If <stddef.h> is included after <wchar.h> and <wctype.h>, the following error occurs:
-------------------- $ cat test.cpp && g++ -c test.cpp #include <wchar.h> #include <wctype.h> #include <stddef.h> using namespace std; ptrdiff_t ptr = 0; test.cpp:9: error: ptrdiff_t does not name a type -------------------- Workaround: replace order of included files. -------------------- $ uname -a Linux farid-ubuntu 2.6.24-18-generic #1 SMP Wed May 28 19:28:38 UTC 2008 x86_64 GNU/Linux -------------------- -------------------- $ g++ -v Using built-in specs. Target: x86_64-linux-gnu Configured with: ../src/configure -v --enable-languages=c,c++,fortran,objc,obj-c++,treelang --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.2 --program-suffix=-4.2 --enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc --enable-mpfr --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu Thread model: posix gcc version 4.2.3 (Ubuntu 4.2.3-2ubuntu7) -------------------- Preprocessed output: -------------------- # 1 "test.cpp" # 1 "<built-in>" # 1 "<command-line>" # 1 "test.cpp" # 1 "/usr/include/wchar.h" 1 3 4 # 28 "/usr/include/wchar.h" 3 4 # 1 "/usr/include/features.h" 1 3 4 # 330 "/usr/include/features.h" 3 4 # 1 "/usr/include/sys/cdefs.h" 1 3 4 # 348 "/usr/include/sys/cdefs.h" 3 4 # 1 "/usr/include/bits/wordsize.h" 1 3 4 # 349 "/usr/include/sys/cdefs.h" 2 3 4 # 331 "/usr/include/features.h" 2 3 4 # 354 "/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-64.h" 1 3 4 # 10 "/usr/include/gnu/stubs.h" 2 3 4 # 355 "/usr/include/features.h" 2 3 4 # 29 "/usr/include/wchar.h" 2 3 4 # 37 "/usr/include/wchar.h" 3 4 # 1 "/usr/include/stdio.h" 1 3 4 # 45 "/usr/include/stdio.h" 3 4 struct _IO_FILE; typedef struct _IO_FILE FILE; # 65 "/usr/include/stdio.h" 3 4 typedef struct _IO_FILE __FILE; # 38 "/usr/include/wchar.h" 2 3 4 # 1 "/usr/lib/gcc/x86_64-linux-gnu/4.3.0/include/stdarg.h" 1 3 4 # 43 "/usr/lib/gcc/x86_64-linux-gnu/4.3.0/include/stdarg.h" 3 4 typedef __builtin_va_list __gnuc_va_list; # 41 "/usr/include/wchar.h" 2 3 4 # 1 "/usr/include/bits/wchar.h" 1 3 4 # 43 "/usr/include/wchar.h" 2 3 4 # 52 "/usr/include/wchar.h" 3 4 # 1 "/usr/lib/gcc/x86_64-linux-gnu/4.3.0/include/stddef.h" 1 3 4 # 214 "/usr/lib/gcc/x86_64-linux-gnu/4.3.0/include/stddef.h" 3 4 typedef long unsigned int size_t; # 355 "/usr/lib/gcc/x86_64-linux-gnu/4.3.0/include/stddef.h" 3 4 typedef unsigned int wint_t; # 53 "/usr/include/wchar.h" 2 3 4 # 78 "/usr/include/wchar.h" 3 4 typedef struct { int __count; union { unsigned int __wch; char __wchb[4]; } __value; } __mbstate_t; # 99 "/usr/include/wchar.h" 3 4 typedef __mbstate_t mbstate_t; # 124 "/usr/include/wchar.h" 3 4 extern "C" { struct tm; extern wchar_t *wcscpy (wchar_t *__restrict __dest, __const wchar_t *__restrict __src) throw (); extern wchar_t *wcsncpy (wchar_t *__restrict __dest, __const wchar_t *__restrict __src, size_t __n) throw (); extern wchar_t *wcscat (wchar_t *__restrict __dest, __const wchar_t *__restrict __src) throw (); extern wchar_t *wcsncat (wchar_t *__restrict __dest, __const wchar_t *__restrict __src, size_t __n) throw (); extern int wcscmp (__const wchar_t *__s1, __const wchar_t *__s2) throw () __attribute__ ((__pure__)); extern int wcsncmp (__const wchar_t *__s1, __const wchar_t *__s2, size_t __n) throw () __attribute__ ((__pure__)); extern int wcscasecmp (__const wchar_t *__s1, __const wchar_t *__s2) throw (); extern int wcsncasecmp (__const wchar_t *__s1, __const wchar_t *__s2, size_t __n) throw (); # 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; # 173 "/usr/include/wchar.h" 2 3 4 extern int wcscasecmp_l (__const wchar_t *__s1, __const wchar_t *__s2, __locale_t __loc) throw (); extern int wcsncasecmp_l (__const wchar_t *__s1, __const wchar_t *__s2, size_t __n, __locale_t __loc) throw (); extern int wcscoll (__const wchar_t *__s1, __const wchar_t *__s2) throw (); extern size_t wcsxfrm (wchar_t *__restrict __s1, __const wchar_t *__restrict __s2, size_t __n) throw (); extern int wcscoll_l (__const wchar_t *__s1, __const wchar_t *__s2, __locale_t __loc) throw (); extern size_t wcsxfrm_l (wchar_t *__s1, __const wchar_t *__s2, size_t __n, __locale_t __loc) throw (); extern wchar_t *wcsdup (__const wchar_t *__s) throw () __attribute__ ((__malloc__)); extern wchar_t *wcschr (__const wchar_t *__wcs, wchar_t __wc) throw () __attribute__ ((__pure__)); extern wchar_t *wcsrchr (__const wchar_t *__wcs, wchar_t __wc) throw () __attribute__ ((__pure__)); extern wchar_t *wcschrnul (__const wchar_t *__s, wchar_t __wc) throw () __attribute__ ((__pure__)); extern size_t wcscspn (__const wchar_t *__wcs, __const wchar_t *__reject) throw () __attribute__ ((__pure__)); extern size_t wcsspn (__const wchar_t *__wcs, __const wchar_t *__accept) throw () __attribute__ ((__pure__)); extern wchar_t *wcspbrk (__const wchar_t *__wcs, __const wchar_t *__accept) throw () __attribute__ ((__pure__)); extern wchar_t *wcsstr (__const wchar_t *__haystack, __const wchar_t *__needle) throw () __attribute__ ((__pure__)); extern wchar_t *wcstok (wchar_t *__restrict __s, __const wchar_t *__restrict __delim, wchar_t **__restrict __ptr) throw (); extern size_t wcslen (__const wchar_t *__s) throw () __attribute__ ((__pure__)); extern wchar_t *wcswcs (__const wchar_t *__haystack, __const wchar_t *__needle) throw () __attribute__ ((__pure__)); extern size_t wcsnlen (__const wchar_t *__s, size_t __maxlen) throw () __attribute__ ((__pure__)); extern wchar_t *wmemchr (__const wchar_t *__s, wchar_t __c, size_t __n) throw () __attribute__ ((__pure__)); extern int wmemcmp (__const wchar_t *__restrict __s1, __const wchar_t *__restrict __s2, size_t __n) throw () __attribute__ ((__pure__)); extern wchar_t *wmemcpy (wchar_t *__restrict __s1, __const wchar_t *__restrict __s2, size_t __n) throw (); extern wchar_t *wmemmove (wchar_t *__s1, __const wchar_t *__s2, size_t __n) throw (); extern wchar_t *wmemset (wchar_t *__s, wchar_t __c, size_t __n) throw (); extern wchar_t *wmempcpy (wchar_t *__restrict __s1, __const wchar_t *__restrict __s2, size_t __n) throw (); extern wint_t btowc (int __c) throw (); extern int wctob (wint_t __c) throw (); extern int mbsinit (__const mbstate_t *__ps) throw () __attribute__ ((__pure__)); extern size_t mbrtowc (wchar_t *__restrict __pwc, __const char *__restrict __s, size_t __n, mbstate_t *__p) throw (); extern size_t wcrtomb (char *__restrict __s, wchar_t __wc, mbstate_t *__restrict __ps) throw (); extern size_t __mbrlen (__const char *__restrict __s, size_t __n, mbstate_t *__restrict __ps) throw (); extern size_t mbrlen (__const char *__restrict __s, size_t __n, mbstate_t *__restrict __ps) throw (); # 352 "/usr/include/wchar.h" 3 4 extern size_t mbsrtowcs (wchar_t *__restrict __dst, __const char **__restrict __src, size_t __len, mbstate_t *__restrict __ps) throw (); extern size_t wcsrtombs (char *__restrict __dst, __const wchar_t **__restrict __src, size_t __len, mbstate_t *__restrict __ps) throw (); extern size_t mbsnrtowcs (wchar_t *__restrict __dst, __const char **__restrict __src, size_t __nmc, size_t __len, mbstate_t *__restrict __ps) throw (); extern size_t wcsnrtombs (char *__restrict __dst, __const wchar_t **__restrict __src, size_t __nwc, size_t __len, mbstate_t *__restrict __ps) throw (); extern int wcwidth (wchar_t __c) throw (); extern int wcswidth (__const wchar_t *__s, size_t __n) throw (); extern double wcstod (__const wchar_t *__restrict __nptr, wchar_t **__restrict __endptr) throw (); extern float wcstof (__const wchar_t *__restrict __nptr, wchar_t **__restrict __endptr) throw (); extern long double wcstold (__const wchar_t *__restrict __nptr, wchar_t **__restrict __endptr) throw (); extern long int wcstol (__const wchar_t *__restrict __nptr, wchar_t **__restrict __endptr, int __base) throw (); extern unsigned long int wcstoul (__const wchar_t *__restrict __nptr, wchar_t **__restrict __endptr, int __base) throw (); __extension__ extern long long int wcstoll (__const wchar_t *__restrict __nptr, wchar_t **__restrict __endptr, int __base) throw (); __extension__ extern unsigned long long int wcstoull (__const wchar_t *__restrict __nptr, wchar_t **__restrict __endptr, int __base) throw (); __extension__ extern long long int wcstoq (__const wchar_t *__restrict __nptr, wchar_t **__restrict __endptr, int __base) throw (); __extension__ extern unsigned long long int wcstouq (__const wchar_t *__restrict __nptr, wchar_t **__restrict __endptr, int __base) throw (); # 477 "/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) throw (); extern unsigned long int wcstoul_l (__const wchar_t *__restrict __nptr, wchar_t **__restrict __endptr, int __base, __locale_t __loc) throw (); __extension__ extern long long int wcstoll_l (__const wchar_t *__restrict __nptr, wchar_t **__restrict __endptr, int __base, __locale_t __loc) throw (); __extension__ extern unsigned long long int wcstoull_l (__const wchar_t *__restrict __nptr, wchar_t **__restrict __endptr, int __base, __locale_t __loc) throw (); extern double wcstod_l (__const wchar_t *__restrict __nptr, wchar_t **__restrict __endptr, __locale_t __loc) throw (); extern float wcstof_l (__const wchar_t *__restrict __nptr, wchar_t **__restrict __endptr, __locale_t __loc) throw (); extern long double wcstold_l (__const wchar_t *__restrict __nptr, wchar_t **__restrict __endptr, __locale_t __loc) throw (); extern wchar_t *wcpcpy (wchar_t *__dest, __const wchar_t *__src) throw (); extern wchar_t *wcpncpy (wchar_t *__dest, __const wchar_t *__src, size_t __n) throw (); # 527 "/usr/include/wchar.h" 3 4 extern __FILE *open_wmemstream (wchar_t **__bufloc, size_t *__sizeloc) throw (); extern int fwide (__FILE *__fp, int __mode) throw (); 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, ...) throw () ; 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) throw () ; 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, ...) throw () ; # 627 "/usr/include/wchar.h" 3 4 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) throw () ; # 683 "/usr/include/wchar.h" 3 4 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); # 748 "/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); # 774 "/usr/include/wchar.h" 3 4 extern wint_t putwc_unlocked (wchar_t __wc, __FILE *__stream); extern wint_t putwchar_unlocked (wchar_t __wc); # 784 "/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) throw (); 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) throw (); # 838 "/usr/include/wchar.h" 3 4 } # 4 "test.cpp" 2 # 1 "/usr/include/wctype.h" 1 3 4 # 27 "/usr/include/wctype.h" 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 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; typedef signed long int __int64_t; typedef unsigned long int __uint64_t; typedef long int __quad_t; typedef unsigned long int __u_quad_t; # 131 "/usr/include/bits/types.h" 3 4 # 1 "/usr/include/bits/typesizes.h" 1 3 4 # 132 "/usr/include/bits/types.h" 2 3 4 typedef unsigned long int __dev_t; typedef unsigned int __uid_t; typedef unsigned int __gid_t; typedef unsigned long int __ino_t; typedef unsigned long int __ino64_t; typedef unsigned int __mode_t; typedef unsigned long int __nlink_t; typedef long int __off_t; typedef long int __off64_t; typedef int __pid_t; typedef struct { int __val[2]; } __fsid_t; typedef long int __clock_t; typedef unsigned long int __rlim_t; typedef unsigned long int __rlim64_t; typedef unsigned int __id_t; typedef long int __time_t; typedef unsigned int __useconds_t; typedef long int __suseconds_t; typedef int __daddr_t; typedef long int __swblk_t; typedef int __key_t; typedef int __clockid_t; typedef void * __timer_t; typedef long int __blksize_t; typedef long int __blkcnt_t; typedef long int __blkcnt64_t; typedef unsigned long int __fsblkcnt_t; typedef unsigned long int __fsblkcnt64_t; typedef unsigned long int __fsfilcnt_t; typedef unsigned long int __fsfilcnt64_t; typedef long int __ssize_t; typedef __off64_t __loff_t; typedef __quad_t *__qaddr_t; typedef char *__caddr_t; typedef long int __intptr_t; typedef unsigned int __socklen_t; # 28 "/usr/include/wctype.h" 2 3 4 # 50 "/usr/include/wctype.h" 3 4 typedef unsigned long int wctype_t; # 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 # 62 "/usr/include/wctype.h" 2 3 4 # 72 "/usr/include/wctype.h" 3 4 enum { __ISwupper = 0, __ISwlower = 1, __ISwalpha = 2, __ISwdigit = 3, __ISwxdigit = 4, __ISwspace = 5, __ISwprint = 6, __ISwgraph = 7, __ISwblank = 8, __ISwcntrl = 9, __ISwpunct = 10, __ISwalnum = 11, _ISwupper = ((__ISwupper) < 8 ? (int) ((1UL << (__ISwupper)) << 24) : ((__ISwupper) < 16 ? (int) ((1UL << (__ISwupper)) << 8) : ((__ISwupper) < 24 ? (int) ((1UL << (__ISwupper)) >> 8) : (int) ((1UL << (__ISwupper)) >> 24)))), _ISwlower = ((__ISwlower) < 8 ? (int) ((1UL << (__ISwlower)) << 24) : ((__ISwlower) < 16 ? (int) ((1UL << (__ISwlower)) << 8) : ((__ISwlower) < 24 ? (int) ((1UL << (__ISwlower)) >> 8) : (int) ((1UL << (__ISwlower)) >> 24)))), _ISwalpha = ((__ISwalpha) < 8 ? (int) ((1UL << (__ISwalpha)) << 24) : ((__ISwalpha) < 16 ? (int) ((1UL << (__ISwalpha)) << 8) : ((__ISwalpha) < 24 ? (int) ((1UL << (__ISwalpha)) >> 8) : (int) ((1UL << (__ISwalpha)) >> 24)))), _ISwdigit = ((__ISwdigit) < 8 ? (int) ((1UL << (__ISwdigit)) << 24) : ((__ISwdigit) < 16 ? (int) ((1UL << (__ISwdigit)) << 8) : ((__ISwdigit) < 24 ? (int) ((1UL << (__ISwdigit)) >> 8) : (int) ((1UL << (__ISwdigit)) >> 24)))), _ISwxdigit = ((__ISwxdigit) < 8 ? (int) ((1UL << (__ISwxdigit)) << 24) : ((__ISwxdigit) < 16 ? (int) ((1UL << (__ISwxdigit)) << 8) : ((__ISwxdigit) < 24 ? (int) ((1UL << (__ISwxdigit)) >> 8) : (int) ((1UL << (__ISwxdigit)) >> 24)))), _ISwspace = ((__ISwspace) < 8 ? (int) ((1UL << (__ISwspace)) << 24) : ((__ISwspace) < 16 ? (int) ((1UL << (__ISwspace)) << 8) : ((__ISwspace) < 24 ? (int) ((1UL << (__ISwspace)) >> 8) : (int) ((1UL << (__ISwspace)) >> 24)))), _ISwprint = ((__ISwprint) < 8 ? (int) ((1UL << (__ISwprint)) << 24) : ((__ISwprint) < 16 ? (int) ((1UL << (__ISwprint)) << 8) : ((__ISwprint) < 24 ? (int) ((1UL << (__ISwprint)) >> 8) : (int) ((1UL << (__ISwprint)) >> 24)))), _ISwgraph = ((__ISwgraph) < 8 ? (int) ((1UL << (__ISwgraph)) << 24) : ((__ISwgraph) < 16 ? (int) ((1UL << (__ISwgraph)) << 8) : ((__ISwgraph) < 24 ? (int) ((1UL << (__ISwgraph)) >> 8) : (int) ((1UL << (__ISwgraph)) >> 24)))), _ISwblank = ((__ISwblank) < 8 ? (int) ((1UL << (__ISwblank)) << 24) : ((__ISwblank) < 16 ? (int) ((1UL << (__ISwblank)) << 8) : ((__ISwblank) < 24 ? (int) ((1UL << (__ISwblank)) >> 8) : (int) ((1UL << (__ISwblank)) >> 24)))), _ISwcntrl = ((__ISwcntrl) < 8 ? (int) ((1UL << (__ISwcntrl)) << 24) : ((__ISwcntrl) < 16 ? (int) ((1UL << (__ISwcntrl)) << 8) : ((__ISwcntrl) < 24 ? (int) ((1UL << (__ISwcntrl)) >> 8) : (int) ((1UL << (__ISwcntrl)) >> 24)))), _ISwpunct = ((__ISwpunct) < 8 ? (int) ((1UL << (__ISwpunct)) << 24) : ((__ISwpunct) < 16 ? (int) ((1UL << (__ISwpunct)) << 8) : ((__ISwpunct) < 24 ? (int) ((1UL << (__ISwpunct)) >> 8) : (int) ((1UL << (__ISwpunct)) >> 24)))), _ISwalnum = ((__ISwalnum) < 8 ? (int) ((1UL << (__ISwalnum)) << 24) : ((__ISwalnum) < 16 ? (int) ((1UL << (__ISwalnum)) << 8) : ((__ISwalnum) < 24 ? (int) ((1UL << (__ISwalnum)) >> 8) : (int) ((1UL << (__ISwalnum)) >> 24)))) }; extern "C" { extern int iswalnum (wint_t __wc) throw (); extern int iswalpha (wint_t __wc) throw (); extern int iswcntrl (wint_t __wc) throw (); extern int iswdigit (wint_t __wc) throw (); extern int iswgraph (wint_t __wc) throw (); extern int iswlower (wint_t __wc) throw (); extern int iswprint (wint_t __wc) throw (); extern int iswpunct (wint_t __wc) throw (); extern int iswspace (wint_t __wc) throw (); extern int iswupper (wint_t __wc) throw (); extern int iswxdigit (wint_t __wc) throw (); extern int iswblank (wint_t __wc) throw (); # 172 "/usr/include/wctype.h" 3 4 extern wctype_t wctype (__const char *__property) throw (); extern int iswctype (wint_t __wc, wctype_t __desc) throw (); typedef __const __int32_t *wctrans_t; extern wint_t towlower (wint_t __wc) throw (); extern wint_t towupper (wint_t __wc) throw (); } # 214 "/usr/include/wctype.h" 3 4 extern "C" { extern wctrans_t wctrans (__const char *__property) throw (); extern wint_t towctrans (wint_t __wc, wctrans_t __desc) throw (); extern int iswalnum_l (wint_t __wc, __locale_t __locale) throw (); extern int iswalpha_l (wint_t __wc, __locale_t __locale) throw (); extern int iswcntrl_l (wint_t __wc, __locale_t __locale) throw (); extern int iswdigit_l (wint_t __wc, __locale_t __locale) throw (); extern int iswgraph_l (wint_t __wc, __locale_t __locale) throw (); extern int iswlower_l (wint_t __wc, __locale_t __locale) throw (); extern int iswprint_l (wint_t __wc, __locale_t __locale) throw (); extern int iswpunct_l (wint_t __wc, __locale_t __locale) throw (); extern int iswspace_l (wint_t __wc, __locale_t __locale) throw (); extern int iswupper_l (wint_t __wc, __locale_t __locale) throw (); extern int iswxdigit_l (wint_t __wc, __locale_t __locale) throw (); extern int iswblank_l (wint_t __wc, __locale_t __locale) throw (); extern wctype_t wctype_l (__const char *__property, __locale_t __locale) throw (); extern int iswctype_l (wint_t __wc, wctype_t __desc, __locale_t __locale) throw (); extern wint_t towlower_l (wint_t __wc, __locale_t __locale) throw (); extern wint_t towupper_l (wint_t __wc, __locale_t __locale) throw (); extern wctrans_t wctrans_l (__const char *__property, __locale_t __locale) throw (); extern wint_t towctrans_l (wint_t __wc, wctrans_t __desc, __locale_t __locale) throw (); } # 5 "test.cpp" 2 # 1 "/usr/lib/gcc/x86_64-linux-gnu/4.3.0/include/stddef.h" 1 3 4 # 6 "test.cpp" 2 using namespace std; ptrdiff_t ptr = 0; -------------------- -- Summary: ptrdiff_t undefined if <stddef.h> is included after <wchar.h> and <wctype.h> Product: gcc Version: 4.2.3 Status: UNCONFIRMED Severity: major Priority: P3 Component: libstdc++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: faridz at apache dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36530