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iwyu_include_picker.cc
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iwyu_include_picker.cc
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//===--- iwyu_include_picker.cc - map to canonical #includes for iwyu -----===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "iwyu_include_picker.h"
#include <algorithm> // for find
#include <cstddef> // for size_t
// TODO(wan): make sure IWYU doesn't suggest <iterator>.
#include <iterator> // for find
// not hash_map: it's not as portable and needs hash<string>.
#include <map> // for map, map<>::mapped_type, etc
#include <memory>
#include <string> // for string, basic_string, etc
#include <system_error> // for error_code
#include <utility> // for pair, make_pair
#include <vector> // for vector, vector<>::iterator
#include "iwyu_location_util.h"
#include "iwyu_path_util.h"
#include "iwyu_port.h"
#include "iwyu_regex.h"
#include "iwyu_stl_util.h"
#include "iwyu_string_util.h"
#include "iwyu_verrs.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/ErrorOr.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/YAMLParser.h"
#include "clang/Basic/FileManager.h"
using std::find;
using std::make_pair;
using std::map;
using std::pair;
using std::string;
using std::unique_ptr;
using std::vector;
using llvm::MemoryBuffer;
using llvm::SourceMgr;
using llvm::yaml::KeyValueNode;
using llvm::yaml::MappingNode;
using llvm::yaml::Node;
using llvm::yaml::ScalarNode;
using llvm::yaml::SequenceNode;
using llvm::yaml::Stream;
using llvm::yaml::document_iterator;
namespace include_what_you_use {
// If we map from A to B, it means that every time we need a
// symbol from A, we can also get it from B. Another way
// to think about it is that map_to "re-exports" all the
// symbols from map_from.
struct IncludeMapEntry { // A POD so we can make the input static
const char* map_from; // A quoted-include or a symbol name
IncludeVisibility from_visibility;
const char* map_to; // A quoted-include
IncludeVisibility to_visibility;
};
namespace {
// Listed below are all IWYU's native symbol and include mappings,
// loosely based on GCC 4.4's libc and libstdc++.
// Symbol -> include mappings for GNU libc
const IncludeMapEntry libc_symbol_map[] = {
// For library symbols that can be defined in more than one header
// file, maps from symbol-name to legitimate header files.
// This list was generated via
// grep -R '__.*_defined' /usr/include | perl -nle 'm,/usr/include/([^:]*):#\s*\S+ __(.*)_defined, and print qq@ { "$2", kPublic, "<$1>", kPublic },@' | sort -u
// I ignored all entries that only appeared once on the list (eg uint32_t).
// I then added in NULL, which according to [diff.null] C.2.2.3, can
// be defined in <clocale>, <cstddef>, <cstdio>, <cstdlib>,
// <cstring>, <ctime>, or <cwchar>. We also allow their C
// equivalents.
// In each case, I ordered them so <sys/types.h> was first, if it was
// an option for this type. That's the preferred #include all else
// equal. The visibility on the symbol-name is ignored; by convention
// we always set it to kPrivate.
{ "aiocb", kPrivate, "<aio.h>", kPublic },
{ "blkcnt_t", kPrivate, "<sys/types.h>", kPublic },
{ "blkcnt_t", kPrivate, "<sys/stat.h>", kPublic },
{ "blksize_t", kPrivate, "<sys/types.h>", kPublic },
{ "blksize_t", kPrivate, "<sys/stat.h>", kPublic },
{ "cc_t", kPrivate, "<termios.h>", kPublic },
{ "clock_t", kPrivate, "<sys/types.h>", kPublic },
{ "clock_t", kPrivate, "<sys/time.h>", kPublic },
{ "clock_t", kPrivate, "<time.h>", kPublic },
{ "clockid_t", kPrivate, "<sys/types.h>", kPublic },
{ "clockid_t", kPrivate, "<time.h>", kPublic },
{ "daddr_t", kPrivate, "<sys/types.h>", kPublic },
{ "daddr_t", kPrivate, "<rpc/types.h>", kPublic },
{ "dev_t", kPrivate, "<sys/types.h>", kPublic },
{ "dev_t", kPrivate, "<sys/stat.h>", kPublic },
{ "div_t", kPrivate, "<stdlib.h>", kPublic },
{ "double_t", kPrivate, "<math.h>", kPublic },
{ "error_t", kPrivate, "<errno.h>", kPublic },
{ "error_t", kPrivate, "<argp.h>", kPublic },
{ "error_t", kPrivate, "<argz.h>", kPublic },
{ "fd_set", kPrivate, "<sys/select.h>", kPublic },
{ "fd_set", kPrivate, "<sys/time.h>", kPublic },
{ "fenv_t", kPrivate, "<fenv.h>", kPublic },
{ "fexcept_t", kPrivate, "<fenv.h>", kPublic },
{ "FILE", kPrivate, "<stdio.h>", kPublic },
{ "FILE", kPrivate, "<wchar.h>", kPublic },
{ "float_t", kPrivate, "<math.h>", kPublic },
{ "fsblkcnt_t", kPrivate, "<sys/types.h>", kPublic },
{ "fsblkcnt_t", kPrivate, "<sys/statvfs.h>", kPublic },
{ "fsfilcnt_t", kPrivate, "<sys/types.h>", kPublic },
{ "fsfilcnt_t", kPrivate, "<sys/statvfs.h>", kPublic },
{ "getopt", kPrivate, "<unistd.h>", kPublic },
{ "gid_t", kPrivate, "<sys/types.h>", kPublic },
{ "gid_t", kPrivate, "<grp.h>", kPublic },
{ "gid_t", kPrivate, "<pwd.h>", kPublic },
{ "gid_t", kPrivate, "<signal.h>", kPublic },
{ "gid_t", kPrivate, "<stropts.h>", kPublic },
{ "gid_t", kPrivate, "<sys/ipc.h>", kPublic },
{ "gid_t", kPrivate, "<sys/stat.h>", kPublic },
{ "gid_t", kPrivate, "<unistd.h>", kPublic },
{ "htonl", kPrivate, "<arpa/inet.h>", kPublic },
{ "htons", kPrivate, "<arpa/inet.h>", kPublic },
{ "id_t", kPrivate, "<sys/types.h>", kPublic },
{ "id_t", kPrivate, "<sys/resource.h>", kPublic },
{ "imaxdiv_t", kPrivate, "<inttypes.h>", kPublic },
{ "intmax_t", kPrivate, "<stdint.h>", kPublic },
{ "uintmax_t", kPrivate, "<stdint.h>", kPublic },
{ "ino64_t", kPrivate, "<sys/types.h>", kPublic },
{ "ino64_t", kPrivate, "<dirent.h>", kPublic },
{ "ino_t", kPrivate, "<sys/types.h>", kPublic },
{ "ino_t", kPrivate, "<dirent.h>", kPublic },
{ "ino_t", kPrivate, "<sys/stat.h>", kPublic },
{ "int8_t", kPrivate, "<stdint.h>", kPublic },
{ "int16_t", kPrivate, "<stdint.h>", kPublic },
{ "int32_t", kPrivate, "<stdint.h>", kPublic },
{ "int64_t", kPrivate, "<stdint.h>", kPublic },
{ "uint8_t", kPrivate, "<stdint.h>", kPublic },
{ "uint16_t", kPrivate, "<stdint.h>", kPublic },
{ "uint32_t", kPrivate, "<stdint.h>", kPublic },
{ "uint64_t", kPrivate, "<stdint.h>", kPublic },
{ "intptr_t", kPrivate, "<stdint.h>", kPublic },
{ "uintptr_t", kPrivate, "<stdint.h>", kPublic },
{ "iovec", kPrivate, "<sys/uio.h>", kPublic },
{ "iovec", kPrivate, "<sys/socket.h>", kPublic },
{ "itimerspec", kPrivate, "<time.h>", kPublic },
{ "itimerspec", kPrivate, "<sys/timerfd.h>", kPublic },
{ "key_t", kPrivate, "<sys/types.h>", kPublic },
{ "key_t", kPrivate, "<sys/ipc.h>", kPublic },
{ "lconv", kPrivate, "<locale.h>", kPublic },
{ "ldiv_t", kPrivate, "<stdlib.h>", kPublic },
{ "lldiv_t", kPrivate, "<stdlib.h>", kPublic },
{ "max_align_t", kPrivate, "<stddef.h>", kPublic },
{ "mode_t", kPrivate, "<sys/types.h>", kPublic },
{ "mode_t", kPrivate, "<fcntl.h>", kPublic },
{ "mode_t", kPrivate, "<ndbm.h>", kPublic },
{ "mode_t", kPrivate, "<spawn.h>", kPublic },
{ "mode_t", kPrivate, "<sys/ipc.h>", kPublic },
{ "mode_t", kPrivate, "<sys/mman.h>", kPublic },
{ "mode_t", kPrivate, "<sys/stat.h>", kPublic },
{ "nlink_t", kPrivate, "<sys/types.h>", kPublic },
{ "nlink_t", kPrivate, "<sys/stat.h>", kPublic },
{ "ntohl", kPrivate, "<arpa/inet.h>", kPublic },
{ "ntohs", kPrivate, "<arpa/inet.h>", kPublic },
{ "off64_t", kPrivate, "<sys/types.h>", kPublic },
{ "off64_t", kPrivate, "<unistd.h>", kPublic },
{ "off_t", kPrivate, "<sys/types.h>", kPublic },
{ "off_t", kPrivate, "<aio.h>", kPublic },
{ "off_t", kPrivate, "<fcntl.h>", kPublic },
{ "off_t", kPrivate, "<stdio.h>", kPublic },
{ "off_t", kPrivate, "<sys/mman.h>", kPublic },
{ "off_t", kPrivate, "<sys/stat.h>", kPublic },
{ "off_t", kPrivate, "<unistd.h>", kPublic },
{ "optarg", kPrivate, "<unistd.h>", kPublic },
{ "opterr", kPrivate, "<unistd.h>", kPublic },
{ "optind", kPrivate, "<unistd.h>", kPublic },
{ "optopt", kPrivate, "<unistd.h>", kPublic },
{ "pid_t", kPrivate, "<sys/types.h>", kPublic },
{ "pid_t", kPrivate, "<fcntl.h>", kPublic },
{ "pid_t", kPrivate, "<sched.h>", kPublic },
{ "pid_t", kPrivate, "<signal.h>", kPublic },
{ "pid_t", kPrivate, "<spawn.h>", kPublic },
{ "pid_t", kPrivate, "<sys/msg.h>", kPublic },
{ "pid_t", kPrivate, "<sys/sem.h>", kPublic },
{ "pid_t", kPrivate, "<sys/shm.h>", kPublic },
{ "pid_t", kPrivate, "<sys/wait.h>", kPublic },
{ "pid_t", kPrivate, "<termios.h>", kPublic },
{ "pid_t", kPrivate, "<time.h>", kPublic },
{ "pid_t", kPrivate, "<unistd.h>", kPublic },
{ "pid_t", kPrivate, "<utmpx.h>", kPublic },
{ "ptrdiff_t", kPrivate, "<stddef.h>", kPublic },
{ "regex_t", kPrivate, "<regex.h>", kPublic },
{ "regmatch_t", kPrivate, "<regex.h>", kPublic },
{ "regoff_t", kPrivate, "<regex.h>", kPublic },
{ "sigevent", kPrivate, "<signal.h>", kPublic },
{ "sigevent", kPrivate, "<aio.h>", kPublic },
{ "sigevent", kPrivate, "<mqueue.h>", kPublic },
{ "sigevent", kPrivate, "<time.h>", kPublic },
{ "siginfo_t", kPrivate, "<signal.h>", kPublic },
{ "siginfo_t", kPrivate, "<sys/wait.h>", kPublic },
{ "sigset_t", kPrivate, "<signal.h>", kPublic },
{ "sigset_t", kPrivate, "<spawn.h>", kPublic },
{ "sigset_t", kPrivate, "<sys/select.h>", kPublic },
{ "sigval", kPrivate, "<signal.h>", kPublic },
{ "sockaddr", kPrivate, "<sys/socket.h>", kPublic },
{ "socklen_t", kPrivate, "<sys/socket.h>", kPublic },
{ "socklen_t", kPrivate, "<netdb.h>", kPublic },
{ "ssize_t", kPrivate, "<sys/types.h>", kPublic },
{ "ssize_t", kPrivate, "<aio.h>", kPublic },
{ "ssize_t", kPrivate, "<monetary.h>", kPublic },
{ "ssize_t", kPrivate, "<mqueue.h>", kPublic },
{ "ssize_t", kPrivate, "<stdio.h>", kPublic },
{ "ssize_t", kPrivate, "<sys/msg.h>", kPublic },
{ "ssize_t", kPrivate, "<sys/socket.h>", kPublic },
{ "ssize_t", kPrivate, "<sys/uio.h>", kPublic },
{ "ssize_t", kPrivate, "<unistd.h>", kPublic },
{ "stat", kPrivate, "<sys/stat.h>", kPublic },
{ "stat", kPrivate, "<ftw.h>", kPublic },
{ "suseconds_t", kPrivate, "<sys/types.h>", kPublic },
{ "suseconds_t", kPrivate, "<sys/select.h>", kPublic },
{ "suseconds_t", kPrivate, "<sys/time.h>", kPublic },
{ "time_t", kPrivate, "<time.h>", kPublic },
{ "time_t", kPrivate, "<sched.h>", kPublic },
{ "time_t", kPrivate, "<sys/msg.h>", kPublic },
{ "time_t", kPrivate, "<sys/select.h>", kPublic },
{ "time_t", kPrivate, "<sys/sem.h>", kPublic },
{ "time_t", kPrivate, "<sys/shm.h>", kPublic },
{ "time_t", kPrivate, "<sys/stat.h>", kPublic },
{ "time_t", kPrivate, "<sys/time.h>", kPublic },
{ "time_t", kPrivate, "<sys/types.h>", kPublic },
{ "time_t", kPrivate, "<utime.h>", kPublic },
{ "timer_t", kPrivate, "<sys/types.h>", kPublic },
{ "timer_t", kPrivate, "<time.h>", kPublic },
{ "timespec", kPrivate, "<time.h>", kPublic },
{ "timespec", kPrivate, "<aio.h>", kPublic },
{ "timespec", kPrivate, "<mqueue.h>", kPublic },
{ "timespec", kPrivate, "<sched.h>", kPublic },
{ "timespec", kPrivate, "<signal.h>", kPublic },
{ "timespec", kPrivate, "<sys/select.h>", kPublic },
{ "timespec", kPrivate, "<sys/stat.h>", kPublic },
{ "timeval", kPrivate, "<sys/time.h>", kPublic },
{ "timeval", kPrivate, "<sys/resource.h>", kPublic },
{ "timeval", kPrivate, "<sys/select.h>", kPublic },
{ "timeval", kPrivate, "<utmpx.h>", kPublic },
{ "tm", kPrivate, "<time.h>", kPublic },
{ "u_char", kPrivate, "<sys/types.h>", kPublic },
{ "u_char", kPrivate, "<rpc/types.h>", kPublic },
{ "uid_t", kPrivate, "<sys/types.h>", kPublic },
{ "uid_t", kPrivate, "<pwd.h>", kPublic },
{ "uid_t", kPrivate, "<signal.h>", kPublic },
{ "uid_t", kPrivate, "<stropts.h>", kPublic },
{ "uid_t", kPrivate, "<sys/ipc.h>", kPublic },
{ "uid_t", kPrivate, "<sys/stat.h>", kPublic },
{ "uid_t", kPrivate, "<unistd.h>", kPublic },
{ "useconds_t", kPrivate, "<sys/types.h>", kPublic },
{ "useconds_t", kPrivate, "<unistd.h>", kPublic },
{ "wchar_t", kPrivate, "<stddef.h>", kPublic },
{ "wchar_t", kPrivate, "<stdlib.h>", kPublic },
// It is unspecified if the cname headers provide ::size_t.
// <locale.h> is the one header which defines NULL but not size_t.
{ "size_t", kPrivate, "<stddef.h>", kPublic }, // 'canonical' location for size_t
{ "size_t", kPrivate, "<aio.h>", kPublic },
{ "size_t", kPrivate, "<glob.h>", kPublic },
{ "size_t", kPrivate, "<grp.h>", kPublic },
{ "size_t", kPrivate, "<iconv.h>", kPublic },
{ "size_t", kPrivate, "<monetary.h>", kPublic },
{ "size_t", kPrivate, "<mqueue.h>", kPublic },
{ "size_t", kPrivate, "<ndbm.h>", kPublic },
{ "size_t", kPrivate, "<pwd.h>", kPublic },
{ "size_t", kPrivate, "<regex.h>", kPublic },
{ "size_t", kPrivate, "<search.h>", kPublic },
{ "size_t", kPrivate, "<signal.h>", kPublic },
{ "size_t", kPrivate, "<stdio.h>", kPublic },
{ "size_t", kPrivate, "<stdlib.h>", kPublic },
{ "size_t", kPrivate, "<string.h>", kPublic },
{ "size_t", kPrivate, "<strings.h>", kPublic },
{ "size_t", kPrivate, "<sys/mman.h>", kPublic },
{ "size_t", kPrivate, "<sys/msg.h>", kPublic },
{ "size_t", kPrivate, "<sys/sem.h>", kPublic },
{ "size_t", kPrivate, "<sys/shm.h>", kPublic },
{ "size_t", kPrivate, "<sys/socket.h>", kPublic },
{ "size_t", kPrivate, "<sys/types.h>", kPublic },
{ "size_t", kPrivate, "<sys/uio.h>", kPublic },
{ "size_t", kPrivate, "<time.h>", kPublic },
{ "size_t", kPrivate, "<uchar.h>", kPublic },
{ "size_t", kPrivate, "<unistd.h>", kPublic },
{ "size_t", kPrivate, "<wchar.h>", kPublic },
{ "size_t", kPrivate, "<wordexp.h>", kPublic },
// Macros that can be defined in more than one file, don't have the
// same __foo_defined guard that other types do, so the grep above
// doesn't discover them. Until I figure out a better way, I just
// add them in by hand as I discover them.
{ "EOF", kPrivate, "<stdio.h>", kPublic },
{ "EOF", kPrivate, "<libio.h>", kPublic },
{ "FILE", kPrivate, "<stdio.h>", kPublic },
{ "MAP_POPULATE", kPrivate, "<sys/mman.h>", kPublic },
{ "MAP_POPULATE", kPrivate, "<linux/mman.h>", kPublic },
{ "MAP_STACK", kPrivate, "<sys/mman.h>", kPublic },
{ "MAP_STACK", kPrivate, "<linux/mman.h>", kPublic },
{ "MAXHOSTNAMELEN", kPrivate, "<sys/param.h>", kPublic },
{ "MAXHOSTNAMELEN", kPrivate, "<protocols/timed.h>", kPublic },
{ "SIGABRT", kPrivate, "<signal.h>", kPublic },
{ "SIGCHLD", kPrivate, "<signal.h>", kPublic },
{ "SIGCHLD", kPrivate, "<linux/signal.h>", kPublic },
{ "va_list", kPrivate, "<stdarg.h>", kPublic },
{ "va_list", kPrivate, "<stdio.h>", kPublic },
{ "va_list", kPrivate, "<wchar.h>", kPublic },
// These are symbols that could be defined in either stdlib.h or
// malloc.h, but we always want the stdlib location.
{ "malloc", kPrivate, "<stdlib.h>", kPublic },
{ "calloc", kPrivate, "<stdlib.h>", kPublic },
{ "realloc", kPrivate, "<stdlib.h>", kPublic },
{ "free", kPrivate, "<stdlib.h>", kPublic },
// Entries for NULL
{ "NULL", kPrivate, "<stddef.h>", kPublic }, // 'canonical' location for NULL
{ "NULL", kPrivate, "<clocale>", kPublic },
{ "NULL", kPrivate, "<cstddef>", kPublic },
{ "NULL", kPrivate, "<cstdio>", kPublic },
{ "NULL", kPrivate, "<cstdlib>", kPublic },
{ "NULL", kPrivate, "<cstring>", kPublic },
{ "NULL", kPrivate, "<ctime>", kPublic },
{ "NULL", kPrivate, "<cwchar>", kPublic },
{ "NULL", kPrivate, "<locale.h>", kPublic },
{ "NULL", kPrivate, "<stdio.h>", kPublic },
{ "NULL", kPrivate, "<stdlib.h>", kPublic },
{ "NULL", kPrivate, "<string.h>", kPublic },
{ "NULL", kPrivate, "<time.h>", kPublic },
{ "NULL", kPrivate, "<unistd.h>", kPublic },
{ "NULL", kPrivate, "<wchar.h>", kPublic },
};
// Symbol -> include mappings for GNU libstdc++
const IncludeMapEntry libstdcpp_symbol_map[] = {
// Kludge time: almost all STL types take an allocator, but they
// almost always use the default value. Usually we detect that
// and don't try to do IWYU, but sometimes it passes through.
// For instance, when adding two strings, we end up calling
// template<_CharT,_Traits,_Alloc> ... operator+(
// basic_string<_CharT,_Traits,_Alloc>, ...)
// These look like normal template args to us, so we see they're
// used and declare an iwyu dependency, even though we don't need
// to #include the traits or alloc type ourselves. The surest way
// to deal with this is to just say that everyone provides
// std::allocator. We can add more here at need.
{ "std::allocator", kPrivate, "<memory>", kPublic },
{ "std::allocator", kPrivate, "<string>", kPublic },
{ "std::allocator", kPrivate, "<vector>", kPublic },
{ "std::allocator", kPrivate, "<map>", kPublic },
{ "std::allocator", kPrivate, "<set>", kPublic },
// A similar kludge for std::char_traits. basic_string,
// basic_ostream and basic_istream have this as a default template
// argument, and sometimes it bleeds through when clang desugars the
// string/ostream/istream type.
{ "std::char_traits", kPrivate, "<string>", kPublic },
{ "std::char_traits", kPrivate, "<ostream>", kPublic },
{ "std::char_traits", kPrivate, "<istream>", kPublic },
{ "std::size_t", kPrivate, "<cstddef>", kPublic }, // 'canonical' location for std::size_t
{ "std::size_t", kPrivate, "<cstdio>", kPublic },
{ "std::size_t", kPrivate, "<cstdlib>", kPublic },
{ "std::size_t", kPrivate, "<cstring>", kPublic },
{ "std::size_t", kPrivate, "<ctime>", kPublic },
{ "std::size_t", kPrivate, "<cuchar>", kPublic },
{ "std::size_t", kPrivate, "<cwchar>", kPublic },
};
const IncludeMapEntry libc_include_map[] = {
// Private -> public include mappings for GNU libc
// ( cd /usr/include && grep '^ *# *include' {sys/,net/,}* | perl -nle 'm/^([^:]+).*<([^>]+)>/ && print qq@ { "<$2>", kPrivate, "<$1>", kPublic },@' | grep bits/ | sort )
// When I saw more than one mapping for these, I typically picked
// what I thought was the "best" one.
{ "<bits/a.out.h>", kPrivate, "<a.out.h>", kPublic },
{ "<bits/auxv.h>", kPrivate, "<sys/auxv.h>", kPublic },
{ "<bits/byteswap.h>", kPrivate, "<byteswap.h>", kPublic },
{ "<bits/cmathcalls.h>", kPrivate, "<complex.h>", kPublic },
{ "<bits/confname.h>", kPrivate, "<unistd.h>", kPublic },
{ "<bits/dirent.h>", kPrivate, "<dirent.h>", kPublic },
{ "<bits/dlfcn.h>", kPrivate, "<dlfcn.h>", kPublic },
{ "<bits/elfclass.h>", kPrivate, "<link.h>", kPublic },
{ "<bits/endian.h>", kPrivate, "<endian.h>", kPublic },
{ "<bits/environments.h>", kPrivate, "<unistd.h>", kPublic },
{ "<bits/epoll.h>", kPrivate, "<sys/epoll.h>", kPublic },
{ "<bits/errno.h>", kPrivate, "<errno.h>", kPublic },
{ "<bits/error.h>", kPrivate, "<error.h>", kPublic },
{ "<bits/eventfd.h>", kPrivate, "<sys/eventfd.h>", kPublic },
{ "<bits/fcntl.h>", kPrivate, "<fcntl.h>", kPublic },
{ "<bits/fcntl2.h>", kPrivate, "<fcntl.h>", kPublic },
{ "<bits/fenv.h>", kPrivate, "<fenv.h>", kPublic },
{ "<bits/fenvinline.h>", kPrivate, "<fenv.h>", kPublic },
{ "<bits/huge_val.h>", kPrivate, "<math.h>", kPublic },
{ "<bits/huge_valf.h>", kPrivate, "<math.h>", kPublic },
{ "<bits/huge_vall.h>", kPrivate, "<math.h>", kPublic },
{ "<bits/hwcap.h>", kPrivate, "<sys/auxv.h>", kPublic },
{ "<bits/inf.h>", kPrivate, "<math.h>", kPublic },
{ "<bits/inotify.h>", kPrivate, "<sys/inotify.h>", kPublic },
{ "<bits/ioctl-types.h>", kPrivate, "<sys/ioctl.h>", kPublic },
{ "<bits/ioctls.h>", kPrivate, "<sys/ioctl.h>", kPublic },
{ "<bits/ipc.h>", kPrivate, "<sys/ipc.h>", kPublic },
{ "<bits/ipctypes.h>", kPrivate, "<sys/ipc.h>", kPublic },
{ "<bits/libio-ldbl.h>", kPrivate, "<libio.h>", kPublic },
{ "<bits/link.h>", kPrivate, "<link.h>", kPublic },
{ "<bits/locale.h>", kPrivate, "<locale.h>", kPublic },
{ "<bits/math-finite.h>", kPrivate, "<math.h>", kPublic },
{ "<bits/mathcalls.h>", kPrivate, "<math.h>", kPublic },
{ "<bits/mathdef.h>", kPrivate, "<math.h>", kPublic },
{ "<bits/mathinline.h>", kPrivate, "<math.h>", kPublic },
{ "<bits/mman.h>", kPrivate, "<sys/mman.h>", kPublic },
{ "<bits/mman-shared.h>", kPrivate, "<sys/mman.h>", kPublic },
{ "<bits/monetary-ldbl.h>", kPrivate, "<monetary.h>", kPublic },
{ "<bits/mqueue.h>", kPrivate, "<mqueue.h>", kPublic },
{ "<bits/mqueue2.h>", kPrivate, "<mqueue.h>", kPublic },
{ "<bits/msq.h>", kPrivate, "<sys/msg.h>", kPublic },
{ "<bits/nan.h>", kPrivate, "<math.h>", kPublic },
{ "<bits/netdb.h>", kPrivate, "<netdb.h>", kPublic },
{ "<bits/param.h>", kPrivate, "<sys/param.h>", kPublic },
{ "<bits/poll.h>", kPrivate, "<sys/poll.h>", kPrivate },
{ "<bits/poll2.h>", kPrivate, "<sys/poll.h>", kPrivate },
{ "<bits/posix1_lim.h>", kPrivate, "<limits.h>", kPublic },
{ "<bits/posix2_lim.h>", kPrivate, "<limits.h>", kPublic },
{ "<bits/posix_opt.h>", kPrivate, "<unistd.h>", kPublic },
{ "<bits/printf-ldbl.h>", kPrivate, "<printf.h>", kPublic },
{ "<bits/pthreadtypes.h>", kPrivate, "<pthread.h>", kPublic },
{ "<bits/resource.h>", kPrivate, "<sys/resource.h>", kPublic },
{ "<bits/sched.h>", kPrivate, "<sched.h>", kPublic },
{ "<bits/select.h>", kPrivate, "<sys/select.h>", kPublic },
{ "<bits/select2.h>", kPrivate, "<sys/select.h>", kPublic },
{ "<bits/sem.h>", kPrivate, "<sys/sem.h>", kPublic },
{ "<bits/semaphore.h>", kPrivate, "<semaphore.h>", kPublic },
{ "<bits/setjmp.h>", kPrivate, "<setjmp.h>", kPublic },
{ "<bits/setjmp2.h>", kPrivate, "<setjmp.h>", kPublic },
{ "<bits/shm.h>", kPrivate, "<sys/shm.h>", kPublic },
{ "<bits/sigaction.h>", kPrivate, "<signal.h>", kPublic },
{ "<bits/sigcontext.h>", kPrivate, "<signal.h>", kPublic },
{ "<bits/siginfo.h>", kPrivate, "<signal.h>", kPublic },
{ "<bits/signum.h>", kPrivate, "<signal.h>", kPublic },
{ "<bits/sigset.h>", kPrivate, "<signal.h>", kPublic },
{ "<bits/sigstack.h>", kPrivate, "<signal.h>", kPublic },
{ "<bits/sigthread.h>", kPrivate, "<signal.h>", kPublic },
{ "<bits/sockaddr.h>", kPrivate, "<sys/un.h>", kPublic },
{ "<bits/socket.h>", kPrivate, "<sys/socket.h>", kPublic },
{ "<bits/socket2.h>", kPrivate, "<sys/socket.h>", kPublic },
{ "<bits/socket_type.h>", kPrivate, "<sys/socket.h>", kPublic },
{ "<bits/stab.def>", kPrivate, "<stab.h>", kPublic },
{ "<bits/stat.h>", kPrivate, "<sys/stat.h>", kPublic },
{ "<bits/statfs.h>", kPrivate, "<sys/statfs.h>", kPublic },
{ "<bits/statvfs.h>", kPrivate, "<sys/statvfs.h>", kPublic },
{ "<bits/stdio-ldbl.h>", kPrivate, "<stdio.h>", kPublic },
{ "<bits/stdio-lock.h>", kPrivate, "<libio.h>", kPublic },
{ "<bits/stdio.h>", kPrivate, "<stdio.h>", kPublic },
{ "<bits/stdio2.h>", kPrivate, "<stdio.h>", kPublic },
{ "<bits/stdio_lim.h>", kPrivate, "<stdio.h>", kPublic },
{ "<bits/stdlib-bsearch.h>", kPrivate, "<stdlib.h>", kPublic },
{ "<bits/stdlib-float.h>", kPrivate, "<stdlib.h>", kPublic },
{ "<bits/stdlib-ldbl.h>", kPrivate, "<stdlib.h>", kPublic },
{ "<bits/stdlib.h>", kPrivate, "<stdlib.h>", kPublic },
{ "<bits/string.h>", kPrivate, "<string.h>", kPublic },
{ "<bits/string2.h>", kPrivate, "<string.h>", kPublic },
{ "<bits/string3.h>", kPrivate, "<string.h>", kPublic },
{ "<bits/stropts.h>", kPrivate, "<stropts.h>", kPublic },
{ "<bits/struct_stat.h>", kPrivate, "<sys/stat.h>", kPublic },
{ "<bits/struct_stat.h>", kPrivate, "<ftw.h>", kPublic },
{ "<bits/sys_errlist.h>", kPrivate, "<stdio.h>", kPublic },
{ "<bits/syscall.h>", kPrivate, "<sys/syscall.h>", kPublic },
{ "<bits/sysctl.h>", kPrivate, "<sys/sysctl.h>", kPublic },
{ "<bits/syslog-ldbl.h>", kPrivate, "<sys/syslog.h>", kPrivate },
{ "<bits/syslog-path.h>", kPrivate, "<sys/syslog.h>", kPrivate },
{ "<bits/syslog.h>", kPrivate, "<sys/syslog.h>", kPrivate },
{ "<bits/termios-c_lflag.h>", kPrivate, "<termios.h>", kPublic },
{ "<bits/termios-struct.h>", kPrivate, "<termios.h>", kPublic },
{ "<bits/termios-tcflow.h>", kPrivate, "<termios.h>", kPublic },
{ "<bits/termios.h>", kPrivate, "<termios.h>", kPublic },
{ "<bits/time.h>", kPrivate, "<time.h>", kPublic },
{ "<bits/time.h>", kPrivate, "<sys/time.h>", kPublic },
{ "<bits/timerfd.h>", kPrivate, "<sys/timerfd.h>", kPublic },
{ "<bits/timex.h>", kPrivate, "<sys/timex.h>", kPublic },
{ "<bits/types.h>", kPrivate, "<sys/types.h>", kPublic },
{ "<bits/types/siginfo_t.h>", kPrivate, "<signal.h>", kPublic },
{ "<bits/types/siginfo_t.h>", kPrivate, "<sys/wait.h>", kPublic },
{ "<bits/uio.h>", kPrivate, "<sys/uio.h>", kPublic },
{ "<bits/unistd.h>", kPrivate, "<unistd.h>", kPublic },
{ "<bits/ustat.h>", kPrivate, "<sys/ustat.h>", kPrivate },
{ "<bits/utmp.h>", kPrivate, "<utmp.h>", kPublic },
{ "<bits/utmpx.h>", kPrivate, "<utmpx.h>", kPublic },
{ "<bits/utsname.h>", kPrivate, "<sys/utsname.h>", kPublic },
{ "<bits/waitflags.h>", kPrivate, "<sys/wait.h>", kPublic },
{ "<bits/waitstatus.h>", kPrivate, "<sys/wait.h>", kPublic },
{ "<bits/wchar-ldbl.h>", kPrivate, "<wchar.h>", kPublic },
{ "<bits/wchar.h>", kPrivate, "<wchar.h>", kPublic },
{ "<bits/wchar2.h>", kPrivate, "<wchar.h>", kPublic },
{ "<bits/wordsize.h>", kPrivate, "<limits.h>", kPublic },
{ "<bits/xopen_lim.h>", kPrivate, "<limits.h>", kPublic },
{ "<bits/xtitypes.h>", kPrivate, "<stropts.h>", kPublic },
// Sometimes libc tells you what mapping to do via an '#error':
// # error "Never use <bits/dlfcn.h> directly; include <dlfcn.h> instead."
// or
// # error "Never include <bits/socket_type.h> directly; use <sys/socket.h> instead."
// ( cd /usr/include && grep -R '^ *# *error "Never use\|include' * | perl -nle 'm/<([^>]+).*directly.*<([^>]+)/ && print qq@ { "<$1>", kPrivate, "<$2>", kPublic },@' | sort )
{ "<bits/a.out.h>", kPrivate, "<a.out.h>", kPublic },
{ "<bits/byteswap-16.h>", kPrivate, "<byteswap.h>", kPublic },
{ "<bits/byteswap.h>", kPrivate, "<byteswap.h>", kPublic },
{ "<bits/cmathcalls.h>", kPrivate, "<complex.h>", kPublic },
{ "<bits/confname.h>", kPrivate, "<unistd.h>", kPublic },
{ "<bits/dirent.h>", kPrivate, "<dirent.h>", kPublic },
{ "<bits/dlfcn.h>", kPrivate, "<dlfcn.h>", kPublic },
{ "<bits/elfclass.h>", kPrivate, "<link.h>", kPublic },
{ "<bits/endian.h>", kPrivate, "<endian.h>", kPublic },
{ "<bits/epoll.h>", kPrivate, "<sys/epoll.h>", kPublic },
{ "<bits/eventfd.h>", kPrivate, "<sys/eventfd.h>", kPublic },
{ "<bits/fcntl-linux.h>", kPrivate, "<fcntl.h>", kPublic },
{ "<bits/fcntl.h>", kPrivate, "<fcntl.h>", kPublic },
{ "<bits/fenv.h>", kPrivate, "<fenv.h>", kPublic },
{ "<bits/huge_val.h>", kPrivate, "<math.h>", kPublic },
{ "<bits/huge_valf.h>", kPrivate, "<math.h>", kPublic },
{ "<bits/huge_vall.h>", kPrivate, "<math.h>", kPublic },
{ "<bits/in.h>", kPrivate, "<netinet/in.h>", kPublic },
{ "<bits/inf.h>", kPrivate, "<math.h>", kPublic },
{ "<bits/inotify.h>", kPrivate, "<sys/inotify.h>", kPublic },
{ "<bits/ioctl-types.h>", kPrivate, "<sys/ioctl.h>", kPublic },
{ "<bits/ioctls.h>", kPrivate, "<sys/ioctl.h>", kPublic },
{ "<bits/ipc.h>", kPrivate, "<sys/ipc.h>", kPublic },
{ "<bits/ipctypes.h>", kPrivate, "<sys/ipc.h>", kPublic },
{ "<bits/locale.h>", kPrivate, "<locale.h>", kPublic },
{ "<bits/math-finite.h>", kPrivate, "<math.h>", kPublic },
{ "<bits/mathdef.h>", kPrivate, "<math.h>", kPublic },
{ "<bits/mathinline.h>", kPrivate, "<math.h>", kPublic },
{ "<bits/mman-linux.h>", kPrivate, "<sys/mman.h>", kPublic },
{ "<bits/mman.h>", kPrivate, "<sys/mman.h>", kPublic },
{ "<bits/mqueue.h>", kPrivate, "<mqueue.h>", kPublic },
{ "<bits/msq.h>", kPrivate, "<sys/msg.h>", kPublic },
{ "<bits/nan.h>", kPrivate, "<math.h>", kPublic },
{ "<bits/param.h>", kPrivate, "<sys/param.h>", kPublic },
{ "<bits/poll.h>", kPrivate, "<sys/poll.h>", kPrivate },
{ "<bits/predefs.h>", kPrivate, "<features.h>", kPublic },
{ "<bits/resource.h>", kPrivate, "<sys/resource.h>", kPublic },
{ "<bits/select.h>", kPrivate, "<sys/select.h>", kPublic },
{ "<bits/semaphore.h>", kPrivate, "<semaphore.h>", kPublic },
{ "<bits/sigcontext.h>", kPrivate, "<signal.h>", kPublic },
{ "<bits/signalfd.h>", kPrivate, "<sys/signalfd.h>", kPublic },
{ "<bits/stdlib-float.h>", kPrivate, "<stdlib.h>", kPublic },
{ "<bits/string.h>", kPrivate, "<string.h>", kPublic },
{ "<bits/string2.h>", kPrivate, "<string.h>", kPublic },
{ "<bits/string3.h>", kPrivate, "<string.h>", kPublic },
{ "<bits/timerfd.h>", kPrivate, "<sys/timerfd.h>", kPublic },
{ "<bits/typesizes.h>", kPrivate, "<sys/types.h>", kPublic },
// Top-level #includes that just forward to another file:
// $ for i in /usr/include/*; do [ -f $i ] && [ `wc -l < $i` = 1 ] && echo $i; done
// (poll.h, syscall.h, syslog.h, ustat.h, wait.h).
// For each file, I looked at the list of canonical header files --
// http://www.opengroup.org/onlinepubs/9699919799/idx/head.html --
// to decide which of the two files is canonical. If neither is
// on the POSIX.1 1998 list, I just choose the top-level one.
{ "<sys/poll.h>", kPrivate, "<poll.h>", kPublic },
{ "<sys/syslog.h>", kPrivate, "<syslog.h>", kPublic },
{ "<sys/ustat.h>", kPrivate, "<ustat.h>", kPublic },
{ "<wait.h>", kPrivate, "<sys/wait.h>", kPublic },
// These are all files in bits/ that delegate to asm/ and linux/ to
// do all (or lots) of the work. Note these are private->private.
// $ for i in /usr/include/bits/*; do for dir in asm linux; do grep -H -e $dir/`basename $i` $i; done; done
{ "<linux/errno.h>", kPrivate, "<bits/errno.h>", kPrivate },
{ "<asm/ioctls.h>", kPrivate, "<bits/ioctls.h>", kPrivate },
{ "<asm/socket.h>", kPrivate, "<bits/socket.h>", kPrivate },
{ "<linux/socket.h>", kPrivate, "<bits/socket.h>", kPrivate },
// Some asm files have 32- and 64-bit variants:
// $ ls /usr/include/asm/*_{32,64}.h
{ "<asm/posix_types_32.h>", kPrivate, "<asm/posix_types.h>", kPublic },
{ "<asm/posix_types_64.h>", kPrivate, "<asm/posix_types.h>", kPublic },
{ "<asm/unistd_32.h>", kPrivate, "<asm/unistd.h>", kPrivate },
{ "<asm/unistd_64.h>", kPrivate, "<asm/unistd.h>", kPrivate },
// I don't know what grep would have found these. I found them
// via user report.
{ "<asm/errno.h>", kPrivate, "<errno.h>", kPublic },
{ "<asm/errno-base.h>", kPrivate, "<errno.h>", kPublic },
{ "<asm/ptrace-abi.h>", kPrivate, "<asm/ptrace.h>", kPublic },
{ "<asm/unistd.h>", kPrivate, "<sys/syscall.h>", kPublic },
{ "<linux/limits.h>", kPrivate, "<limits.h>", kPublic }, // PATH_MAX
{ "<linux/prctl.h>", kPrivate, "<sys/prctl.h>", kPublic },
{ "<sys/ucontext.h>", kPrivate, "<ucontext.h>", kPublic },
// Exports guaranteed by the C standard
{ "<stdint.h>", kPublic, "<inttypes.h>", kPublic },
};
const IncludeMapEntry stdlib_c_include_map[] = {
// Allow the C++ wrappers around C files. Without these mappings,
// if you #include <cstdio>, iwyu will tell you to replace it with
// <stdio.h>, which is where the symbols are actually defined. We
// inhibit that behavior to keep the <cstdio> alone. Note this is a
// public-to-public mapping: we don't want to *replace* <assert.h>
// with <cassert>, we just want to avoid suggesting changing
// <cassert> back to <assert.h>. (If you *did* want to replace
// assert.h with cassert, you'd change it to a public->private
// mapping.) Here is how I identified the files to map:
// $ for i in /usr/include/c++/4.4/c* ; do ls /usr/include/`basename $i | cut -b2-`.h /usr/lib/gcc/*/4.4/include/`basename $i | cut -b2-`.h 2>/dev/null ; done
//
// These headers are defined in [headers.cpp.c].
// https://github.com/cplusplus/draft/blob/c+%2B20/source/lib-intro.tex
//
// $ curl -s -N https://raw.githubusercontent.com/cplusplus/draft/c%2B%2B20/source/lib-intro.tex | sed -n '/begin{multicolfloattable}.*{headers.cpp.c}/,/end{multicolfloattable}/p' lib-intro.tex | grep tcode | perl -nle 'm/tcode{<c(.*)>}/ && print qq@ { "<$1.h>", kPublic, "<c$1>", kPublic },@' | sort
{ "<assert.h>", kPublic, "<cassert>", kPublic },
{ "<complex.h>", kPublic, "<ccomplex>", kPublic },
{ "<ctype.h>", kPublic, "<cctype>", kPublic },
{ "<errno.h>", kPublic, "<cerrno>", kPublic },
{ "<fenv.h>", kPublic, "<cfenv>", kPublic },
{ "<float.h>", kPublic, "<cfloat>", kPublic },
{ "<inttypes.h>", kPublic, "<cinttypes>", kPublic },
{ "<iso646.h>", kPublic, "<ciso646>", kPublic },
{ "<limits.h>", kPublic, "<climits>", kPublic },
{ "<locale.h>", kPublic, "<clocale>", kPublic },
{ "<math.h>", kPublic, "<cmath>", kPublic },
{ "<setjmp.h>", kPublic, "<csetjmp>", kPublic },
{ "<signal.h>", kPublic, "<csignal>", kPublic },
{ "<stdalign.h>", kPublic, "<cstdalign>", kPublic },
{ "<stdarg.h>", kPublic, "<cstdarg>", kPublic },
{ "<stdbool.h>", kPublic, "<cstdbool>", kPublic },
{ "<stddef.h>", kPublic, "<cstddef>", kPublic },
{ "<stdint.h>", kPublic, "<cstdint>", kPublic },
{ "<stdio.h>", kPublic, "<cstdio>", kPublic },
{ "<stdlib.h>", kPublic, "<cstdlib>", kPublic },
{ "<string.h>", kPublic, "<cstring>", kPublic },
{ "<tgmath.h>", kPublic, "<ctgmath>", kPublic },
{ "<time.h>", kPublic, "<ctime>", kPublic },
{ "<uchar.h>", kPublic, "<cuchar>", kPublic },
{ "<wchar.h>", kPublic, "<cwchar>", kPublic },
{ "<wctype.h>", kPublic, "<cwctype>", kPublic },
};
const char* stdlib_cpp_public_headers[] = {
// These headers are defined in [headers.cpp].
// https://github.com/cplusplus/draft/blob/c+%2B20/source/lib-intro.tex
//
// $ curl -s -N https://raw.githubusercontent.com/cplusplus/draft/c%2B%2B20/source/lib-intro.tex | sed -n '/begin{multicolfloattable}.*{headers.cpp}/,/end{multicolfloattable}/p' lib-intro.tex | grep tcode | perl -nle 'm/tcode{(.*)}/ && print qq@ "$1",@' | sort
"<algorithm>",
"<any>",
"<array>",
"<atomic>",
"<barrier>",
"<bit>",
"<bitset>",
"<charconv>",
"<chrono>",
"<codecvt>",
"<compare>",
"<complex>",
"<concepts>",
"<condition_variable>",
"<coroutine>",
"<deque>",
"<exception>",
"<execution>",
"<filesystem>",
"<format>",
"<forward_list>",
"<fstream>",
"<functional>",
"<future>",
"<initializer_list>",
"<iomanip>",
"<ios>",
"<iosfwd>",
"<iostream>",
"<istream>",
"<iterator>",
"<latch>",
"<limits>",
"<list>",
"<locale>",
"<map>",
"<memory>",
"<memory_resource>",
"<mutex>",
"<new>",
"<numbers>",
"<numeric>",
"<optional>",
"<ostream>",
"<queue>",
"<random>",
"<ranges>",
"<ratio>",
"<regex>",
"<scoped_allocator>",
"<semaphore>",
"<set>",
"<shared_mutex>",
"<source_location>",
"<span>",
"<sstream>",
"<stack>",
"<stdexcept>",
"<stop_token>",
"<streambuf>",
"<string>",
"<string_view>",
"<strstream>",
"<syncstream>",
"<system_error>",
"<thread>",
"<tuple>",
"<typeindex>",
"<typeinfo>",
"<type_traits>",
"<unordered_map>",
"<unordered_set>",
"<utility>",
"<valarray>",
"<variant>",
"<vector>",
"<version>",
};
// Private -> public include mappings for GNU libstdc++
//
// Note: make sure to sync this setting with gcc.stl.headers.imp
//
const IncludeMapEntry libstdcpp_include_map[] = {
// cd /usr/include/c++/10 && grep -r headername | perl -nle 'm/^([^:]+).*@headername\{([^,]*)\}/ && print qq@ { "<$1>", kPrivate, "<$2>", kPublic },@' | sort -u
{ "<backward/auto_ptr.h>", kPrivate, "<memory>", kPublic },
{ "<backward/backward_warning.h>", kPrivate, "<iosfwd>", kPublic },
{ "<backward/binders.h>", kPrivate, "<functional>", kPublic },
{ "<bits/algorithmfwd.h>", kPrivate, "<algorithm>", kPublic },
{ "<bits/allocated_ptr.h>", kPrivate, "<memory>", kPublic },
{ "<bits/allocator.h>", kPrivate, "<memory>", kPublic },
{ "<bits/alloc_traits.h>", kPrivate, "<memory>", kPublic },
{ "<bits/atomic_base.h>", kPrivate, "<atomic>", kPublic },
{ "<bits/atomic_lockfree_defines.h>", kPrivate, "<atomic>", kPublic },
{ "<bits/basic_ios.h>", kPrivate, "<ios>", kPublic },
{ "<bits/basic_ios.tcc>", kPrivate, "<ios>", kPublic },
{ "<bits/basic_string.h>", kPrivate, "<string>", kPublic },
{ "<bits/basic_string.tcc>", kPrivate, "<string>", kPublic },
{ "<bits/boost_concept_check.h>", kPrivate, "<iterator>", kPublic },
{ "<bits/c++0x_warning.h>", kPrivate, "<iosfwd>", kPublic },
{ "<bits/charconv.h>", kPrivate, "<charconv>", kPublic },
{ "<bits/char_traits.h>", kPrivate, "<string>", kPublic },
{ "<bits/codecvt.h>", kPrivate, "<locale>", kPublic },
{ "<bits/concept_check.h>", kPrivate, "<iterator>", kPublic },
{ "<bits/cpp_type_traits.h>", kPrivate, "<ext/type_traits>", kPublic },
{ "<bits/cxxabi_forced.h>", kPrivate, "<cxxabi.h>", kPublic },
{ "<bits/deque.tcc>", kPrivate, "<deque>", kPublic },
{ "<bits/exception_defines.h>", kPrivate, "<exception>", kPublic },
{ "<bits/exception_ptr.h>", kPrivate, "<exception>", kPublic },
{ "<bits/forward_list.h>", kPrivate, "<forward_list>", kPublic },
{ "<bits/forward_list.tcc>", kPrivate, "<forward_list>", kPublic },
{ "<bits/fs_dir.h>", kPrivate, "<filesystem>", kPublic },
{ "<bits/fs_fwd.h>", kPrivate, "<filesystem>", kPublic },
{ "<bits/fs_ops.h>", kPrivate, "<filesystem>", kPublic },
{ "<bits/fs_path.h>", kPrivate, "<filesystem>", kPublic },
{ "<bits/fstream.tcc>", kPrivate, "<fstream>", kPublic },
{ "<bits/functexcept.h>", kPrivate, "<exception>", kPublic },
{ "<bits/functional_hash.h>", kPrivate, "<functional>", kPublic },
{ "<bits/gslice_array.h>", kPrivate, "<valarray>", kPublic },
{ "<bits/gslice.h>", kPrivate, "<valarray>", kPublic },
{ "<bits/hash_bytes.h>", kPrivate, "<functional>", kPublic },
{ "<bits/indirect_array.h>", kPrivate, "<valarray>", kPublic },
{ "<bits/int_limits.h>", kPrivate, "<limits>", kPublic },
{ "<bits/invoke.h>", kPrivate, "<functional>", kPublic },
{ "<bits/ios_base.h>", kPrivate, "<ios>", kPublic },
{ "<bits/istream.tcc>", kPrivate, "<istream>", kPublic },
{ "<bits/iterator_concepts.h>", kPrivate, "<iterator>", kPublic },
{ "<bits/list.tcc>", kPrivate, "<list>", kPublic },
{ "<bits/locale_classes.h>", kPrivate, "<locale>", kPublic },
{ "<bits/locale_classes.tcc>", kPrivate, "<locale>", kPublic },
{ "<bits/locale_conv.h>", kPrivate, "<locale>", kPublic },
{ "<bits/locale_facets.h>", kPrivate, "<locale>", kPublic },
{ "<bits/locale_facets_nonio.h>", kPrivate, "<locale>", kPublic },
{ "<bits/locale_facets_nonio.tcc>", kPrivate, "<locale>", kPublic },
{ "<bits/locale_facets.tcc>", kPrivate, "<locale>", kPublic },
{ "<bits/localefwd.h>", kPrivate, "<locale>", kPublic },
{ "<bits/mask_array.h>", kPrivate, "<valarray>", kPublic },
{ "<bits/memoryfwd.h>", kPrivate, "<memory>", kPublic },
{ "<bits/move.h>", kPrivate, "<utility>", kPublic },
{ "<bits/nested_exception.h>", kPrivate, "<exception>", kPublic },
{ "<bits/ostream_insert.h>", kPrivate, "<ostream>", kPublic },
{ "<bits/ostream.tcc>", kPrivate, "<ostream>", kPublic },
{ "<bits/parse_numbers.h>", kPrivate, "<chrono>", kPublic },
{ "<bits/postypes.h>", kPrivate, "<iosfwd>", kPublic },
{ "<bits/predefined_ops.h>", kPrivate, "<algorithm>", kPublic },
{ "<bits/ptr_traits.h>", kPrivate, "<memory>", kPublic },
{ "<bits/quoted_string.h>", kPrivate, "<iomanip>", kPublic },
{ "<bits/random.h>", kPrivate, "<random>", kPublic },
{ "<bits/random.tcc>", kPrivate, "<random>", kPublic },
{ "<bits/range_access.h>", kPrivate, "<iterator>", kPublic },
{ "<bits/range_cmp.h>", kPrivate, "<functional>", kPublic },
{ "<bits/ranges_algobase.h>", kPrivate, "<algorithm>", kPublic },
{ "<bits/ranges_algo.h>", kPrivate, "<algorithm>", kPublic },
{ "<bits/ranges_uninitialized.h>", kPrivate, "<memory>", kPublic },
{ "<bits/refwrap.h>", kPrivate, "<functional>", kPublic },
{ "<bits/regex_automaton.h>", kPrivate, "<regex>", kPublic },
{ "<bits/regex_automaton.tcc>", kPrivate, "<regex>", kPublic },
{ "<bits/regex_compiler.h>", kPrivate, "<regex>", kPublic },
{ "<bits/regex_compiler.tcc>", kPrivate, "<regex>", kPublic },
{ "<bits/regex_constants.h>", kPrivate, "<regex>", kPublic },
{ "<bits/regex_error.h>", kPrivate, "<regex>", kPublic },
{ "<bits/regex_executor.h>", kPrivate, "<regex>", kPublic },
{ "<bits/regex_executor.tcc>", kPrivate, "<regex>", kPublic },
{ "<bits/regex.h>", kPrivate, "<regex>", kPublic },
{ "<bits/regex_scanner.h>", kPrivate, "<regex>", kPublic },
{ "<bits/regex_scanner.tcc>", kPrivate, "<regex>", kPublic },
{ "<bits/regex.tcc>", kPrivate, "<regex>", kPublic },
{ "<bits/shared_ptr_atomic.h>", kPrivate, "<memory>", kPublic },
{ "<bits/shared_ptr_base.h>", kPrivate, "<memory>", kPublic },
{ "<bits/shared_ptr.h>", kPrivate, "<memory>", kPublic },
{ "<bits/slice_array.h>", kPrivate, "<valarray>", kPublic },
{ "<bits/specfun.h>", kPrivate, "<cmath>", kPublic },
{ "<bits/sstream.tcc>", kPrivate, "<sstream>", kPublic },
{ "<bits/std_function.h>", kPrivate, "<functional>", kPublic },
{ "<bits/std_mutex.h>", kPrivate, "<mutex>", kPublic },
{ "<bits/stl_algobase.h>", kPrivate, "<algorithm>", kPublic },
{ "<bits/stl_algo.h>", kPrivate, "<algorithm>", kPublic },
{ "<bits/stl_bvector.h>", kPrivate, "<vector>", kPublic },
{ "<bits/stl_construct.h>", kPrivate, "<memory>", kPublic },
{ "<bits/stl_deque.h>", kPrivate, "<deque>", kPublic },
{ "<bits/stl_function.h>", kPrivate, "<functional>", kPublic },
{ "<bits/stl_heap.h>", kPrivate, "<queue>", kPublic },
{ "<bits/stl_iterator_base_funcs.h>", kPrivate, "<iterator>", kPublic },
{ "<bits/stl_iterator_base_types.h>", kPrivate, "<iterator>", kPublic },
{ "<bits/stl_iterator.h>", kPrivate, "<iterator>", kPublic },
{ "<bits/stl_list.h>", kPrivate, "<list>", kPublic },
{ "<bits/stl_map.h>", kPrivate, "<map>", kPublic },
{ "<bits/stl_multimap.h>", kPrivate, "<map>", kPublic },
{ "<bits/stl_multiset.h>", kPrivate, "<set>", kPublic },
{ "<bits/stl_numeric.h>", kPrivate, "<numeric>", kPublic },
{ "<bits/stl_pair.h>", kPrivate, "<utility>", kPublic },
{ "<bits/stl_queue.h>", kPrivate, "<queue>", kPublic },
{ "<bits/stl_raw_storage_iter.h>", kPrivate, "<memory>", kPublic },
{ "<bits/stl_relops.h>", kPrivate, "<utility>", kPublic },
{ "<bits/stl_set.h>", kPrivate, "<set>", kPublic },
{ "<bits/stl_stack.h>", kPrivate, "<stack>", kPublic },
{ "<bits/stl_tempbuf.h>", kPrivate, "<memory>", kPublic },
{ "<bits/stl_uninitialized.h>", kPrivate, "<memory>", kPublic },
{ "<bits/stl_vector.h>", kPrivate, "<vector>", kPublic },
{ "<bits/streambuf_iterator.h>", kPrivate, "<iterator>", kPublic },
{ "<bits/streambuf.tcc>", kPrivate, "<streambuf>", kPublic },
{ "<bits/stream_iterator.h>", kPrivate, "<iterator>", kPublic },
{ "<bits/stringfwd.h>", kPrivate, "<string>", kPublic },
{ "<bits/string_view.tcc>", kPrivate, "<string_view>", kPublic },
{ "<bits/uniform_int_dist.h>", kPrivate, "<random>", kPublic },
{ "<bits/unique_lock.h>", kPrivate, "<mutex>", kPublic },
{ "<bits/unique_ptr.h>", kPrivate, "<memory>", kPublic },
{ "<bits/unordered_map.h>", kPrivate, "<unordered_map>", kPublic },
{ "<bits/unordered_set.h>", kPrivate, "<unordered_set>", kPublic },
{ "<bits/utility.h>", kPrivate, "<utility>", kPublic },
{ "<bits/valarray_after.h>", kPrivate, "<valarray>", kPublic },
{ "<bits/valarray_array.h>", kPrivate, "<valarray>", kPublic },
{ "<bits/valarray_array.tcc>", kPrivate, "<valarray>", kPublic },
{ "<bits/valarray_before.h>", kPrivate, "<valarray>", kPublic },
{ "<bits/vector.tcc>", kPrivate, "<vector>", kPublic },
{ "<decimal/decimal.h>", kPrivate, "<decimal>", kPublic },
{ "<experimental/bits/fs_dir.h>", kPrivate, "<experimental/filesystem>", kPublic },
{ "<experimental/bits/fs_fwd.h>", kPrivate, "<experimental/filesystem>", kPublic },
{ "<experimental/bits/fs_ops.h>", kPrivate, "<experimental/filesystem>", kPublic },
{ "<experimental/bits/fs_path.h>", kPrivate, "<experimental/filesystem>", kPublic },
{ "<experimental/bits/net.h>", kPrivate, "<experimental/net>", kPublic },
{ "<experimental/bits/shared_ptr.h>", kPrivate, "<experimental/memory>", kPublic },
{ "<experimental/bits/string_view.tcc>", kPrivate, "<experimental/string_view>", kPublic },
{ "<ext/cast.h>", kPrivate, "<ext/pointer.h>", kPublic },
{ "<ext/random.tcc>", kPrivate, "<ext/random>", kPublic },
{ "<ext/rc_string_base.h>", kPrivate, "<ext/vstring.h>", kPublic },
{ "<ext/ropeimpl.h>", kPrivate, "<ext/rope>", kPublic },
{ "<ext/sso_string_base.h>", kPrivate, "<ext/vstring.h>", kPublic },
{ "<ext/vstring_fwd.h>", kPrivate, "<ext/vstring.h>", kPublic },
{ "<ext/vstring.tcc>", kPrivate, "<ext/vstring.h>", kPublic },
{ "<ext/vstring_util.h>", kPrivate, "<ext/vstring.h>", kPublic },
{ "<tr1/bessel_function.tcc>", kPrivate, "<tr1/cmath>", kPublic },
{ "<tr1/beta_function.tcc>", kPrivate, "<tr1/cmath>", kPublic },
{ "<tr1/ell_integral.tcc>", kPrivate, "<tr1/cmath>", kPublic },
{ "<tr1/exp_integral.tcc>", kPrivate, "<tr1/cmath>", kPublic },
{ "<tr1/functional_hash.h>", kPrivate, "<tr1/functional>", kPublic },
{ "<tr1/gamma.tcc>", kPrivate, "<tr1/cmath>", kPublic },
{ "<tr1/hypergeometric.tcc>", kPrivate, "<tr1/cmath>", kPublic },
{ "<tr1/legendre_function.tcc>", kPrivate, "<tr1/cmath>", kPublic },
{ "<tr1/modified_bessel_func.tcc>", kPrivate, "<tr1/cmath>", kPublic },
{ "<tr1/poly_hermite.tcc>", kPrivate, "<tr1/cmath>", kPublic },
{ "<tr1/poly_laguerre.tcc>", kPrivate, "<tr1/cmath>", kPublic },
{ "<tr1/random.h>", kPrivate, "<tr1/random>", kPublic },
{ "<tr1/random.tcc>", kPrivate, "<tr1/random>", kPublic },
{ "<tr1/riemann_zeta.tcc>", kPrivate, "<tr1/cmath>", kPublic },
{ "<tr1/shared_ptr.h>", kPrivate, "<tr1/memory>", kPublic },
{ "<tr1/special_function_util.h>", kPrivate, "<tr1/cmath>", kPublic },
{ "<tr1/unordered_map.h>", kPrivate, "<tr1/unordered_map>", kPublic },
{ "<tr1/unordered_set.h>", kPrivate, "<tr1/unordered_set>", kPublic },
{ "<tr2/dynamic_bitset.tcc>", kPrivate, "<tr2/dynamic_bitset>", kPublic },
// cd /usr/include/x86_64-linux-gnu/c++/10 && grep -r headername | perl -nle 'm/^([^:]+).*@headername\{([^,]*)\}/ && print qq@ { "<$1>", kPrivate, "<$2>", kPublic },@' | sort -u
{ "<bits/basic_file.h>", kPrivate, "<ios>", kPublic },
{ "<bits/c++allocator.h>", kPrivate, "<memory>", kPublic },
{ "<bits/c++config.h>", kPrivate, "<iosfwd>", kPublic },
{ "<bits/c++config.h>", kPrivate, "<version>", kPublic },
{ "<bits/c++io.h>", kPrivate, "<ios>", kPublic },
{ "<bits/c++locale.h>", kPrivate, "<locale>", kPublic },
{ "<bits/cpu_defines.h>", kPrivate, "<iosfwd>", kPublic },
{ "<bits/ctype_base.h>", kPrivate, "<locale>", kPublic },
{ "<bits/ctype_inline.h>", kPrivate, "<locale>", kPublic },
{ "<bits/cxxabi_tweaks.h>", kPrivate, "<cxxabi.h>", kPublic },
{ "<bits/error_constants.h>", kPrivate, "<system_error>", kPublic },
{ "<bits/messages_members.h>", kPrivate, "<locale>", kPublic },
{ "<bits/opt_random.h>", kPrivate, "<random>", kPublic },
{ "<bits/os_defines.h>", kPrivate, "<iosfwd>", kPublic },
{ "<bits/time_members.h>", kPrivate, "<locale>", kPublic },
{ "<ext/opt_random.h>", kPrivate, "<ext/random>", kPublic },
// ( cd /usr/crosstool/v12/gcc-4.3.1-glibc-2.3.6-grte/x86_64-unknown-linux-gnu/x86_64-unknown-linux-gnu/include/c++/4.3.1 && grep '^ *# *include' {ext/,tr1/,}* | perl -nle 'm/^([^:]+).*<([^>]+)>/ && print qq@ { "<$2>", kPrivate, "<$1>", kPublic },@' | grep -e bits/ -e tr1_impl/ | sort -u)
// I removed a lot of 'meaningless' dependencies -- for instance,
// <functional> #includes <bits/stringfwd.h>, but if someone is
// using strings, <functional> isn't enough to satisfy iwyu.
// We may need to add other dirs in future versions of gcc.
{ "<bits/atomic_word.h>", kPrivate, "<ext/atomicity.h>", kPublic },
{ "<bits/basic_file.h>", kPrivate, "<fstream>", kPublic },
{ "<bits/boost_sp_shared_count.h>", kPrivate, "<memory>", kPublic },
{ "<bits/c++io.h>", kPrivate, "<ext/stdio_sync_filebuf.h>", kPublic },
{ "<bits/c++config.h>", kPrivate, "<cstddef>", kPublic },
{ "<bits/cmath.tcc>", kPrivate, "<cmath>", kPublic },
{ "<bits/codecvt.h>", kPrivate, "<fstream>", kPublic },
{ "<bits/cxxabi_tweaks.h>", kPrivate, "<cxxabi.h>", kPublic },
{ "<bits/functional_hash.h>", kPrivate, "<unordered_map>", kPublic },
{ "<bits/hashtable.h>", kPrivate, "<unordered_map>", kPublic },
{ "<bits/hashtable.h>", kPrivate, "<unordered_set>", kPublic },
{ "<bits/ios_base.h>", kPrivate, "<iostream>", kPublic },
{ "<bits/ios_base.h>", kPrivate, "<iomanip>", kPublic },
{ "<bits/postypes.h>", kPrivate, "<iostream>", kPublic },
{ "<bits/stl_pair.h>", kPrivate, "<tr1/utility>", kPublic },
{ "<bits/stl_tree.h>", kPrivate, "<map>", kPublic },
{ "<bits/stl_tree.h>", kPrivate, "<set>", kPublic },
{ "<tr1_impl/array>", kPrivate, "<array>", kPublic },
{ "<tr1_impl/array>", kPrivate, "<tr1/array>", kPublic },
{ "<tr1_impl/boost_shared_ptr.h>", kPrivate, "<memory>", kPublic },
{ "<tr1_impl/boost_shared_ptr.h>", kPrivate, "<tr1/memory>", kPublic },
{ "<tr1_impl/boost_sp_counted_base.h>", kPrivate, "<memory>", kPublic },
{ "<tr1_impl/boost_sp_counted_base.h>", kPrivate, "<tr1/memory>", kPublic },
{ "<tr1_impl/cctype>", kPrivate, "<cctype>", kPublic },
{ "<tr1_impl/cctype>", kPrivate, "<tr1/cctype>", kPublic },
{ "<tr1_impl/cfenv>", kPrivate, "<cfenv>", kPublic },
{ "<tr1_impl/cfenv>", kPrivate, "<tr1/cfenv>", kPublic },
{ "<tr1_impl/cinttypes>", kPrivate, "<cinttypes>", kPublic },
{ "<tr1_impl/cinttypes>", kPrivate, "<tr1/cinttypes>", kPublic },
{ "<tr1_impl/cmath>", kPrivate, "<cmath>", kPublic },
{ "<tr1_impl/cmath>", kPrivate, "<tr1/cmath>", kPublic },
{ "<tr1_impl/complex>", kPrivate, "<complex>", kPublic },
{ "<tr1_impl/complex>", kPrivate, "<tr1/complex>", kPublic },
{ "<tr1_impl/cstdint>", kPrivate, "<cstdint>", kPublic },
{ "<tr1_impl/cstdint>", kPrivate, "<tr1/cstdint>", kPublic },
{ "<tr1_impl/cstdio>", kPrivate, "<cstdio>", kPublic },
{ "<tr1_impl/cstdio>", kPrivate, "<tr1/cstdio>", kPublic },
{ "<tr1_impl/cstdlib>", kPrivate, "<cstdlib>", kPublic },
{ "<tr1_impl/cstdlib>", kPrivate, "<tr1/cstdlib>", kPublic },
{ "<tr1_impl/cwchar>", kPrivate, "<cwchar>", kPublic },
{ "<tr1_impl/cwchar>", kPrivate, "<tr1/cwchar>", kPublic },
{ "<tr1_impl/cwctype>", kPrivate, "<cwctype>", kPublic },
{ "<tr1_impl/cwctype>", kPrivate, "<tr1/cwctype>", kPublic },
{ "<tr1_impl/functional>", kPrivate, "<functional>", kPublic },
{ "<tr1_impl/functional>", kPrivate, "<tr1/functional>", kPublic },
{ "<tr1_impl/random>", kPrivate, "<random>", kPublic },
{ "<tr1_impl/random>", kPrivate, "<tr1/random>", kPublic },
{ "<tr1_impl/regex>", kPrivate, "<regex>", kPublic },
{ "<tr1_impl/regex>", kPrivate, "<tr1/regex>", kPublic },
{ "<tr1_impl/type_traits>", kPrivate, "<tr1/type_traits>", kPublic },
{ "<tr1_impl/type_traits>", kPrivate, "<type_traits>", kPublic },
{ "<tr1_impl/unordered_map>", kPrivate, "<tr1/unordered_map>", kPublic },
{ "<tr1_impl/unordered_map>", kPrivate, "<unordered_map>", kPublic },
{ "<tr1_impl/unordered_set>", kPrivate, "<tr1/unordered_set>", kPublic },
{ "<tr1_impl/unordered_set>", kPrivate, "<unordered_set>", kPublic },
{ "<tr1_impl/utility>", kPrivate, "<tr1/utility>", kPublic },
{ "<tr1_impl/utility>", kPrivate, "<utility>", kPublic },
// Hash and hashtable-based containers.
{ "<tr1_impl/functional_hash.h>", kPrivate, "<tr1/functional>", kPublic },
{ "<tr1_impl/functional_hash.h>", kPrivate, "<tr1/unordered_map>", kPublic },
{ "<tr1_impl/functional_hash.h>", kPrivate, "<tr1/unordered_set>", kPublic },
{ "<tr1/functional_hash.h>", kPrivate, "<tr1/unordered_map>", kPublic },
{ "<tr1/functional_hash.h>", kPrivate, "<tr1/unordered_set>", kPublic },
{ "<tr1_impl/hashtable>", kPrivate, "<tr1/unordered_map>", kPublic },
{ "<tr1_impl/hashtable>", kPrivate, "<tr1/unordered_set>", kPublic },
{ "<tr1/hashtable.h>", kPrivate, "<tr1/unordered_map>", kPublic },
{ "<tr1/hashtable.h>", kPrivate, "<tr1/unordered_set>", kPublic },
// All .tcc files are gcc internal-include files. We get them from
// ( cd /usr/crosstool/v12/gcc-4.3.1-glibc-2.3.6-grte/x86_64-unknown-linux-gnu/x86_64-unknown-linux-gnu/include/c++/4.3.1 && grep -R '^ *# *include.*tcc' * | perl -nle 'm/^([^:]+).*[<"]([^>"]+)[>"]/ && print qq@ { "<$2>", kPrivate, "<$1>", kPublic },@' | sort )
// I had to manually edit some of the entries to say the map-to is private.
{ "<bits/cmath.tcc>", kPrivate, "<cmath>", kPublic },
{ "<debug/safe_iterator.tcc>", kPrivate, "<debug/safe_iterator.h>", kPublic },
{ "<tr1_impl/random.tcc>", kPrivate, "<tr1_impl/random>", kPrivate },
// Some bits->bits #includes: A few files in bits re-export
// symbols from other files in bits.
// ( cd /usr/crosstool/v12/gcc-4.3.1-glibc-2.3.6-grte/x86_64-unknown-linux-gnu/x86_64-unknown-linux-gnu/include/c++/4.3.1 && grep '^ *# *include.*bits/' bits/* | perl -nle 'm/^([^:]+).*<([^>]+)>/ && print qq@ { "<$2>", kPrivate, "<$1>", kPrivate },@' | grep bits/ | sort -u)
// and carefully picked reasonable-looking results (algorithm
// *uses* pair but doesn't *re-export* pair, for instance).
{ "<bits/c++allocator.h>", kPrivate, "<bits/allocator.h>", kPrivate },
{ "<bits/ctype_base.h>", kPrivate, "<bits/locale_facets.h>", kPrivate },
{ "<bits/ctype_inline.h>", kPrivate, "<bits/locale_facets.h>", kPrivate },
{ "<bits/messages_members.h>", kPrivate,
"<bits/locale_facets_nonio.h>", kPrivate },
{ "<bits/stl_move.h>", kPrivate, "<bits/stl_algobase.h>", kPrivate },
// I don't think we want to be having people move to 'backward/'
// yet. (These hold deprecated STL classes that we still use
// actively.) These are the ones that turned up in an analysis of
{ "<backward/hash_fun.h>", kPrivate, "<hash_map>", kPublic },