/* A GNU-like <search.h>.
- Copyright (C) 2007-2008 Free Software Foundation, Inc.
+ Copyright (C) 2007-2013 Free Software Foundation, Inc.
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
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 _GL_SEARCH_H
+#ifndef _@GUARD_PREFIX@_SEARCH_H
+
+#if __GNUC__ >= 3
+@PRAGMA_SYSTEM_HEADER@
+#endif
+@PRAGMA_COLUMNS@
/* The include_next requires a split double-inclusion guard. */
#if @HAVE_SEARCH_H@
# @INCLUDE_NEXT@ @NEXT_SEARCH_H@
#endif
-#ifndef _GL_SEARCH_H
-#define _GL_SEARCH_H
+#ifndef _@GUARD_PREFIX@_SEARCH_H
+#define _@GUARD_PREFIX@_SEARCH_H
-/* The definition of GL_LINK_WARNING is copied here. */
+/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
+/* The definition of _GL_ARG_NONNULL is copied here. */
-#ifdef __cplusplus
-extern "C" {
-#endif
+/* The definition of _GL_WARN_ON_USE is copied here. */
#if @GNULIB_TSEARCH@
# if @REPLACE_TSEARCH@
-# define tsearch rpl_tsearch
-# define tfind rpl_tfind
-# define tdelete rpl_tdelete
-# define twalk rpl_twalk
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define tsearch rpl_tsearch
+# define tfind rpl_tfind
+# define tdelete rpl_tdelete
+# define twalk rpl_twalk
+# endif
# endif
-# if !@HAVE_TSEARCH@ || @REPLACE_TSEARCH@
/* See <http://www.opengroup.org/susv3xbd/search.h.html>,
<http://www.opengroup.org/susv3xsh/tsearch.html>
for details. */
-# if !@HAVE_TSEARCH@
+# if !@HAVE_TSEARCH@
+# if !GNULIB_defined_search_types
typedef enum
{
preorder,
leaf
}
VISIT;
+# define GNULIB_defined_search_types 1
# endif
+# endif
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+# if !GNULIB_defined_search_fn_types
+typedef int (*_gl_search_compar_fn) (const void *, const void *);
+typedef void (*_gl_search_action_fn) (const void *, VISIT, int);
+# define GNULIB_defined_search_fn_types 1
+# endif
+# ifdef __cplusplus
+}
+# endif
/* Searches an element in the tree *VROOTP that compares equal to KEY.
If one is found, it is returned. Otherwise, a new element equal to KEY
is inserted in the tree and is returned. */
-extern void * tsearch (const void *key, void **vrootp,
- int (*compar) (const void *, const void *));
+# if @REPLACE_TSEARCH@
+_GL_FUNCDECL_RPL (tsearch, void *,
+ (const void *key, void **vrootp,
+ _gl_search_compar_fn compar)
+ _GL_ARG_NONNULL ((1, 2, 3)));
+_GL_CXXALIAS_RPL (tsearch, void *,
+ (const void *key, void **vrootp,
+ _gl_search_compar_fn compar));
+# else
+# if !@HAVE_TSEARCH@
+_GL_FUNCDECL_SYS (tsearch, void *,
+ (const void *key, void **vrootp,
+ _gl_search_compar_fn compar)
+ _GL_ARG_NONNULL ((1, 2, 3)));
+# endif
+_GL_CXXALIAS_SYS (tsearch, void *,
+ (const void *key, void **vrootp,
+ _gl_search_compar_fn compar));
+# endif
+_GL_CXXALIASWARN (tsearch);
/* Searches an element in the tree *VROOTP that compares equal to KEY.
If one is found, it is returned. Otherwise, NULL is returned. */
-extern void * tfind (const void *key, void *const *vrootp,
- int (*compar) (const void *, const void *));
+# if @REPLACE_TSEARCH@
+_GL_FUNCDECL_RPL (tfind, void *,
+ (const void *key, void *const *vrootp,
+ _gl_search_compar_fn compar)
+ _GL_ARG_NONNULL ((1, 2, 3)));
+_GL_CXXALIAS_RPL (tfind, void *,
+ (const void *key, void *const *vrootp,
+ _gl_search_compar_fn compar));
+# else
+# if !@HAVE_TSEARCH@
+_GL_FUNCDECL_SYS (tfind, void *,
+ (const void *key, void *const *vrootp,
+ _gl_search_compar_fn compar)
+ _GL_ARG_NONNULL ((1, 2, 3)));
+# endif
+/* Need to cast, because on Cygwin 1.5.x systems, the second parameter is
+ void **vrootp. */
+_GL_CXXALIAS_SYS_CAST (tfind, void *,
+ (const void *key, void *const *vrootp,
+ _gl_search_compar_fn compar));
+# endif
+_GL_CXXALIASWARN (tfind);
/* Searches an element in the tree *VROOTP that compares equal to KEY.
If one is found, it is removed from the tree, and its parent node is
returned. Otherwise, NULL is returned. */
-extern void * tdelete (const void *key, void **vrootp,
- int (*compar) (const void *, const void *));
+# if @REPLACE_TSEARCH@
+_GL_FUNCDECL_RPL (tdelete, void *,
+ (const void *key, void **vrootp,
+ _gl_search_compar_fn compar)
+ _GL_ARG_NONNULL ((1, 2, 3)));
+_GL_CXXALIAS_RPL (tdelete, void *,
+ (const void *key, void **vrootp,
+ _gl_search_compar_fn compar));
+# else
+# if !@HAVE_TSEARCH@
+_GL_FUNCDECL_SYS (tdelete, void *,
+ (const void *key, void **vrootp,
+ _gl_search_compar_fn compar)
+ _GL_ARG_NONNULL ((1, 2, 3)));
+# endif
+_GL_CXXALIAS_SYS (tdelete, void *,
+ (const void *key, void **vrootp,
+ _gl_search_compar_fn compar));
+# endif
+_GL_CXXALIASWARN (tdelete);
/* Perform a depth-first, left-to-right traversal of the tree VROOT.
The ACTION function is called:
and after the right subtree traversal,
- for leaf nodes: once.
The arguments passed to ACTION are:
- 1. the node; it can be casted to a 'const void * const *', i.e. into a
+ 1. the node; it can be cast to a 'const void * const *', i.e. into a
pointer to the key,
2. an indicator which visit of the node this is,
3. the level of the node in the tree (0 for the root). */
-extern void twalk (const void *vroot,
- void (*action) (const void *, VISIT, int));
-
+# if @REPLACE_TSEARCH@
+_GL_FUNCDECL_RPL (twalk, void,
+ (const void *vroot, _gl_search_action_fn action)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (twalk, void,
+ (const void *vroot, _gl_search_action_fn action));
+# else
+# if !@HAVE_TSEARCH@
+_GL_FUNCDECL_SYS (twalk, void,
+ (const void *vroot, _gl_search_action_fn action)
+ _GL_ARG_NONNULL ((2)));
+# endif
+_GL_CXXALIAS_SYS (twalk, void,
+ (const void *vroot, _gl_search_action_fn action));
# endif
+_GL_CXXALIASWARN (twalk);
+
#elif defined GNULIB_POSIXCHECK
# undef tsearch
-# define tsearch(k,v,c) \
- (GL_LINK_WARNING ("tsearch is unportable - " \
- "use gnulib module tsearch for portability"), \
- tsearch (k, v, c))
+# if HAVE_RAW_DECL_TSEARCH
+_GL_WARN_ON_USE (tsearch, "tsearch is unportable - "
+ "use gnulib module tsearch for portability");
+# endif
# undef tfind
-# define tfind(k,v,c) \
- (GL_LINK_WARNING ("tfind is unportable - " \
- "use gnulib module tsearch for portability"), \
- tfind (k, v, c))
+# if HAVE_RAW_DECL_TFIND
+_GL_WARN_ON_USE (tfind, "tfind is unportable - "
+ "use gnulib module tsearch for portability");
+# endif
# undef tdelete
-# define tdelete(k,v,c) \
- (GL_LINK_WARNING ("tdelete is unportable - " \
- "use gnulib module tsearch for portability"), \
- tdelete (k, v, c))
+# if HAVE_RAW_DECL_TDELETE
+_GL_WARN_ON_USE (tdelete, "tdelete is unportable - "
+ "use gnulib module tsearch for portability");
+# endif
# undef twalk
-# define twalk(v,a) \
- (GL_LINK_WARNING ("twalk is unportable - " \
- "use gnulib module tsearch for portability"), \
- twalk (v, a))
+# if HAVE_RAW_DECL_TWALK
+_GL_WARN_ON_USE (twalk, "twalk is unportable - "
+ "use gnulib module tsearch for portability");
+# endif
#endif
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _GL_SEARCH_H */
-#endif /* _GL_SEARCH_H */
+#endif /* _@GUARD_PREFIX@_SEARCH_H */
+#endif /* _@GUARD_PREFIX@_SEARCH_H */
projects / gnulib.git / blobdiff