implementation,
  45                                      gl_setelement_equals_fn equals_fn,
  46                                      gl_setelement_hashcode_fn hashcode_fn,
  47                                      gl_setelement_dispose_fn dispose_fn)
  48   /*_GL_ATTRIBUTE_DEALLOC (gl_set_free, 1)*/
  49   _GL_ATTRIBUTE_RETURNS_NONNULL;
  50 extern bool gl_set_add (gl_set_t set, const void *elt);
  51 #endif
  52
  53 GL_XSET_INLINE
  54 /*_GL_ATTRIBUTE_DEALLOC (gl_set_free, 1)*/
  55 _GL_ATTRIBUTE_RETURNS_NONNULL
  56 gl_set_t
  57 gl_set_create_empty (gl_set_implementation_t implementation,
  58                      gl_setelement_equals_fn equals_fn,
  59                      gl_setelement_hashcode_fn hashcode_fn,
  60                      gl_setelement_dispose_fn dispose_fn)
  61 {
  62   gl_set_t result =
  63     gl_set_nx_create_empty (implementation, equals_fn, hashcode_fn, dispose_fn);
  64   if (result == NULL)
  65     xalloc_die ();
  66   return result;
  67 }
  68
  69 GL_XSET_INLINE bool
  70 gl_set_add (gl_set_t set, const void *elt)
  71 {
  72   int result = gl_set_nx_add (set, elt);
  73   if (result < 0)
  74     xalloc_die ();
  75   return result;
  76 }
  77
  78 #ifdef __cplusplus
  79 }
  80 #endif
  81
  82 _GL_INLINE_HEADER_END
  83
  84 #endif /* _GL_XSET_H */