_gcc.h

一个功能上类似STL的库

/* STLport configuration file
 * It is internal STLport header - DO NOT include it directly
 */

#define _STLP_COMPILER "gcc"

/* Systems having GLIBC installed have different traits */
#if defined (__linux__)
#  ifndef _STLP_USE_GLIBC
#    define _STLP_USE_GLIBC 1
#  endif
#  if defined (__UCLIBC__) && !defined (_STLP_USE_UCLIBC)
#    define _STLP_USE_UCLIBC 1
#  endif
#endif

#if defined (__CYGWIN__) && \
     (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 3) && !defined (_GLIBCPP_USE_C99)
#  define _STLP_NO_VENDOR_MATH_L
#  define _STLP_NO_VENDOR_STDLIB_L
#endif

#if (__GNUC__ < 3)
#  define _STLP_NO_VENDOR_STDLIB_L
#endif

/* We guess if we are using the cygwin distrib that has a special include schema.
 * There is no way to distinguish a cygwin distrib used in no-cygwin mode from a
 * mingw install. We are forced to use a configuration option
 */
#if !defined (_STLP_NATIVE_INCLUDE_PATH) && \
    (defined (__CYGWIN__) || defined (__MINGW32__) && defined (_STLP_NO_CYGWIN))
#  if (__GNUC__ > 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ > 3))
#    define _STLP_NATIVE_INCLUDE_PATH ../../../__GNUC__.__GNUC_MINOR__.__GNUC_PATCHLEVEL__/include/c++
#  elif defined (_STLP_NO_CYGWIN)
#    define _STLP_NATIVE_INCLUDE_PATH ../mingw
/*#  else
 * Before version gcc 3.4, the cygwin package include path was conform to the
 * GNU convention which is set later in this file.
 */
#  endif
#endif

#if (__GNUC__ < 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ < 4))
/* define for gcc versions before 3.4.0. */
#  define _STLP_NO_MEMBER_TEMPLATE_KEYWORD
#endif

/* azov: gcc on lynx have a bug that causes internal
 * compiler errors when compiling STLport with namespaces turned on.
 * When the compiler gets better - comment out _STLP_HAS_NO_NAMESPACES
 */
#if defined (__Lynx__) && (__GNUC__ < 3)
#  define _STLP_HAS_NO_NAMESPACES 1
#  define _STLP_NO_STATIC_TEMPLATE_DATA 1
/* turn off useless warning about including system headers */
#  define __NO_INCLUDE_WARN__ 1
#endif

/* Tru64 Unix, AIX, HP : gcc there by default uses native ld and hence cannot auto-instantiate
   static template data. If you are using GNU ld, please say so in stl_user_config.h header */
#if (__GNUC__ < 3) && !defined(_STLP_GCC_USES_GNU_LD) && \
   ((defined (__osf__) && defined (__alpha__)) || defined (_AIX) || defined (__hpux) || defined(__amigaos__) )
#  define _STLP_NO_STATIC_TEMPLATE_DATA
#endif

#if !defined (_REENTRANT) && (defined (_THREAD_SAFE) || \
                             (defined (__OpenBSD__) && defined (_POSIX_THREADS)) || \
                             (defined (__MINGW32__) && defined (_MT)))
#  define _REENTRANT
#endif

#if defined (__DJGPP)
#  define _STLP_RAND48    1
#  define _NOTHREADS    1
#  undef  _PTHREADS
#  define _STLP_LITTLE_ENDIAN
#endif

#if defined (__MINGW32__)
/* Mingw32, egcs compiler using the Microsoft C runtime */
#  undef  _STLP_NO_DRAND48
#  define _STLP_NO_DRAND48
#  define _STLP_CALL

#  if defined (_STLP_NEW_PLATFORM_SDK)
/* For the moment the Windows SDK coming with Mingw still mimik the old platform SDK. */
#    undef _STLP_NEW_PLATFORM_SDK
#  endif
#endif /* __MINGW32__ */

#if defined (__CYGWIN__) || defined (__MINGW32__)
#  if !defined (_STLP_USE_STATIC_LIB)
#    define _STLP_USE_DECLSPEC 1
#    if !defined (_STLP_USE_DYNAMIC_LIB)
#      define _STLP_USE_DYNAMIC_LIB
#    endif
#    define _STLP_EXPORT_DECLSPEC __declspec(dllexport)
#    define _STLP_CLASS_EXPORT_DECLSPEC __declspec(dllexport)
#    define _STLP_CLASS_IMPORT_DECLSPEC __declspec(dllimport)
#  endif
/* The following is defined independently of _STLP_USE_STATIC_LIB because it is also
 * used to import symbols from PSDK under MinGW
 */
#  define _STLP_IMPORT_DECLSPEC __declspec(dllimport)
#endif

#if defined (__CYGWIN__) || defined (__MINGW32__) || !(defined (_STLP_USE_GLIBC) || defined (__sun) || defined(__APPLE__))
#  if !defined (__MINGW32__) && !defined (__CYGWIN__)
#    define _STLP_NO_NATIVE_MBSTATE_T    1
#  endif
#  if !defined (__MINGW32__) || (__GNUC__ < 3) || (__GNUC__ == 3) && (__GNUC_MINOR__ < 4)
#    define _STLP_NO_NATIVE_WIDE_FUNCTIONS 1
#  endif
#  define _STLP_NO_NATIVE_WIDE_STREAMS   1
#endif

#define _STLP_NORETURN_FUNCTION __attribute__((noreturn))

/* Mac OS X is a little different with namespaces and cannot instantiate
 * static data members in template classes */
#if defined (__APPLE__)
#  if ((__GNUC__ < 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ < 3)))
/* Mac OS X is missing a required typedef and standard macro */
typedef unsigned int wint_t;
#  endif

#  define __unix

#  if (__GNUC__ < 3)

 /* Mac OS X needs one and only one source file to initialize all static data
  * members in template classes. Only one source file in an executable or
  * library can declare instances for such data members, otherwise duplicate
  * symbols will be generated. */

#    define _STLP_NO_STATIC_TEMPLATE_DATA
#    define _STLP_STATIC_CONST_INIT_BUG 1
#    define _STLP_STATIC_TEMPLATE_DATA 0
#    define _STLP_WEAK_ATTRIBUTE 1
 /* Workaround for the broken Mac OS X C++ preprocessor which cannot handle
  * parameterized macros in #include statements */
#    define _STLP_NATIVE_HEADER(header) <../g++/##header##>
#    define _STLP_NATIVE_C_HEADER(header) <../include/##header##>
#    define _STLP_NATIVE_CPP_C_HEADER(header) <../g++/##header##>
#    define _STLP_NATIVE_OLD_STREAMS_HEADER(header) <../g++/##header##>
#    define _STLP_NATIVE_CPP_RUNTIME_HEADER(header) <../g++/##header##>
#  endif /* __GNUC__ < 3 */

#  define _STLP_NO_LONG_DOUBLE

/* Mac OS X needs all "::" scope references to be "std::" */
#  define _STLP_USE_NEW_C_HEADERS

#  define _STLP_NO_VENDOR_STDLIB_L

#endif /* __APPLE__ */


#if defined(__BEOS__) && defined(__INTEL__)
#  define _STLP_NATIVE_HEADER(header) <../stlport/beos/##header##>
#  define _STLP_NATIVE_C_HEADER(header) <../stlport/beos/##header##>
#  define _STLP_NATIVE_CPP_C_HEADER(header) <../stlport/beos/##header##>
#  define _STLP_NATIVE_OLD_STREAMS_HEADER(header) <../stlport/beos/##header##>
#  define _STLP_NATIVE_CPP_RUNTIME_HEADER(header) <../stlport/beos/##header##>
#  define _STLP_NO_NATIVE_WIDE_FUNCTIONS 1
#  define _STLP_NO_NATIVE_WIDE_STREAMS   1
/*
#  define _NOTHREADS 1
*/
#  ifdef _PTHREADS
#    undef  _PTHREADS
#  endif
#  ifdef _STLP_PTHREADS
#    undef _STLP_PTHREADS
#  endif
#  define _STLP_USE_STDIO_IO 1
#  define _STLP_USE_GLIBC 1
#endif

/* g++ 2.7.x and above */
#define _STLP_LONG_LONG long long

#ifdef _STLP_USE_UCLIBC
/*
#  ifndef __DO_C99_MATH__
*/
  /* No *f math fuctions variants (i.e. sqrtf, fabsf, etc.) */
#  define _STLP_NO_VENDOR_MATH_F
  /* No *l math fuctions variants (i.e. sqrtl, fabsl, etc.) */
#  define _STLP_NO_VENDOR_MATH_L
#  define _STLP_NO_LONG_DOUBLE
/*
#  endif
*/
#endif

#if defined (__OpenBSD__) || defined (__FreeBSD__)
#  define _STLP_NO_VENDOR_MATH_L
#  define _STLP_NO_VENDOR_STDLIB_L /* no llabs */
#  ifndef __unix
#    define __unix
#  endif
#endif

#if defined (__alpha__)
#  define _STLP_NO_VENDOR_MATH_L
#  define _STLP_NO_IEC559_SUPPORT
#endif

#if defined (__hpux)
#  define _STLP_NO_VENDOR_STDLIB_L /* no llabs */
  /* No *f math fuctions variants (i.e. sqrtf, fabsf, etc.) */
#  define _STLP_NO_VENDOR_MATH_F
#endif

#if (__GNUC__ >= 3)
#  ifndef _STLP_HAS_NO_NEW_C_HEADERS
/*
#    ifndef _STLP_USE_UCLIBC
*/
#    define _STLP_HAS_NATIVE_FLOAT_ABS
/*
#    endif
*/
#  else
#    ifdef _STLP_USE_GLIBC
#      define _STLP_VENDOR_LONG_DOUBLE_MATH  1
#    endif
#  endif
#endif