Implemented project structure

xpack-riscv-none-elf-gcc-13.4.0-1/lib/gcc/riscv-none-elf/13.4.0/plugin/include/incpath.h

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+/* Set up combined include path for the preprocessor.
+   Copyright (C) 2003-2023 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 the
+   Free Software Foundation; either version 3, 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; see the file COPYING3.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef GCC_INCPATH_H
+#define GCC_INCPATH_H
+
+/* Various fragments of include path.  */
+enum incpath_kind {
+  INC_QUOTE = 0, /* include "foo" */
+  INC_BRACKET,   /* include <foo> */
+  INC_SYSTEM,    /* sys-include */
+  INC_AFTER,	 /* post-sysinclude  */
+  INC_MAX
+};
+
+extern void split_quote_chain (void);
+extern void add_path (char *, incpath_kind, int, bool);
+extern void register_include_chains (cpp_reader *, const char *,
+				     const char *, const char *,
+				     int, int, int);
+extern void add_cpp_dir_path (struct cpp_dir *, incpath_kind);
+extern struct cpp_dir *get_added_cpp_dirs (incpath_kind);
+
+struct target_c_incpath_s {
+  /* Do extra includes processing.  STDINC is false iff -nostdinc was given.  */
+  void (*extra_pre_includes) (const char *, const char *, int);
+  void (*extra_includes) (const char *, const char *, int);
+};
+
+extern struct target_c_incpath_s target_c_incpath;
+
+#endif /* GCC_INCPATH_H */