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-rw-r--r--gl/lib/gl_xset.h81
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diff --git a/gl/lib/gl_xset.h b/gl/lib/gl_xset.h
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+/* Abstract set data type, with out-of-memory checking.
+ Copyright (C) 2009-2022 Free Software Foundation, Inc.
+ Written by Bruno Haible <bruno@clisp.org>, 2009.
+
+ 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 <https://www.gnu.org/licenses/>. */
+
+#ifndef _GL_XSET_H
+#define _GL_XSET_H
+
+#include "gl_set.h"
+#include "xalloc.h"
+
+#ifndef _GL_INLINE_HEADER_BEGIN
+ #error "Please include config.h first."
+#endif
+_GL_INLINE_HEADER_BEGIN
+#ifndef GL_XSET_INLINE
+# define GL_XSET_INLINE _GL_INLINE
+#endif
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* These functions are thin wrappers around the corresponding functions with
+ _nx_ infix from gl_set.h. Upon out-of-memory, they invoke xalloc_die (),
+ instead of returning an error indicator. */
+#if 0 /* These are defined inline below. */
+extern gl_set_t gl_set_create_empty (gl_set_implementation_t implementation,
+ gl_setelement_equals_fn equals_fn,
+ gl_setelement_hashcode_fn hashcode_fn,
+ gl_setelement_dispose_fn dispose_fn)
+ /*_GL_ATTRIBUTE_DEALLOC (gl_set_free, 1)*/
+ _GL_ATTRIBUTE_RETURNS_NONNULL;
+extern bool gl_set_add (gl_set_t set, const void *elt);
+#endif
+
+GL_XSET_INLINE
+/*_GL_ATTRIBUTE_DEALLOC (gl_set_free, 1)*/
+_GL_ATTRIBUTE_RETURNS_NONNULL
+gl_set_t
+gl_set_create_empty (gl_set_implementation_t implementation,
+ gl_setelement_equals_fn equals_fn,
+ gl_setelement_hashcode_fn hashcode_fn,
+ gl_setelement_dispose_fn dispose_fn)
+{
+ gl_set_t result =
+ gl_set_nx_create_empty (implementation, equals_fn, hashcode_fn, dispose_fn);
+ if (result == NULL)
+ xalloc_die ();
+ return result;
+}
+
+GL_XSET_INLINE bool
+gl_set_add (gl_set_t set, const void *elt)
+{
+ int result = gl_set_nx_add (set, elt);
+ if (result < 0)
+ xalloc_die ();
+ return result;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+_GL_INLINE_HEADER_END
+
+#endif /* _GL_XSET_H */