[Bug c/42440] New: optimization bug with btwowc(EOF) in wchar.h
gcc-bugzilla at gcc dot gnu dot org
gcc-bugzilla@gcc.gnu.org
Sun Dec 20 01:35:00 GMT 2009
Compiled with gcc 4.4.2 -O, the executable resulting from the .i
file below gets a seg fault. Compiled with -O2, the executable
hangs. Did not happen with earlier gcc versions (4.2.x, 4.1.x)
that I tried. (Aside: this code is the conftest.c for the
btwowc(EOF) test in coreutils 8.2.)
FWIW, Alan Curry <pacman-cu@kosh.dhis.org> looked at the
assembly code and diagnosed it as an infinite tail recursion
(suggested by Andreas Schwab). Alan said, "-O1 segfaults
eventually because the recursion grows the stack to infinite
size. -O2 optimized the recursion into a jump, eliminating the
stack growth."
I hope the lengthy .i file does not get mangled somewhere.
Environment:
System: Linux tug.org 2.6.18-164.6.1.el5PAE #1 SMP Tue Nov 3 16:55:59 EST 2009
i686 i686 i386 GNU/Linux
Architecture: i686
x86, gnu-linux
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: ./configure --prefix=/usr/local/gnu --enable-languages=c,c++
How-To-Repeat:
gcc -O conftest.i; a.out # or -O2
# 1 "conftest.c"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "conftest.c"
# 268 "conftest.c"
# 1 "/usr/include/locale.h" 1 3 4
# 26 "/usr/include/locale.h" 3 4
# 1 "/usr/include/features.h" 1 3 4
# 329 "/usr/include/features.h" 3 4
# 1 "/usr/include/sys/cdefs.h" 1 3 4
# 313 "/usr/include/sys/cdefs.h" 3 4
# 1 "/usr/include/bits/wordsize.h" 1 3 4
# 314 "/usr/include/sys/cdefs.h" 2 3 4
# 330 "/usr/include/features.h" 2 3 4
# 352 "/usr/include/features.h" 3 4
# 1 "/usr/include/gnu/stubs.h" 1 3 4
# 1 "/usr/include/bits/wordsize.h" 1 3 4
# 5 "/usr/include/gnu/stubs.h" 2 3 4
# 1 "/usr/include/gnu/stubs-32.h" 1 3 4
# 8 "/usr/include/gnu/stubs.h" 2 3 4
# 353 "/usr/include/features.h" 2 3 4
# 27 "/usr/include/locale.h" 2 3 4
# 1 "/usr/local/gnu/lib/gcc/i686-pc-linux-gnu/4.4.2/include/stddef.h" 1 3 4
# 30 "/usr/include/locale.h" 2 3 4
# 1 "/usr/include/bits/locale.h" 1 3 4
# 27 "/usr/include/bits/locale.h" 3 4
enum
{
__LC_CTYPE = 0,
__LC_NUMERIC = 1,
__LC_TIME = 2,
__LC_COLLATE = 3,
__LC_MONETARY = 4,
__LC_MESSAGES = 5,
__LC_ALL = 6,
__LC_PAPER = 7,
__LC_NAME = 8,
__LC_ADDRESS = 9,
__LC_TELEPHONE = 10,
__LC_MEASUREMENT = 11,
__LC_IDENTIFICATION = 12
};
# 31 "/usr/include/locale.h" 2 3 4
# 52 "/usr/include/locale.h" 3 4
struct lconv
{
char *decimal_point;
char *thousands_sep;
char *grouping;
char *int_curr_symbol;
char *currency_symbol;
char *mon_decimal_point;
char *mon_thousands_sep;
char *mon_grouping;
char *positive_sign;
char *negative_sign;
char int_frac_digits;
char frac_digits;
char p_cs_precedes;
char p_sep_by_space;
char n_cs_precedes;
char n_sep_by_space;
char p_sign_posn;
char n_sign_posn;
char int_p_cs_precedes;
char int_p_sep_by_space;
char int_n_cs_precedes;
char int_n_sep_by_space;
char int_p_sign_posn;
char int_n_sign_posn;
# 119 "/usr/include/locale.h" 3 4
};
extern char *setlocale (int __category, __const char *__locale) __attribute__
((__nothrow__));
extern struct lconv *localeconv (void) __attribute__ ((__nothrow__));
# 146 "/usr/include/locale.h" 3 4
# 1 "/usr/include/xlocale.h" 1 3 4
# 28 "/usr/include/xlocale.h" 3 4
typedef struct __locale_struct
{
struct locale_data *__locales[13];
const unsigned short int *__ctype_b;
const int *__ctype_tolower;
const int *__ctype_toupper;
const char *__names[13];
} *__locale_t;
# 147 "/usr/include/locale.h" 2 3 4
typedef __locale_t locale_t;
extern __locale_t newlocale (int __category_mask, __const char *__locale,
__locale_t __base) __attribute__ ((__nothrow__));
# 189 "/usr/include/locale.h" 3 4
extern __locale_t duplocale (__locale_t __dataset) __attribute__
((__nothrow__));
extern void freelocale (__locale_t __dataset) __attribute__ ((__nothrow__));
extern __locale_t uselocale (__locale_t __dataset) __attribute__
((__nothrow__));
# 269 "conftest.c" 2
# 1 "/usr/include/stdio.h" 1 3 4
# 30 "/usr/include/stdio.h" 3 4
# 1 "/usr/local/gnu/lib/gcc/i686-pc-linux-gnu/4.4.2/include/stddef.h" 1 3 4
# 211 "/usr/local/gnu/lib/gcc/i686-pc-linux-gnu/4.4.2/include/stddef.h" 3 4
typedef unsigned int size_t;
# 35 "/usr/include/stdio.h" 2 3 4
# 1 "/usr/include/bits/types.h" 1 3 4
# 28 "/usr/include/bits/types.h" 3 4
# 1 "/usr/include/bits/wordsize.h" 1 3 4
# 29 "/usr/include/bits/types.h" 2 3 4
# 1 "/usr/local/gnu/lib/gcc/i686-pc-linux-gnu/4.4.2/include/stddef.h" 1 3 4
# 32 "/usr/include/bits/types.h" 2 3 4
typedef unsigned char __u_char;
typedef unsigned short int __u_short;
typedef unsigned int __u_int;
typedef unsigned long int __u_long;
typedef signed char __int8_t;
typedef unsigned char __uint8_t;
typedef signed short int __int16_t;
typedef unsigned short int __uint16_t;
typedef signed int __int32_t;
typedef unsigned int __uint32_t;
__extension__ typedef signed long long int __int64_t;
__extension__ typedef unsigned long long int __uint64_t;
__extension__ typedef long long int __quad_t;
__extension__ typedef unsigned long long int __u_quad_t;
# 134 "/usr/include/bits/types.h" 3 4
# 1 "/usr/include/bits/typesizes.h" 1 3 4
# 135 "/usr/include/bits/types.h" 2 3 4
__extension__ typedef __u_quad_t __dev_t;
__extension__ typedef unsigned int __uid_t;
__extension__ typedef unsigned int __gid_t;
__extension__ typedef unsigned long int __ino_t;
__extension__ typedef __u_quad_t __ino64_t;
__extension__ typedef unsigned int __mode_t;
__extension__ typedef unsigned int __nlink_t;
__extension__ typedef long int __off_t;
__extension__ typedef __quad_t __off64_t;
__extension__ typedef int __pid_t;
__extension__ typedef struct { int __val[2]; } __fsid_t;
__extension__ typedef long int __clock_t;
__extension__ typedef unsigned long int __rlim_t;
__extension__ typedef __u_quad_t __rlim64_t;
__extension__ typedef unsigned int __id_t;
__extension__ typedef long int __time_t;
__extension__ typedef unsigned int __useconds_t;
__extension__ typedef long int __suseconds_t;
__extension__ typedef int __daddr_t;
__extension__ typedef long int __swblk_t;
__extension__ typedef int __key_t;
__extension__ typedef int __clockid_t;
__extension__ typedef void * __timer_t;
__extension__ typedef long int __blksize_t;
__extension__ typedef long int __blkcnt_t;
__extension__ typedef __quad_t __blkcnt64_t;
__extension__ typedef unsigned long int __fsblkcnt_t;
__extension__ typedef __u_quad_t __fsblkcnt64_t;
__extension__ typedef unsigned long int __fsfilcnt_t;
__extension__ typedef __u_quad_t __fsfilcnt64_t;
__extension__ typedef int __ssize_t;
typedef __off64_t __loff_t;
typedef __quad_t *__qaddr_t;
typedef char *__caddr_t;
__extension__ typedef int __intptr_t;
__extension__ typedef unsigned int __socklen_t;
# 37 "/usr/include/stdio.h" 2 3 4
typedef struct _IO_FILE FILE;
# 62 "/usr/include/stdio.h" 3 4
typedef struct _IO_FILE __FILE;
# 72 "/usr/include/stdio.h" 3 4
# 1 "/usr/include/libio.h" 1 3 4
# 32 "/usr/include/libio.h" 3 4
# 1 "/usr/include/_G_config.h" 1 3 4
# 14 "/usr/include/_G_config.h" 3 4
# 1 "/usr/local/gnu/lib/gcc/i686-pc-linux-gnu/4.4.2/include/stddef.h" 1 3 4
# 323 "/usr/local/gnu/lib/gcc/i686-pc-linux-gnu/4.4.2/include/stddef.h" 3 4
typedef long int wchar_t;
# 352 "/usr/local/gnu/lib/gcc/i686-pc-linux-gnu/4.4.2/include/stddef.h" 3 4
typedef unsigned int wint_t;
# 15 "/usr/include/_G_config.h" 2 3 4
# 24 "/usr/include/_G_config.h" 3 4
# 1 "/usr/include/wchar.h" 1 3 4
# 48 "/usr/include/wchar.h" 3 4
# 1 "/usr/local/gnu/lib/gcc/i686-pc-linux-gnu/4.4.2/include/stddef.h" 1 3 4
# 49 "/usr/include/wchar.h" 2 3 4
# 1 "/usr/include/bits/wchar.h" 1 3 4
# 51 "/usr/include/wchar.h" 2 3 4
# 76 "/usr/include/wchar.h" 3 4
typedef struct
{
int __count;
union
{
wint_t __wch;
char __wchb[4];
} __value;
} __mbstate_t;
# 25 "/usr/include/_G_config.h" 2 3 4
typedef struct
{
__off_t __pos;
__mbstate_t __state;
} _G_fpos_t;
typedef struct
{
__off64_t __pos;
__mbstate_t __state;
} _G_fpos64_t;
# 44 "/usr/include/_G_config.h" 3 4
# 1 "/usr/include/gconv.h" 1 3 4
# 28 "/usr/include/gconv.h" 3 4
# 1 "/usr/include/wchar.h" 1 3 4
# 48 "/usr/include/wchar.h" 3 4
# 1 "/usr/local/gnu/lib/gcc/i686-pc-linux-gnu/4.4.2/include/stddef.h" 1 3 4
# 49 "/usr/include/wchar.h" 2 3 4
# 29 "/usr/include/gconv.h" 2 3 4
# 1 "/usr/local/gnu/lib/gcc/i686-pc-linux-gnu/4.4.2/include/stddef.h" 1 3 4
# 32 "/usr/include/gconv.h" 2 3 4
enum
{
__GCONV_OK = 0,
__GCONV_NOCONV,
__GCONV_NODB,
__GCONV_NOMEM,
__GCONV_EMPTY_INPUT,
__GCONV_FULL_OUTPUT,
__GCONV_ILLEGAL_INPUT,
__GCONV_INCOMPLETE_INPUT,
__GCONV_ILLEGAL_DESCRIPTOR,
__GCONV_INTERNAL_ERROR
};
enum
{
__GCONV_IS_LAST = 0x0001,
__GCONV_IGNORE_ERRORS = 0x0002
};
struct __gconv_step;
struct __gconv_step_data;
struct __gconv_loaded_object;
struct __gconv_trans_data;
typedef int (*__gconv_fct) (struct __gconv_step *, struct __gconv_step_data *,
__const unsigned char **, __const unsigned char *,
unsigned char **, size_t *, int, int);
typedef wint_t (*__gconv_btowc_fct) (struct __gconv_step *, unsigned char);
typedef int (*__gconv_init_fct) (struct __gconv_step *);
typedef void (*__gconv_end_fct) (struct __gconv_step *);
typedef int (*__gconv_trans_fct) (struct __gconv_step *,
struct __gconv_step_data *, void *,
__const unsigned char *,
__const unsigned char **,
__const unsigned char *, unsigned char **,
size_t *);
typedef int (*__gconv_trans_context_fct) (void *, __const unsigned char *,
__const unsigned char *,
unsigned char *, unsigned char *);
typedef int (*__gconv_trans_query_fct) (__const char *, __const char ***,
size_t *);
typedef int (*__gconv_trans_init_fct) (void **, const char *);
typedef void (*__gconv_trans_end_fct) (void *);
struct __gconv_trans_data
{
__gconv_trans_fct __trans_fct;
__gconv_trans_context_fct __trans_context_fct;
__gconv_trans_end_fct __trans_end_fct;
void *__data;
struct __gconv_trans_data *__next;
};
struct __gconv_step
{
struct __gconv_loaded_object *__shlib_handle;
__const char *__modname;
int __counter;
char *__from_name;
char *__to_name;
__gconv_fct __fct;
__gconv_btowc_fct __btowc_fct;
__gconv_init_fct __init_fct;
__gconv_end_fct __end_fct;
int __min_needed_from;
int __max_needed_from;
int __min_needed_to;
int __max_needed_to;
int __stateful;
void *__data;
};
struct __gconv_step_data
{
unsigned char *__outbuf;
unsigned char *__outbufend;
int __flags;
int __invocation_counter;
int __internal_use;
__mbstate_t *__statep;
__mbstate_t __state;
struct __gconv_trans_data *__trans;
};
typedef struct __gconv_info
{
size_t __nsteps;
struct __gconv_step *__steps;
__extension__ struct __gconv_step_data __data [];
} *__gconv_t;
# 45 "/usr/include/_G_config.h" 2 3 4
typedef union
{
struct __gconv_info __cd;
struct
{
struct __gconv_info __cd;
struct __gconv_step_data __data;
} __combined;
} _G_iconv_t;
typedef int _G_int16_t __attribute__ ((__mode__ (__HI__)));
typedef int _G_int32_t __attribute__ ((__mode__ (__SI__)));
typedef unsigned int _G_uint16_t __attribute__ ((__mode__ (__HI__)));
typedef unsigned int _G_uint32_t __attribute__ ((__mode__ (__SI__)));
# 33 "/usr/include/libio.h" 2 3 4
# 53 "/usr/include/libio.h" 3 4
# 1 "/usr/local/gnu/lib/gcc/i686-pc-linux-gnu/4.4.2/include/stdarg.h" 1 3 4
# 40 "/usr/local/gnu/lib/gcc/i686-pc-linux-gnu/4.4.2/include/stdarg.h" 3 4
typedef __builtin_va_list __gnuc_va_list;
# 54 "/usr/include/libio.h" 2 3 4
# 167 "/usr/include/libio.h" 3 4
struct _IO_jump_t; struct _IO_FILE;
# 177 "/usr/include/libio.h" 3 4
typedef void _IO_lock_t;
struct _IO_marker {
struct _IO_marker *_next;
struct _IO_FILE *_sbuf;
int _pos;
# 200 "/usr/include/libio.h" 3 4
};
enum __codecvt_result
{
__codecvt_ok,
__codecvt_partial,
__codecvt_error,
__codecvt_noconv
};
# 268 "/usr/include/libio.h" 3 4
struct _IO_FILE {
int _flags;
char* _IO_read_ptr;
char* _IO_read_end;
char* _IO_read_base;
char* _IO_write_base;
char* _IO_write_ptr;
char* _IO_write_end;
char* _IO_buf_base;
char* _IO_buf_end;
char *_IO_save_base;
char *_IO_backup_base;
char *_IO_save_end;
struct _IO_marker *_markers;
struct _IO_FILE *_chain;
int _fileno;
int _flags2;
__off_t _old_offset;
unsigned short _cur_column;
signed char _vtable_offset;
char _shortbuf[1];
_IO_lock_t *_lock;
# 316 "/usr/include/libio.h" 3 4
__off64_t _offset;
# 325 "/usr/include/libio.h" 3 4
void *__pad1;
void *__pad2;
void *__pad3;
void *__pad4;
size_t __pad5;
int _mode;
char _unused2[15 * sizeof (int) - 4 * sizeof (void *) - sizeof (size_t)];
};
typedef struct _IO_FILE _IO_FILE;
struct _IO_FILE_plus;
extern struct _IO_FILE_plus _IO_2_1_stdin_;
extern struct _IO_FILE_plus _IO_2_1_stdout_;
extern struct _IO_FILE_plus _IO_2_1_stderr_;
# 361 "/usr/include/libio.h" 3 4
typedef __ssize_t __io_read_fn (void *__cookie, char *__buf, size_t __nbytes);
typedef __ssize_t __io_write_fn (void *__cookie, __const char *__buf,
size_t __n);
typedef int __io_seek_fn (void *__cookie, __off64_t *__pos, int __w);
typedef int __io_close_fn (void *__cookie);
typedef __io_read_fn cookie_read_function_t;
typedef __io_write_fn cookie_write_function_t;
typedef __io_seek_fn cookie_seek_function_t;
typedef __io_close_fn cookie_close_function_t;
typedef struct
{
__io_read_fn *read;
__io_write_fn *write;
__io_seek_fn *seek;
__io_close_fn *close;
} _IO_cookie_io_functions_t;
typedef _IO_cookie_io_functions_t cookie_io_functions_t;
struct _IO_cookie_file;
extern void _IO_cookie_init (struct _IO_cookie_file *__cfile, int __read_write,
void *__cookie, _IO_cookie_io_functions_t __fns);
extern int __underflow (_IO_FILE *);
extern int __uflow (_IO_FILE *);
extern int __overflow (_IO_FILE *, int);
extern wint_t __wunderflow (_IO_FILE *);
extern wint_t __wuflow (_IO_FILE *);
extern wint_t __woverflow (_IO_FILE *, wint_t);
# 451 "/usr/include/libio.h" 3 4
extern int _IO_getc (_IO_FILE *__fp);
extern int _IO_putc (int __c, _IO_FILE *__fp);
extern int _IO_feof (_IO_FILE *__fp) __attribute__ ((__nothrow__));
extern int _IO_ferror (_IO_FILE *__fp) __attribute__ ((__nothrow__));
extern int _IO_peekc_locked (_IO_FILE *__fp);
extern void _IO_flockfile (_IO_FILE *) __attribute__ ((__nothrow__));
extern void _IO_funlockfile (_IO_FILE *) __attribute__ ((__nothrow__));
extern int _IO_ftrylockfile (_IO_FILE *) __attribute__ ((__nothrow__));
# 481 "/usr/include/libio.h" 3 4
extern int _IO_vfscanf (_IO_FILE * __restrict, const char * __restrict,
__gnuc_va_list, int *__restrict);
extern int _IO_vfprintf (_IO_FILE *__restrict, const char *__restrict,
__gnuc_va_list);
extern __ssize_t _IO_padn (_IO_FILE *, int, __ssize_t);
extern size_t _IO_sgetn (_IO_FILE *, void *, size_t);
extern __off64_t _IO_seekoff (_IO_FILE *, __off64_t, int, int);
extern __off64_t _IO_seekpos (_IO_FILE *, __off64_t, int);
extern void _IO_free_backup_area (_IO_FILE *) __attribute__ ((__nothrow__));
# 73 "/usr/include/stdio.h" 2 3 4
typedef __gnuc_va_list va_list;
# 86 "/usr/include/stdio.h" 3 4
typedef _G_fpos64_t fpos_t;
typedef _G_fpos64_t fpos64_t;
# 138 "/usr/include/stdio.h" 3 4
# 1 "/usr/include/bits/stdio_lim.h" 1 3 4
# 139 "/usr/include/stdio.h" 2 3 4
extern struct _IO_FILE *stdin;
extern struct _IO_FILE *stdout;
extern struct _IO_FILE *stderr;
extern int remove (__const char *__filename) __attribute__ ((__nothrow__));
extern int rename (__const char *__old, __const char *__new) __attribute__
((__nothrow__));
extern int renameat (int __oldfd, __const char *__old, int __newfd,
__const char *__new) __attribute__ ((__nothrow__));
# 174 "/usr/include/stdio.h" 3 4
extern FILE *tmpfile (void) __asm__ ("" "tmpfile64");
extern FILE *tmpfile64 (void);
extern char *tmpnam (char *__s) __attribute__ ((__nothrow__));
extern char *tmpnam_r (char *__s) __attribute__ ((__nothrow__));
# 203 "/usr/include/stdio.h" 3 4
extern char *tempnam (__const char *__dir, __const char *__pfx)
__attribute__ ((__nothrow__)) __attribute__ ((__malloc__));
extern int fclose (FILE *__stream);
extern int fflush (FILE *__stream);
# 228 "/usr/include/stdio.h" 3 4
extern int fflush_unlocked (FILE *__stream);
# 238 "/usr/include/stdio.h" 3 4
extern int fcloseall (void);
# 259 "/usr/include/stdio.h" 3 4
extern FILE *fopen (__const char *__restrict __filename, __const char
*__restrict __modes) __asm__ ("" "fopen64");
extern FILE *freopen (__const char *__restrict __filename, __const char
*__restrict __modes, FILE *__restrict __stream) __asm__ ("" "freopen64");
extern FILE *fopen64 (__const char *__restrict __filename,
__const char *__restrict __modes);
extern FILE *freopen64 (__const char *__restrict __filename,
__const char *__restrict __modes,
FILE *__restrict __stream);
extern FILE *fdopen (int __fd, __const char *__modes) __attribute__
((__nothrow__));
extern FILE *fopencookie (void *__restrict __magic_cookie,
__const char *__restrict __modes,
_IO_cookie_io_functions_t __io_funcs) __attribute__ ((__nothrow__));
extern FILE *fmemopen (void *__s, size_t __len, __const char *__modes)
__attribute__ ((__nothrow__));
extern FILE *open_memstream (char **__bufloc, size_t *__sizeloc) __attribute__
((__nothrow__));
extern void setbuf (FILE *__restrict __stream, char *__restrict __buf)
__attribute__ ((__nothrow__));
extern int setvbuf (FILE *__restrict __stream, char *__restrict __buf,
int __modes, size_t __n) __attribute__ ((__nothrow__));
extern void setbuffer (FILE *__restrict __stream, char *__restrict __buf,
size_t __size) __attribute__ ((__nothrow__));
extern void setlinebuf (FILE *__stream) __attribute__ ((__nothrow__));
extern int fprintf (FILE *__restrict __stream,
__const char *__restrict __format, ...);
extern int printf (__const char *__restrict __format, ...);
extern int sprintf (char *__restrict __s,
__const char *__restrict __format, ...) __attribute__ ((__nothrow__));
extern int vfprintf (FILE *__restrict __s, __const char *__restrict __format,
__gnuc_va_list __arg);
extern int vprintf (__const char *__restrict __format, __gnuc_va_list __arg);
extern int vsprintf (char *__restrict __s, __const char *__restrict __format,
__gnuc_va_list __arg) __attribute__ ((__nothrow__));
extern int snprintf (char *__restrict __s, size_t __maxlen,
__const char *__restrict __format, ...)
__attribute__ ((__nothrow__)) __attribute__ ((__format__ (__printf__, 3,
4)));
extern int vsnprintf (char *__restrict __s, size_t __maxlen,
__const char *__restrict __format, __gnuc_va_list __arg)
__attribute__ ((__nothrow__)) __attribute__ ((__format__ (__printf__, 3,
0)));
extern int vasprintf (char **__restrict __ptr, __const char *__restrict __f,
__gnuc_va_list __arg)
__attribute__ ((__nothrow__)) __attribute__ ((__format__ (__printf__, 2,
0)));
extern int __asprintf (char **__restrict __ptr,
__const char *__restrict __fmt, ...)
__attribute__ ((__nothrow__)) __attribute__ ((__format__ (__printf__, 2,
3)));
extern int asprintf (char **__restrict __ptr,
__const char *__restrict __fmt, ...)
__attribute__ ((__nothrow__)) __attribute__ ((__format__ (__printf__, 2,
3)));
extern int vdprintf (int __fd, __const char *__restrict __fmt,
__gnuc_va_list __arg)
__attribute__ ((__format__ (__printf__, 2, 0)));
extern int dprintf (int __fd, __const char *__restrict __fmt, ...)
__attribute__ ((__format__ (__printf__, 2, 3)));
extern int fscanf (FILE *__restrict __stream,
__const char *__restrict __format, ...) ;
extern int scanf (__const char *__restrict __format, ...) ;
extern int sscanf (__const char *__restrict __s,
__const char *__restrict __format, ...) __attribute__ ((__nothrow__));
extern int vfscanf (FILE *__restrict __s, __const char *__restrict __format,
__gnuc_va_list __arg)
__attribute__ ((__format__ (__scanf__, 2, 0))) ;
extern int vscanf (__const char *__restrict __format, __gnuc_va_list __arg)
__attribute__ ((__format__ (__scanf__, 1, 0))) ;
extern int vsscanf (__const char *__restrict __s,
__const char *__restrict __format, __gnuc_va_list __arg)
__attribute__ ((__nothrow__)) __attribute__ ((__format__ (__scanf__, 2,
0)));
extern int fgetc (FILE *__stream);
extern int getc (FILE *__stream);
extern int getchar (void);
# 460 "/usr/include/stdio.h" 3 4
extern int getc_unlocked (FILE *__stream);
extern int getchar_unlocked (void);
# 471 "/usr/include/stdio.h" 3 4
extern int fgetc_unlocked (FILE *__stream);
extern int fputc (int __c, FILE *__stream);
extern int putc (int __c, FILE *__stream);
extern int putchar (int __c);
# 504 "/usr/include/stdio.h" 3 4
extern int fputc_unlocked (int __c, FILE *__stream);
extern int putc_unlocked (int __c, FILE *__stream);
extern int putchar_unlocked (int __c);
extern int getw (FILE *__stream);
extern int putw (int __w, FILE *__stream);
extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream)
;
extern char *gets (char *__s) ;
# 550 "/usr/include/stdio.h" 3 4
extern char *fgets_unlocked (char *__restrict __s, int __n,
FILE *__restrict __stream) ;
# 566 "/usr/include/stdio.h" 3 4
extern __ssize_t __getdelim (char **__restrict __lineptr,
size_t *__restrict __n, int __delimiter,
FILE *__restrict __stream) ;
extern __ssize_t getdelim (char **__restrict __lineptr,
size_t *__restrict __n, int __delimiter,
FILE *__restrict __stream) ;
extern __ssize_t getline (char **__restrict __lineptr,
size_t *__restrict __n,
FILE *__restrict __stream) ;
extern int fputs (__const char *__restrict __s, FILE *__restrict __stream);
extern int puts (__const char *__s);
extern int ungetc (int __c, FILE *__stream);
extern size_t fread (void *__restrict __ptr, size_t __size,
size_t __n, FILE *__restrict __stream) ;
extern size_t fwrite (__const void *__restrict __ptr, size_t __size,
size_t __n, FILE *__restrict __s) ;
# 627 "/usr/include/stdio.h" 3 4
extern int fputs_unlocked (__const char *__restrict __s,
FILE *__restrict __stream);
# 638 "/usr/include/stdio.h" 3 4
extern size_t fread_unlocked (void *__restrict __ptr, size_t __size,
size_t __n, FILE *__restrict __stream) ;
extern size_t fwrite_unlocked (__const void *__restrict __ptr, size_t __size,
size_t __n, FILE *__restrict __stream) ;
extern int fseek (FILE *__stream, long int __off, int __whence);
extern long int ftell (FILE *__stream) ;
extern void rewind (FILE *__stream);
# 682 "/usr/include/stdio.h" 3 4
extern int fseeko (FILE *__stream, __off64_t __off, int __whence) __asm__ (""
"fseeko64");
extern __off64_t ftello (FILE *__stream) __asm__ ("" "ftello64");
# 707 "/usr/include/stdio.h" 3 4
extern int fgetpos (FILE *__restrict __stream, fpos_t *__restrict __pos)
__asm__ ("" "fgetpos64");
extern int fsetpos (FILE *__stream, __const fpos_t *__pos) __asm__ (""
"fsetpos64");
extern int fseeko64 (FILE *__stream, __off64_t __off, int __whence);
extern __off64_t ftello64 (FILE *__stream) ;
extern int fgetpos64 (FILE *__restrict __stream, fpos64_t *__restrict __pos);
extern int fsetpos64 (FILE *__stream, __const fpos64_t *__pos);
extern void clearerr (FILE *__stream) __attribute__ ((__nothrow__));
extern int feof (FILE *__stream) __attribute__ ((__nothrow__)) ;
extern int ferror (FILE *__stream) __attribute__ ((__nothrow__)) ;
extern void clearerr_unlocked (FILE *__stream) __attribute__ ((__nothrow__));
extern int feof_unlocked (FILE *__stream) __attribute__ ((__nothrow__)) ;
extern int ferror_unlocked (FILE *__stream) __attribute__ ((__nothrow__)) ;
extern void perror (__const char *__s);
# 1 "/usr/include/bits/sys_errlist.h" 1 3 4
# 27 "/usr/include/bits/sys_errlist.h" 3 4
extern int sys_nerr;
extern __const char *__const sys_errlist[];
extern int _sys_nerr;
extern __const char *__const _sys_errlist[];
# 755 "/usr/include/stdio.h" 2 3 4
extern int fileno (FILE *__stream) __attribute__ ((__nothrow__)) ;
extern int fileno_unlocked (FILE *__stream) __attribute__ ((__nothrow__)) ;
# 774 "/usr/include/stdio.h" 3 4
extern FILE *popen (__const char *__command, __const char *__modes) ;
extern int pclose (FILE *__stream);
extern char *ctermid (char *__s) __attribute__ ((__nothrow__));
extern char *cuserid (char *__s);
struct obstack;
extern int obstack_printf (struct obstack *__restrict __obstack,
__const char *__restrict __format, ...)
__attribute__ ((__nothrow__)) __attribute__ ((__format__ (__printf__, 2,
3)));
extern int obstack_vprintf (struct obstack *__restrict __obstack,
__const char *__restrict __format,
__gnuc_va_list __args)
__attribute__ ((__nothrow__)) __attribute__ ((__format__ (__printf__, 2,
0)));
extern void flockfile (FILE *__stream) __attribute__ ((__nothrow__));
extern int ftrylockfile (FILE *__stream) __attribute__ ((__nothrow__)) ;
extern void funlockfile (FILE *__stream) __attribute__ ((__nothrow__));
# 835 "/usr/include/stdio.h" 3 4
# 1 "/usr/include/bits/stdio.h" 1 3 4
# 33 "/usr/include/bits/stdio.h" 3 4
extern __inline int
vprintf (__const char *__restrict __fmt, __gnuc_va_list __arg)
{
return vfprintf (stdout, __fmt, __arg);
}
extern __inline int
getchar (void)
{
return _IO_getc (stdin);
}
extern __inline int
fgetc_unlocked (FILE *__fp)
{
return (__builtin_expect (((__fp)->_IO_read_ptr >= (__fp)->_IO_read_end), 0)
? __uflow (__fp) : *(unsigned char *) (__fp)->_IO_read_ptr++);
}
extern __inline int
getc_unlocked (FILE *__fp)
{
return (__builtin_expect (((__fp)->_IO_read_ptr >= (__fp)->_IO_read_end), 0)
? __uflow (__fp) : *(unsigned char *) (__fp)->_IO_read_ptr++);
}
extern __inline int
getchar_unlocked (void)
{
return (__builtin_expect (((stdin)->_IO_read_ptr >= (stdin)->_IO_read_end),
0) ? __uflow (stdin) : *(unsigned char *) (stdin)->_IO_read_ptr++);
}
extern __inline int
putchar (int __c)
{
return _IO_putc (__c, stdout);
}
extern __inline int
fputc_unlocked (int __c, FILE *__stream)
{
return (__builtin_expect (((__stream)->_IO_write_ptr >=
(__stream)->_IO_write_end), 0) ? __overflow (__stream, (unsigned char) (__c)) :
(unsigned char) (*(__stream)->_IO_write_ptr++ = (__c)));
}
extern __inline int
putc_unlocked (int __c, FILE *__stream)
{
return (__builtin_expect (((__stream)->_IO_write_ptr >=
(__stream)->_IO_write_end), 0) ? __overflow (__stream, (unsigned char) (__c)) :
(unsigned char) (*(__stream)->_IO_write_ptr++ = (__c)));
}
extern __inline int
putchar_unlocked (int __c)
{
return (__builtin_expect (((stdout)->_IO_write_ptr >=
(stdout)->_IO_write_end), 0) ? __overflow (stdout, (unsigned char) (__c)) :
(unsigned char) (*(stdout)->_IO_write_ptr++ = (__c)));
}
extern __inline __ssize_t
getline (char **__lineptr, size_t *__n, FILE *__stream)
{
return __getdelim (__lineptr, __n, '\n', __stream);
}
extern __inline int
__attribute__ ((__nothrow__)) feof_unlocked (FILE *__stream)
{
return (((__stream)->_flags & 0x10) != 0);
}
extern __inline int
__attribute__ ((__nothrow__)) ferror_unlocked (FILE *__stream)
{
return (((__stream)->_flags & 0x20) != 0);
}
# 836 "/usr/include/stdio.h" 2 3 4
# 844 "/usr/include/stdio.h" 3 4
# 270 "conftest.c" 2
# 1 "/usr/include/string.h" 1 3 4
# 28 "/usr/include/string.h" 3 4
# 1 "/usr/local/gnu/lib/gcc/i686-pc-linux-gnu/4.4.2/include/stddef.h" 1 3 4
# 34 "/usr/include/string.h" 2 3 4
extern void *memcpy (void *__restrict __dest,
__const void *__restrict __src, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2)));
extern void *memmove (void *__dest, __const void *__src, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2)));
extern void *memccpy (void *__restrict __dest, __const void *__restrict __src,
int __c, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2)));
extern void *memset (void *__s, int __c, size_t __n) __attribute__
((__nothrow__)) __attribute__ ((__nonnull__ (1)));
extern int memcmp (__const void *__s1, __const void *__s2, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1, 2)));
extern void *memchr (__const void *__s, int __c, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1)));
extern void *rawmemchr (__const void *__s, int __c)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1)));
extern void *memrchr (__const void *__s, int __c, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1)));
extern char *strcpy (char *__restrict __dest, __const char *__restrict __src)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2)));
extern char *strncpy (char *__restrict __dest,
__const char *__restrict __src, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2)));
extern char *strcat (char *__restrict __dest, __const char *__restrict __src)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2)));
extern char *strncat (char *__restrict __dest, __const char *__restrict __src,
size_t __n) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__
(1, 2)));
extern int strcmp (__const char *__s1, __const char *__s2)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1, 2)));
extern int strncmp (__const char *__s1, __const char *__s2, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1, 2)));
extern int strcoll (__const char *__s1, __const char *__s2)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1, 2)));
extern size_t strxfrm (char *__restrict __dest,
__const char *__restrict __src, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (2)));
# 121 "/usr/include/string.h" 3 4
extern int strcoll_l (__const char *__s1, __const char *__s2, __locale_t __l)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1, 2, 3)));
extern size_t strxfrm_l (char *__dest, __const char *__src, size_t __n,
__locale_t __l) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__
(2, 4)));
extern char *strdup (__const char *__s)
__attribute__ ((__nothrow__)) __attribute__ ((__malloc__)) __attribute__
((__nonnull__ (1)));
extern char *strndup (__const char *__string, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__malloc__)) __attribute__
((__nonnull__ (1)));
# 165 "/usr/include/string.h" 3 4
extern char *strchr (__const char *__s, int __c)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1)));
extern char *strrchr (__const char *__s, int __c)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1)));
extern char *strchrnul (__const char *__s, int __c)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1)));
extern size_t strcspn (__const char *__s, __const char *__reject)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1, 2)));
extern size_t strspn (__const char *__s, __const char *__accept)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1, 2)));
extern char *strpbrk (__const char *__s, __const char *__accept)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1, 2)));
extern char *strstr (__const char *__haystack, __const char *__needle)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1, 2)));
extern char *strtok (char *__restrict __s, __const char *__restrict __delim)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (2)));
extern char *__strtok_r (char *__restrict __s,
__const char *__restrict __delim,
char **__restrict __save_ptr)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (2, 3)));
extern char *strtok_r (char *__restrict __s, __const char *__restrict __delim,
char **__restrict __save_ptr)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (2, 3)));
extern char *strcasestr (__const char *__haystack, __const char *__needle)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1, 2)));
extern void *memmem (__const void *__haystack, size_t __haystacklen,
__const void *__needle, size_t __needlelen)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1, 3)));
extern void *__mempcpy (void *__restrict __dest,
__const void *__restrict __src, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2)));
extern void *mempcpy (void *__restrict __dest,
__const void *__restrict __src, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2)));
extern size_t strlen (__const char *__s)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1)));
extern size_t strnlen (__const char *__string, size_t __maxlen)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1)));
extern char *strerror (int __errnum) __attribute__ ((__nothrow__));
# 281 "/usr/include/string.h" 3 4
extern char *strerror_r (int __errnum, char *__buf, size_t __buflen)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (2)));
extern void __bzero (void *__s, size_t __n) __attribute__ ((__nothrow__))
__attribute__ ((__nonnull__ (1)));
extern void bcopy (__const void *__src, void *__dest, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2)));
extern void bzero (void *__s, size_t __n) __attribute__ ((__nothrow__))
__attribute__ ((__nonnull__ (1)));
extern int bcmp (__const void *__s1, __const void *__s2, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1, 2)));
extern char *index (__const char *__s, int __c)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1)));
extern char *rindex (__const char *__s, int __c)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1)));
extern int ffs (int __i) __attribute__ ((__nothrow__)) __attribute__
((__const__));
extern int ffsl (long int __l) __attribute__ ((__nothrow__)) __attribute__
((__const__));
__extension__ extern int ffsll (long long int __ll)
__attribute__ ((__nothrow__)) __attribute__ ((__const__));
extern int strcasecmp (__const char *__s1, __const char *__s2)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1, 2)));
extern int strncasecmp (__const char *__s1, __const char *__s2, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1, 2)));
extern int strcasecmp_l (__const char *__s1, __const char *__s2,
__locale_t __loc)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1, 2, 3)));
extern int strncasecmp_l (__const char *__s1, __const char *__s2,
size_t __n, __locale_t __loc)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1, 2, 4)));
extern char *strsep (char **__restrict __stringp,
__const char *__restrict __delim)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2)));
extern int strverscmp (__const char *__s1, __const char *__s2)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__)) __attribute__
((__nonnull__ (1, 2)));
extern char *strsignal (int __sig) __attribute__ ((__nothrow__));
extern char *__stpcpy (char *__restrict __dest, __const char *__restrict __src)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2)));
extern char *stpcpy (char *__restrict __dest, __const char *__restrict __src)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2)));
extern char *__stpncpy (char *__restrict __dest,
__const char *__restrict __src, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2)));
extern char *stpncpy (char *__restrict __dest,
__const char *__restrict __src, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2)));
extern char *strfry (char *__string) __attribute__ ((__nothrow__))
__attribute__ ((__nonnull__ (1)));
extern void *memfrob (void *__s, size_t __n) __attribute__ ((__nothrow__))
__attribute__ ((__nonnull__ (1)));
extern char *basename (__const char *__filename) __attribute__ ((__nothrow__))
__attribute__ ((__nonnull__ (1)));
# 414 "/usr/include/string.h" 3 4
# 1 "/usr/include/bits/string.h" 1 3 4
# 415 "/usr/include/string.h" 2 3 4
# 1 "/usr/include/bits/string2.h" 1 3 4
# 52 "/usr/include/bits/string2.h" 3 4
# 1 "/usr/include/endian.h" 1 3 4
# 37 "/usr/include/endian.h" 3 4
# 1 "/usr/include/bits/endian.h" 1 3 4
# 38 "/usr/include/endian.h" 2 3 4
# 53 "/usr/include/bits/string2.h" 2 3 4
# 394 "/usr/include/bits/string2.h" 3 4
extern void *__rawmemchr (const void *__s, int __c);
# 969 "/usr/include/bits/string2.h" 3 4
extern __inline size_t __strcspn_c1 (__const char *__s, int __reject);
extern __inline size_t
__strcspn_c1 (__const char *__s, int __reject)
{
register size_t __result = 0;
while (__s[__result] != '\0' && __s[__result] != __reject)
++__result;
return __result;
}
extern __inline size_t __strcspn_c2 (__const char *__s, int __reject1,
int __reject2);
extern __inline size_t
__strcspn_c2 (__const char *__s, int __reject1, int __reject2)
{
register size_t __result = 0;
while (__s[__result] != '\0' && __s[__result] != __reject1
&& __s[__result] != __reject2)
++__result;
return __result;
}
extern __inline size_t __strcspn_c3 (__const char *__s, int __reject1,
int __reject2, int __reject3);
extern __inline size_t
__strcspn_c3 (__const char *__s, int __reject1, int __reject2,
int __reject3)
{
register size_t __result = 0;
while (__s[__result] != '\0' && __s[__result] != __reject1
&& __s[__result] != __reject2 && __s[__result] != __reject3)
++__result;
return __result;
}
# 1045 "/usr/include/bits/string2.h" 3 4
extern __inline size_t __strspn_c1 (__const char *__s, int __accept);
extern __inline size_t
__strspn_c1 (__const char *__s, int __accept)
{
register size_t __result = 0;
while (__s[__result] == __accept)
++__result;
return __result;
}
extern __inline size_t __strspn_c2 (__const char *__s, int __accept1,
int __accept2);
extern __inline size_t
__strspn_c2 (__const char *__s, int __accept1, int __accept2)
{
register size_t __result = 0;
while (__s[__result] == __accept1 || __s[__result] == __accept2)
++__result;
return __result;
}
extern __inline size_t __strspn_c3 (__const char *__s, int __accept1,
int __accept2, int __accept3);
extern __inline size_t
__strspn_c3 (__const char *__s, int __accept1, int __accept2, int __accept3)
{
register size_t __result = 0;
while (__s[__result] == __accept1 || __s[__result] == __accept2
|| __s[__result] == __accept3)
++__result;
return __result;
}
# 1121 "/usr/include/bits/string2.h" 3 4
extern __inline char *__strpbrk_c2 (__const char *__s, int __accept1,
int __accept2);
extern __inline char *
__strpbrk_c2 (__const char *__s, int __accept1, int __accept2)
{
while (*__s != '\0' && *__s != __accept1 && *__s != __accept2)
++__s;
return *__s == '\0' ? ((void *)0) : (char *) (size_t) __s;
}
extern __inline char *__strpbrk_c3 (__const char *__s, int __accept1,
int __accept2, int __accept3);
extern __inline char *
__strpbrk_c3 (__const char *__s, int __accept1, int __accept2,
int __accept3)
{
while (*__s != '\0' && *__s != __accept1 && *__s != __accept2
&& *__s != __accept3)
++__s;
return *__s == '\0' ? ((void *)0) : (char *) (size_t) __s;
}
# 1173 "/usr/include/bits/string2.h" 3 4
extern __inline char *__strtok_r_1c (char *__s, char __sep, char **__nextp);
extern __inline char *
__strtok_r_1c (char *__s, char __sep, char **__nextp)
{
char *__result;
if (__s == ((void *)0))
__s = *__nextp;
while (*__s == __sep)
++__s;
__result = ((void *)0);
if (*__s != '\0')
{
__result = __s++;
while (*__s != '\0')
if (*__s++ == __sep)
{
__s[-1] = '\0';
break;
}
*__nextp = __s;
}
return __result;
}
# 1205 "/usr/include/bits/string2.h" 3 4
extern char *__strsep_g (char **__stringp, __const char *__delim);
# 1223 "/usr/include/bits/string2.h" 3 4
extern __inline char *__strsep_1c (char **__s, char __reject);
extern __inline char *
__strsep_1c (char **__s, char __reject)
{
register char *__retval = *__s;
if (__retval != ((void *)0) && (*__s = (__extension__ (__builtin_constant_p
(__reject) && !__builtin_constant_p (__retval) && (__reject) == '\0' ? (char *)
__rawmemchr (__retval, __reject) : __builtin_strchr (__retval, __reject)))) !=
((void *)0))
*(*__s)++ = '\0';
return __retval;
}
extern __inline char *__strsep_2c (char **__s, char __reject1, char __reject2);
extern __inline char *
__strsep_2c (char **__s, char __reject1, char __reject2)
{
register char *__retval = *__s;
if (__retval != ((void *)0))
{
register char *__cp = __retval;
while (1)
{
if (*__cp == '\0')
{
__cp = ((void *)0);
break;
}
if (*__cp == __reject1 || *__cp == __reject2)
{
*__cp++ = '\0';
break;
}
++__cp;
}
*__s = __cp;
}
return __retval;
}
extern __inline char *__strsep_3c (char **__s, char __reject1, char __reject2,
char __reject3);
extern __inline char *
__strsep_3c (char **__s, char __reject1, char __reject2, char __reject3)
{
register char *__retval = *__s;
if (__retval != ((void *)0))
{
register char *__cp = __retval;
while (1)
{
if (*__cp == '\0')
{
__cp = ((void *)0);
break;
}
if (*__cp == __reject1 || *__cp == __reject2 || *__cp == __reject3)
{
*__cp++ = '\0';
break;
}
++__cp;
}
*__s = __cp;
}
return __retval;
}
# 1299 "/usr/include/bits/string2.h" 3 4
# 1 "/usr/include/stdlib.h" 1 3 4
# 33 "/usr/include/stdlib.h" 3 4
# 1 "/usr/local/gnu/lib/gcc/i686-pc-linux-gnu/4.4.2/include/stddef.h" 1 3 4
# 34 "/usr/include/stdlib.h" 2 3 4
# 587 "/usr/include/stdlib.h" 3 4
extern void *malloc (size_t __size) __attribute__ ((__nothrow__)) __attribute__
((__malloc__)) ;
extern void *calloc (size_t __nmemb, size_t __size)
__attribute__ ((__nothrow__)) __attribute__ ((__malloc__)) ;
# 977 "/usr/include/stdlib.h" 3 4
# 1300 "/usr/include/bits/string2.h" 2 3 4
extern char *__strdup (__const char *__string) __attribute__ ((__nothrow__))
__attribute__ ((__malloc__));
# 1323 "/usr/include/bits/string2.h" 3 4
extern char *__strndup (__const char *__string, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__malloc__));
# 418 "/usr/include/string.h" 2 3 4
# 426 "/usr/include/string.h" 3 4
# 271 "conftest.c" 2
# 1 "/usr/include/wchar.h" 1 3 4
# 40 "/usr/include/wchar.h" 3 4
# 1 "/usr/local/gnu/lib/gcc/i686-pc-linux-gnu/4.4.2/include/stdarg.h" 1 3 4
# 41 "/usr/include/wchar.h" 2 3 4
# 1 "/usr/local/gnu/lib/gcc/i686-pc-linux-gnu/4.4.2/include/stddef.h" 1 3 4
# 49 "/usr/include/wchar.h" 2 3 4
# 93 "/usr/include/wchar.h" 3 4
typedef __mbstate_t mbstate_t;
# 118 "/usr/include/wchar.h" 3 4
struct tm;
extern wchar_t *wcscpy (wchar_t *__restrict __dest,
__const wchar_t *__restrict __src) __attribute__ ((__nothrow__));
extern wchar_t *wcsncpy (wchar_t *__restrict __dest,
__const wchar_t *__restrict __src, size_t __n)
__attribute__ ((__nothrow__));
extern wchar_t *wcscat (wchar_t *__restrict __dest,
__const wchar_t *__restrict __src) __attribute__ ((__nothrow__));
extern wchar_t *wcsncat (wchar_t *__restrict __dest,
__const wchar_t *__restrict __src, size_t __n)
__attribute__ ((__nothrow__));
extern int wcscmp (__const wchar_t *__s1, __const wchar_t *__s2)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__));
extern int wcsncmp (__const wchar_t *__s1, __const wchar_t *__s2, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__));
extern int wcscasecmp (__const wchar_t *__s1, __const wchar_t *__s2)
__attribute__ ((__nothrow__));
extern int wcsncasecmp (__const wchar_t *__s1, __const wchar_t *__s2,
size_t __n) __attribute__ ((__nothrow__));
extern int wcscasecmp_l (__const wchar_t *__s1, __const wchar_t *__s2,
__locale_t __loc) __attribute__ ((__nothrow__));
extern int wcsncasecmp_l (__const wchar_t *__s1, __const wchar_t *__s2,
size_t __n, __locale_t __loc) __attribute__ ((__nothrow__));
extern int wcscoll (__const wchar_t *__s1, __const wchar_t *__s2) __attribute__
((__nothrow__));
extern size_t wcsxfrm (wchar_t *__restrict __s1,
__const wchar_t *__restrict __s2, size_t __n) __attribute__
((__nothrow__));
extern int wcscoll_l (__const wchar_t *__s1, __const wchar_t *__s2,
__locale_t __loc) __attribute__ ((__nothrow__));
extern size_t wcsxfrm_l (wchar_t *__s1, __const wchar_t *__s2,
size_t __n, __locale_t __loc) __attribute__ ((__nothrow__));
extern wchar_t *wcsdup (__const wchar_t *__s) __attribute__ ((__nothrow__))
__attribute__ ((__malloc__));
extern wchar_t *wcschr (__const wchar_t *__wcs, wchar_t __wc)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__));
extern wchar_t *wcsrchr (__const wchar_t *__wcs, wchar_t __wc)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__));
extern wchar_t *wcschrnul (__const wchar_t *__s, wchar_t __wc)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__));
extern size_t wcscspn (__const wchar_t *__wcs, __const wchar_t *__reject)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__));
extern size_t wcsspn (__const wchar_t *__wcs, __const wchar_t *__accept)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__));
extern wchar_t *wcspbrk (__const wchar_t *__wcs, __const wchar_t *__accept)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__));
extern wchar_t *wcsstr (__const wchar_t *__haystack, __const wchar_t *__needle)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__));
extern wchar_t *wcstok (wchar_t *__restrict __s,
__const wchar_t *__restrict __delim,
wchar_t **__restrict __ptr) __attribute__ ((__nothrow__));
extern size_t wcslen (__const wchar_t *__s) __attribute__ ((__nothrow__))
__attribute__ ((__pure__));
extern wchar_t *wcswcs (__const wchar_t *__haystack, __const wchar_t *__needle)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__));
extern size_t wcsnlen (__const wchar_t *__s, size_t __maxlen)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__));
extern wchar_t *wmemchr (__const wchar_t *__s, wchar_t __c, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__));
extern int wmemcmp (__const wchar_t *__restrict __s1,
__const wchar_t *__restrict __s2, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__pure__));
extern wchar_t *wmemcpy (wchar_t *__restrict __s1,
__const wchar_t *__restrict __s2, size_t __n) __attribute__
((__nothrow__));
extern wchar_t *wmemmove (wchar_t *__s1, __const wchar_t *__s2, size_t __n)
__attribute__ ((__nothrow__));
extern wchar_t *wmemset (wchar_t *__s, wchar_t __c, size_t __n) __attribute__
((__nothrow__));
extern wchar_t *wmempcpy (wchar_t *__restrict __s1,
__const wchar_t *__restrict __s2, size_t __n)
__attribute__ ((__nothrow__));
extern wint_t btowc (int __c) __attribute__ ((__nothrow__));
extern int wctob (wint_t __c) __attribute__ ((__nothrow__));
extern int mbsinit (__const mbstate_t *__ps) __attribute__ ((__nothrow__))
__attribute__ ((__pure__));
extern size_t mbrtowc (wchar_t *__restrict __pwc,
__const char *__restrict __s, size_t __n,
mbstate_t *__p) __attribute__ ((__nothrow__));
extern size_t wcrtomb (char *__restrict __s, wchar_t __wc,
mbstate_t *__restrict __ps) __attribute__ ((__nothrow__));
extern size_t __mbrlen (__const char *__restrict __s, size_t __n,
mbstate_t *__restrict __ps) __attribute__ ((__nothrow__));
extern size_t mbrlen (__const char *__restrict __s, size_t __n,
mbstate_t *__restrict __ps) __attribute__ ((__nothrow__));
# 328 "/usr/include/wchar.h" 3 4
extern wint_t __btowc_alias (int __c) __asm ("btowc");
extern __inline wint_t
__attribute__ ((__nothrow__)) btowc (int __c)
{ return (__builtin_constant_p (__c) && __c >= '\0' && __c <= '\x7f'
? (wint_t) __c : __btowc_alias (__c)); }
extern int __wctob_alias (wint_t __c) __asm ("wctob");
extern __inline int
__attribute__ ((__nothrow__)) wctob (wint_t __wc)
{ return (__builtin_constant_p (__wc) && __wc >= L'\0' && __wc <= L'\x7f'
? (int) __wc : __wctob_alias (__wc)); }
extern __inline size_t
__attribute__ ((__nothrow__)) mbrlen (__const char *__restrict __s, size_t __n,
mbstate_t *__restrict __ps)
{ return (__ps != ((void *)0)
? mbrtowc (((void *)0), __s, __n, __ps) : __mbrlen (__s, __n, ((void *)0)));
}
extern size_t mbsrtowcs (wchar_t *__restrict __dst,
__const char **__restrict __src, size_t __len,
mbstate_t *__restrict __ps) __attribute__ ((__nothrow__));
extern size_t wcsrtombs (char *__restrict __dst,
__const wchar_t **__restrict __src, size_t __len,
mbstate_t *__restrict __ps) __attribute__ ((__nothrow__));
extern size_t mbsnrtowcs (wchar_t *__restrict __dst,
__const char **__restrict __src, size_t __nmc,
size_t __len, mbstate_t *__restrict __ps) __attribute__ ((__nothrow__));
extern size_t wcsnrtombs (char *__restrict __dst,
__const wchar_t **__restrict __src,
size_t __nwc, size_t __len,
mbstate_t *__restrict __ps) __attribute__ ((__nothrow__));
extern int wcwidth (wchar_t __c) __attribute__ ((__nothrow__));
extern int wcswidth (__const wchar_t *__s, size_t __n) __attribute__
((__nothrow__));
extern double wcstod (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr) __attribute__ ((__nothrow__));
extern float wcstof (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr) __attribute__ ((__nothrow__));
extern long double wcstold (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr) __attribute__ ((__nothrow__));
extern long int wcstol (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr, int __base) __attribute__ ((__nothrow__));
extern unsigned long int wcstoul (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr, int __base)
__attribute__ ((__nothrow__));
__extension__
extern long long int wcstoll (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr, int __base)
__attribute__ ((__nothrow__));
__extension__
extern unsigned long long int wcstoull (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
int __base) __attribute__ ((__nothrow__));
__extension__
extern long long int wcstoq (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr, int __base)
__attribute__ ((__nothrow__));
__extension__
extern unsigned long long int wcstouq (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
int __base) __attribute__ ((__nothrow__));
# 467 "/usr/include/wchar.h" 3 4
extern long int wcstol_l (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr, int __base,
__locale_t __loc) __attribute__ ((__nothrow__));
extern unsigned long int wcstoul_l (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
int __base, __locale_t __loc) __attribute__ ((__nothrow__));
__extension__
extern long long int wcstoll_l (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
int __base, __locale_t __loc) __attribute__ ((__nothrow__));
__extension__
extern unsigned long long int wcstoull_l (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
int __base, __locale_t __loc)
__attribute__ ((__nothrow__));
extern double wcstod_l (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr, __locale_t __loc)
__attribute__ ((__nothrow__));
extern float wcstof_l (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr, __locale_t __loc)
__attribute__ ((__nothrow__));
extern long double wcstold_l (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
__locale_t __loc) __attribute__ ((__nothrow__));
extern double __wcstod_internal (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr, int __group)
__attribute__ ((__nothrow__));
extern float __wcstof_internal (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr, int __group)
__attribute__ ((__nothrow__));
extern long double __wcstold_internal (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
int __group) __attribute__ ((__nothrow__));
extern long int __wcstol_internal (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
int __base, int __group) __attribute__ ((__nothrow__));
extern unsigned long int __wcstoul_internal (__const wchar_t *__restrict __npt,
wchar_t **__restrict __endptr,
int __base, int __group) __attribute__ ((__nothrow__));
__extension__
extern long long int __wcstoll_internal (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
int __base, int __group) __attribute__ ((__nothrow__));
__extension__
extern unsigned long long int __wcstoull_internal (__const wchar_t *
__restrict __nptr,
wchar_t **
__restrict __endptr,
int __base,
int __group) __attribute__ ((__nothrow__));
extern __inline double
__attribute__ ((__nothrow__)) wcstod (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr)
{ return __wcstod_internal (__nptr, __endptr, 0); }
extern __inline long int
__attribute__ ((__nothrow__)) wcstol (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr, int __base)
{ return __wcstol_internal (__nptr, __endptr, __base, 0); }
extern __inline unsigned long int
__attribute__ ((__nothrow__)) wcstoul (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr, int __base)
{ return __wcstoul_internal (__nptr, __endptr, __base, 0); }
extern __inline float
__attribute__ ((__nothrow__)) wcstof (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr)
{ return __wcstof_internal (__nptr, __endptr, 0); }
extern __inline long double
__attribute__ ((__nothrow__)) wcstold (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr)
{ return __wcstold_internal (__nptr, __endptr, 0); }
__extension__
extern __inline long long int
__attribute__ ((__nothrow__)) wcstoq (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr, int __base)
{ return __wcstoll_internal (__nptr, __endptr, __base, 0); }
__extension__
extern __inline unsigned long long int
__attribute__ ((__nothrow__)) wcstouq (__const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr, int __base)
{ return __wcstoull_internal (__nptr, __endptr, __base, 0); }
extern wchar_t *wcpcpy (wchar_t *__dest, __const wchar_t *__src) __attribute__
((__nothrow__));
extern wchar_t *wcpncpy (wchar_t *__dest, __const wchar_t *__src, size_t __n)
__attribute__ ((__nothrow__));
# 607 "/usr/include/wchar.h" 3 4
extern __FILE *open_wmemstream (wchar_t **__bufloc, size_t *__sizeloc)
__attribute__ ((__nothrow__));
extern int fwide (__FILE *__fp, int __mode) __attribute__ ((__nothrow__));
extern int fwprintf (__FILE *__restrict __stream,
__const wchar_t *__restrict __format, ...)
;
extern int wprintf (__const wchar_t *__restrict __format, ...)
;
extern int swprintf (wchar_t *__restrict __s, size_t __n,
__const wchar_t *__restrict __format, ...)
__attribute__ ((__nothrow__)) ;
extern int vfwprintf (__FILE *__restrict __s,
__const wchar_t *__restrict __format,
__gnuc_va_list __arg)
;
extern int vwprintf (__const wchar_t *__restrict __format,
__gnuc_va_list __arg)
;
extern int vswprintf (wchar_t *__restrict __s, size_t __n,
__const wchar_t *__restrict __format,
__gnuc_va_list __arg)
__attribute__ ((__nothrow__)) ;
extern int fwscanf (__FILE *__restrict __stream,
__const wchar_t *__restrict __format, ...)
;
extern int wscanf (__const wchar_t *__restrict __format, ...)
;
extern int swscanf (__const wchar_t *__restrict __s,
__const wchar_t *__restrict __format, ...)
__attribute__ ((__nothrow__)) ;
extern int vfwscanf (__FILE *__restrict __s,
__const wchar_t *__restrict __format,
__gnuc_va_list __arg)
;
extern int vwscanf (__const wchar_t *__restrict __format,
__gnuc_va_list __arg)
;
extern int vswscanf (__const wchar_t *__restrict __s,
__const wchar_t *__restrict __format,
__gnuc_va_list __arg)
__attribute__ ((__nothrow__)) ;
extern wint_t fgetwc (__FILE *__stream);
extern wint_t getwc (__FILE *__stream);
extern wint_t getwchar (void);
extern wint_t fputwc (wchar_t __wc, __FILE *__stream);
extern wint_t putwc (wchar_t __wc, __FILE *__stream);
extern wint_t putwchar (wchar_t __wc);
extern wchar_t *fgetws (wchar_t *__restrict __ws, int __n,
__FILE *__restrict __stream);
extern int fputws (__const wchar_t *__restrict __ws,
__FILE *__restrict __stream);
extern wint_t ungetwc (wint_t __wc, __FILE *__stream);
# 768 "/usr/include/wchar.h" 3 4
extern wint_t getwc_unlocked (__FILE *__stream);
extern wint_t getwchar_unlocked (void);
extern wint_t fgetwc_unlocked (__FILE *__stream);
extern wint_t fputwc_unlocked (wchar_t __wc, __FILE *__stream);
# 794 "/usr/include/wchar.h" 3 4
extern wint_t putwc_unlocked (wchar_t __wc, __FILE *__stream);
extern wint_t putwchar_unlocked (wchar_t __wc);
# 804 "/usr/include/wchar.h" 3 4
extern wchar_t *fgetws_unlocked (wchar_t *__restrict __ws, int __n,
__FILE *__restrict __stream);
extern int fputws_unlocked (__const wchar_t *__restrict __ws,
__FILE *__restrict __stream);
extern size_t wcsftime (wchar_t *__restrict __s, size_t __maxsize,
__const wchar_t *__restrict __format,
__const struct tm *__restrict __tp) __attribute__ ((__nothrow__));
extern size_t wcsftime_l (wchar_t *__restrict __s, size_t __maxsize,
__const wchar_t *__restrict __format,
__const struct tm *__restrict __tp,
__locale_t __loc) __attribute__ ((__nothrow__));
# 858 "/usr/include/wchar.h" 3 4
# 272 "conftest.c" 2
int main ()
{
if (setlocale (__LC_ALL, "fr_FR") != ((void *)0))
{
if (btowc ((-1)) != (0xffffffffu))
return 1;
}
return 0;
}
------- Comment #1 from karl at gnu dot org 2009-12-20 01:35 -------
Fix:
do not use -O.
--
Summary: optimization bug with btwowc(EOF) in wchar.h
Product: gcc
Version: 4.4.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: karl at gnu dot org
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42440
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