Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Browse files

Add some C99 and C++ compatibility headers for MSVC

  • Loading branch information...
commit 0366f5ae23fa1268e95ffeff787c4eeb19d02a2a 1 parent e687dd5
@pcwalton pcwalton authored
Showing with 649 additions and 0 deletions.
  1. +305 −0 src/rt/msvc/inttypes.h
  2. +247 −0 src/rt/msvc/stdint.h
  3. +97 −0 src/rt/msvc/typeof.h
View
305 src/rt/msvc/inttypes.h
@@ -0,0 +1,305 @@
+// ISO C9x compliant inttypes.h for Microsoft Visual Studio
+// Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124
+//
+// Copyright (c) 2006 Alexander Chemeris
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice,
+// this list of conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+//
+// 3. The name of the author may be used to endorse or promote products
+// derived from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _MSC_VER // [
+#error "Use this header only with Microsoft Visual C++ compilers!"
+#endif // _MSC_VER ]
+
+#ifndef _MSC_INTTYPES_H_ // [
+#define _MSC_INTTYPES_H_
+
+#if _MSC_VER > 1000
+#pragma once
+#endif
+
+#include "stdint.h"
+
+// 7.8 Format conversion of integer types
+
+typedef struct {
+ intmax_t quot;
+ intmax_t rem;
+} imaxdiv_t;
+
+// 7.8.1 Macros for format specifiers
+
+#if !defined(__cplusplus) || defined(__STDC_FORMAT_MACROS) // [ See footnote 185 at page 198
+
+// The fprintf macros for signed integers are:
+#define PRId8 "d"
+#define PRIi8 "i"
+#define PRIdLEAST8 "d"
+#define PRIiLEAST8 "i"
+#define PRIdFAST8 "d"
+#define PRIiFAST8 "i"
+
+#define PRId16 "hd"
+#define PRIi16 "hi"
+#define PRIdLEAST16 "hd"
+#define PRIiLEAST16 "hi"
+#define PRIdFAST16 "hd"
+#define PRIiFAST16 "hi"
+
+#define PRId32 "I32d"
+#define PRIi32 "I32i"
+#define PRIdLEAST32 "I32d"
+#define PRIiLEAST32 "I32i"
+#define PRIdFAST32 "I32d"
+#define PRIiFAST32 "I32i"
+
+#define PRId64 "I64d"
+#define PRIi64 "I64i"
+#define PRIdLEAST64 "I64d"
+#define PRIiLEAST64 "I64i"
+#define PRIdFAST64 "I64d"
+#define PRIiFAST64 "I64i"
+
+#define PRIdMAX "I64d"
+#define PRIiMAX "I64i"
+
+#define PRIdPTR "Id"
+#define PRIiPTR "Ii"
+
+// The fprintf macros for unsigned integers are:
+#define PRIo8 "o"
+#define PRIu8 "u"
+#define PRIx8 "x"
+#define PRIX8 "X"
+#define PRIoLEAST8 "o"
+#define PRIuLEAST8 "u"
+#define PRIxLEAST8 "x"
+#define PRIXLEAST8 "X"
+#define PRIoFAST8 "o"
+#define PRIuFAST8 "u"
+#define PRIxFAST8 "x"
+#define PRIXFAST8 "X"
+
+#define PRIo16 "ho"
+#define PRIu16 "hu"
+#define PRIx16 "hx"
+#define PRIX16 "hX"
+#define PRIoLEAST16 "ho"
+#define PRIuLEAST16 "hu"
+#define PRIxLEAST16 "hx"
+#define PRIXLEAST16 "hX"
+#define PRIoFAST16 "ho"
+#define PRIuFAST16 "hu"
+#define PRIxFAST16 "hx"
+#define PRIXFAST16 "hX"
+
+#define PRIo32 "I32o"
+#define PRIu32 "I32u"
+#define PRIx32 "I32x"
+#define PRIX32 "I32X"
+#define PRIoLEAST32 "I32o"
+#define PRIuLEAST32 "I32u"
+#define PRIxLEAST32 "I32x"
+#define PRIXLEAST32 "I32X"
+#define PRIoFAST32 "I32o"
+#define PRIuFAST32 "I32u"
+#define PRIxFAST32 "I32x"
+#define PRIXFAST32 "I32X"
+
+#define PRIo64 "I64o"
+#define PRIu64 "I64u"
+#define PRIx64 "I64x"
+#define PRIX64 "I64X"
+#define PRIoLEAST64 "I64o"
+#define PRIuLEAST64 "I64u"
+#define PRIxLEAST64 "I64x"
+#define PRIXLEAST64 "I64X"
+#define PRIoFAST64 "I64o"
+#define PRIuFAST64 "I64u"
+#define PRIxFAST64 "I64x"
+#define PRIXFAST64 "I64X"
+
+#define PRIoMAX "I64o"
+#define PRIuMAX "I64u"
+#define PRIxMAX "I64x"
+#define PRIXMAX "I64X"
+
+#define PRIoPTR "Io"
+#define PRIuPTR "Iu"
+#define PRIxPTR "Ix"
+#define PRIXPTR "IX"
+
+// The fscanf macros for signed integers are:
+#define SCNd8 "d"
+#define SCNi8 "i"
+#define SCNdLEAST8 "d"
+#define SCNiLEAST8 "i"
+#define SCNdFAST8 "d"
+#define SCNiFAST8 "i"
+
+#define SCNd16 "hd"
+#define SCNi16 "hi"
+#define SCNdLEAST16 "hd"
+#define SCNiLEAST16 "hi"
+#define SCNdFAST16 "hd"
+#define SCNiFAST16 "hi"
+
+#define SCNd32 "ld"
+#define SCNi32 "li"
+#define SCNdLEAST32 "ld"
+#define SCNiLEAST32 "li"
+#define SCNdFAST32 "ld"
+#define SCNiFAST32 "li"
+
+#define SCNd64 "I64d"
+#define SCNi64 "I64i"
+#define SCNdLEAST64 "I64d"
+#define SCNiLEAST64 "I64i"
+#define SCNdFAST64 "I64d"
+#define SCNiFAST64 "I64i"
+
+#define SCNdMAX "I64d"
+#define SCNiMAX "I64i"
+
+#ifdef _WIN64 // [
+# define SCNdPTR "I64d"
+# define SCNiPTR "I64i"
+#else // _WIN64 ][
+# define SCNdPTR "ld"
+# define SCNiPTR "li"
+#endif // _WIN64 ]
+
+// The fscanf macros for unsigned integers are:
+#define SCNo8 "o"
+#define SCNu8 "u"
+#define SCNx8 "x"
+#define SCNX8 "X"
+#define SCNoLEAST8 "o"
+#define SCNuLEAST8 "u"
+#define SCNxLEAST8 "x"
+#define SCNXLEAST8 "X"
+#define SCNoFAST8 "o"
+#define SCNuFAST8 "u"
+#define SCNxFAST8 "x"
+#define SCNXFAST8 "X"
+
+#define SCNo16 "ho"
+#define SCNu16 "hu"
+#define SCNx16 "hx"
+#define SCNX16 "hX"
+#define SCNoLEAST16 "ho"
+#define SCNuLEAST16 "hu"
+#define SCNxLEAST16 "hx"
+#define SCNXLEAST16 "hX"
+#define SCNoFAST16 "ho"
+#define SCNuFAST16 "hu"
+#define SCNxFAST16 "hx"
+#define SCNXFAST16 "hX"
+
+#define SCNo32 "lo"
+#define SCNu32 "lu"
+#define SCNx32 "lx"
+#define SCNX32 "lX"
+#define SCNoLEAST32 "lo"
+#define SCNuLEAST32 "lu"
+#define SCNxLEAST32 "lx"
+#define SCNXLEAST32 "lX"
+#define SCNoFAST32 "lo"
+#define SCNuFAST32 "lu"
+#define SCNxFAST32 "lx"
+#define SCNXFAST32 "lX"
+
+#define SCNo64 "I64o"
+#define SCNu64 "I64u"
+#define SCNx64 "I64x"
+#define SCNX64 "I64X"
+#define SCNoLEAST64 "I64o"
+#define SCNuLEAST64 "I64u"
+#define SCNxLEAST64 "I64x"
+#define SCNXLEAST64 "I64X"
+#define SCNoFAST64 "I64o"
+#define SCNuFAST64 "I64u"
+#define SCNxFAST64 "I64x"
+#define SCNXFAST64 "I64X"
+
+#define SCNoMAX "I64o"
+#define SCNuMAX "I64u"
+#define SCNxMAX "I64x"
+#define SCNXMAX "I64X"
+
+#ifdef _WIN64 // [
+# define SCNoPTR "I64o"
+# define SCNuPTR "I64u"
+# define SCNxPTR "I64x"
+# define SCNXPTR "I64X"
+#else // _WIN64 ][
+# define SCNoPTR "lo"
+# define SCNuPTR "lu"
+# define SCNxPTR "lx"
+# define SCNXPTR "lX"
+#endif // _WIN64 ]
+
+#endif // __STDC_FORMAT_MACROS ]
+
+// 7.8.2 Functions for greatest-width integer types
+
+// 7.8.2.1 The imaxabs function
+#define imaxabs _abs64
+
+// 7.8.2.2 The imaxdiv function
+
+// This is modified version of div() function from Microsoft's div.c found
+// in %MSVC.NET%\crt\src\div.c
+#ifdef STATIC_IMAXDIV // [
+static
+#else // STATIC_IMAXDIV ][
+_inline
+#endif // STATIC_IMAXDIV ]
+imaxdiv_t __cdecl imaxdiv(intmax_t numer, intmax_t denom)
+{
+ imaxdiv_t result;
+
+ result.quot = numer / denom;
+ result.rem = numer % denom;
+
+ if (numer < 0 && result.rem > 0) {
+ // did division wrong; must fix up
+ ++result.quot;
+ result.rem -= denom;
+ }
+
+ return result;
+}
+
+// 7.8.2.3 The strtoimax and strtoumax functions
+#define strtoimax _strtoi64
+#define strtoumax _strtoui64
+
+// 7.8.2.4 The wcstoimax and wcstoumax functions
+#define wcstoimax _wcstoi64
+#define wcstoumax _wcstoui64
+
+
+#endif // _MSC_INTTYPES_H_ ]
View
247 src/rt/msvc/stdint.h
@@ -0,0 +1,247 @@
+// ISO C9x compliant stdint.h for Microsoft Visual Studio
+// Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124
+//
+// Copyright (c) 2006-2008 Alexander Chemeris
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice,
+// this list of conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+//
+// 3. The name of the author may be used to endorse or promote products
+// derived from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _MSC_VER // [
+#error "Use this header only with Microsoft Visual C++ compilers!"
+#endif // _MSC_VER ]
+
+#ifndef _MSC_STDINT_H_ // [
+#define _MSC_STDINT_H_
+
+#if _MSC_VER > 1000
+#pragma once
+#endif
+
+#include <limits.h>
+
+// For Visual Studio 6 in C++ mode and for many Visual Studio versions when
+// compiling for ARM we should wrap <wchar.h> include with 'extern "C++" {}'
+// or compiler give many errors like this:
+// error C2733: second C linkage of overloaded function 'wmemchr' not allowed
+#ifdef __cplusplus
+extern "C" {
+#endif
+# include <wchar.h>
+#ifdef __cplusplus
+}
+#endif
+
+// Define _W64 macros to mark types changing their size, like intptr_t.
+#ifndef _W64
+# if !defined(__midl) && (defined(_X86_) || defined(_M_IX86)) && _MSC_VER >= 1300
+# define _W64 __w64
+# else
+# define _W64
+# endif
+#endif
+
+
+// 7.18.1 Integer types
+
+// 7.18.1.1 Exact-width integer types
+
+// Visual Studio 6 and Embedded Visual C++ 4 doesn't
+// realize that, e.g. char has the same size as __int8
+// so we give up on __intX for them.
+#if (_MSC_VER < 1300)
+ typedef signed char int8_t;
+ typedef signed short int16_t;
+ typedef signed int int32_t;
+ typedef unsigned char uint8_t;
+ typedef unsigned short uint16_t;
+ typedef unsigned int uint32_t;
+#else
+ typedef signed __int8 int8_t;
+ typedef signed __int16 int16_t;
+ typedef signed __int32 int32_t;
+ typedef unsigned __int8 uint8_t;
+ typedef unsigned __int16 uint16_t;
+ typedef unsigned __int32 uint32_t;
+#endif
+typedef signed __int64 int64_t;
+typedef unsigned __int64 uint64_t;
+
+
+// 7.18.1.2 Minimum-width integer types
+typedef int8_t int_least8_t;
+typedef int16_t int_least16_t;
+typedef int32_t int_least32_t;
+typedef int64_t int_least64_t;
+typedef uint8_t uint_least8_t;
+typedef uint16_t uint_least16_t;
+typedef uint32_t uint_least32_t;
+typedef uint64_t uint_least64_t;
+
+// 7.18.1.3 Fastest minimum-width integer types
+typedef int8_t int_fast8_t;
+typedef int16_t int_fast16_t;
+typedef int32_t int_fast32_t;
+typedef int64_t int_fast64_t;
+typedef uint8_t uint_fast8_t;
+typedef uint16_t uint_fast16_t;
+typedef uint32_t uint_fast32_t;
+typedef uint64_t uint_fast64_t;
+
+// 7.18.1.4 Integer types capable of holding object pointers
+#ifdef _WIN64 // [
+ typedef signed __int64 intptr_t;
+ typedef unsigned __int64 uintptr_t;
+#else // _WIN64 ][
+ typedef _W64 signed int intptr_t;
+ typedef _W64 unsigned int uintptr_t;
+#endif // _WIN64 ]
+
+// 7.18.1.5 Greatest-width integer types
+typedef int64_t intmax_t;
+typedef uint64_t uintmax_t;
+
+
+// 7.18.2 Limits of specified-width integer types
+
+#if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) // [ See footnote 220 at page 257 and footnote 221 at page 259
+
+// 7.18.2.1 Limits of exact-width integer types
+#define INT8_MIN ((int8_t)_I8_MIN)
+#define INT8_MAX _I8_MAX
+#define INT16_MIN ((int16_t)_I16_MIN)
+#define INT16_MAX _I16_MAX
+#define INT32_MIN ((int32_t)_I32_MIN)
+#define INT32_MAX _I32_MAX
+#define INT64_MIN ((int64_t)_I64_MIN)
+#define INT64_MAX _I64_MAX
+#define UINT8_MAX _UI8_MAX
+#define UINT16_MAX _UI16_MAX
+#define UINT32_MAX _UI32_MAX
+#define UINT64_MAX _UI64_MAX
+
+// 7.18.2.2 Limits of minimum-width integer types
+#define INT_LEAST8_MIN INT8_MIN
+#define INT_LEAST8_MAX INT8_MAX
+#define INT_LEAST16_MIN INT16_MIN
+#define INT_LEAST16_MAX INT16_MAX
+#define INT_LEAST32_MIN INT32_MIN
+#define INT_LEAST32_MAX INT32_MAX
+#define INT_LEAST64_MIN INT64_MIN
+#define INT_LEAST64_MAX INT64_MAX
+#define UINT_LEAST8_MAX UINT8_MAX
+#define UINT_LEAST16_MAX UINT16_MAX
+#define UINT_LEAST32_MAX UINT32_MAX
+#define UINT_LEAST64_MAX UINT64_MAX
+
+// 7.18.2.3 Limits of fastest minimum-width integer types
+#define INT_FAST8_MIN INT8_MIN
+#define INT_FAST8_MAX INT8_MAX
+#define INT_FAST16_MIN INT16_MIN
+#define INT_FAST16_MAX INT16_MAX
+#define INT_FAST32_MIN INT32_MIN
+#define INT_FAST32_MAX INT32_MAX
+#define INT_FAST64_MIN INT64_MIN
+#define INT_FAST64_MAX INT64_MAX
+#define UINT_FAST8_MAX UINT8_MAX
+#define UINT_FAST16_MAX UINT16_MAX
+#define UINT_FAST32_MAX UINT32_MAX
+#define UINT_FAST64_MAX UINT64_MAX
+
+// 7.18.2.4 Limits of integer types capable of holding object pointers
+#ifdef _WIN64 // [
+# define INTPTR_MIN INT64_MIN
+# define INTPTR_MAX INT64_MAX
+# define UINTPTR_MAX UINT64_MAX
+#else // _WIN64 ][
+# define INTPTR_MIN INT32_MIN
+# define INTPTR_MAX INT32_MAX
+# define UINTPTR_MAX UINT32_MAX
+#endif // _WIN64 ]
+
+// 7.18.2.5 Limits of greatest-width integer types
+#define INTMAX_MIN INT64_MIN
+#define INTMAX_MAX INT64_MAX
+#define UINTMAX_MAX UINT64_MAX
+
+// 7.18.3 Limits of other integer types
+
+#ifdef _WIN64 // [
+# define PTRDIFF_MIN _I64_MIN
+# define PTRDIFF_MAX _I64_MAX
+#else // _WIN64 ][
+# define PTRDIFF_MIN _I32_MIN
+# define PTRDIFF_MAX _I32_MAX
+#endif // _WIN64 ]
+
+#define SIG_ATOMIC_MIN INT_MIN
+#define SIG_ATOMIC_MAX INT_MAX
+
+#ifndef SIZE_MAX // [
+# ifdef _WIN64 // [
+# define SIZE_MAX _UI64_MAX
+# else // _WIN64 ][
+# define SIZE_MAX _UI32_MAX
+# endif // _WIN64 ]
+#endif // SIZE_MAX ]
+
+// WCHAR_MIN and WCHAR_MAX are also defined in <wchar.h>
+#ifndef WCHAR_MIN // [
+# define WCHAR_MIN 0
+#endif // WCHAR_MIN ]
+#ifndef WCHAR_MAX // [
+# define WCHAR_MAX _UI16_MAX
+#endif // WCHAR_MAX ]
+
+#define WINT_MIN 0
+#define WINT_MAX _UI16_MAX
+
+#endif // __STDC_LIMIT_MACROS ]
+
+
+// 7.18.4 Limits of other integer types
+
+#if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS) // [ See footnote 224 at page 260
+
+// 7.18.4.1 Macros for minimum-width integer constants
+
+#define INT8_C(val) val##i8
+#define INT16_C(val) val##i16
+#define INT32_C(val) val##i32
+#define INT64_C(val) val##i64
+
+#define UINT8_C(val) val##ui8
+#define UINT16_C(val) val##ui16
+#define UINT32_C(val) val##ui32
+#define UINT64_C(val) val##ui64
+
+// 7.18.4.2 Macros for greatest-width integer constants
+#define INTMAX_C INT64_C
+#define UINTMAX_C UINT64_C
+
+#endif // __STDC_CONSTANT_MACROS ]
+
+
+#endif // _MSC_STDINT_H_ ]
View
97 src/rt/msvc/typeof.h
@@ -0,0 +1,97 @@
+// This piece of magic brought to you by:
+// http://www.nedproductions.biz/blog/
+// implementing-typeof-in-microsofts-c-compiler
+
+#ifndef MSVC_TYPEOF_H
+#define MSVC_TYPEOF_H
+
+#if defined(_MSC_VER) && _MSC_VER>=1400
+namespace msvc_typeof_impl {
+ /* This is a fusion of Igor Chesnokov's method (http://rsdn.ru/forum/src/1094305.aspx)
+ and Steven Watanabe's method (http://lists.boost.org/Archives/boost/2006/12/115006.php)
+
+ How it works:
+ C++ allows template type inference for templated function parameters but nothing else.
+ What we do is to pass the expression sent to typeof() into the templated function vartypeID()
+ as its parameter, thus extracting its type. The big problem traditionally now is how to get
+ that type out of the vartypeID() instance, and here's how we do it:
+ 1. unique_type_id() returns a monotonically increasing integer for every unique type
+ passed to it during this compilation unit. It also specialises an instance of
+ msvc_extract_type<unique_type_id, type>::id2type_impl<true>.
+ 2. vartypeID() returns a sized<unique_type_id> for the type where
+ sizeof(sized<unique_type_id>)==unique_type_id. We vector through sized as a means
+ of returning the unique_type_id at compile time rather than runtime.
+ 3. msvc_extract_type<unique_type_id> then extracts the type by using a bug in MSVC to
+ reselect the specialised child type (id2type_impl<true>) from within the specialisation
+ of itself originally performed by the above instance of unique_type_id. This bug works
+ because when MSVC calculated the signature of the specialised
+ msvc_extract_type<unique_type_id, type>::id2type_impl<true>, it does not include the
+ value of type in the signature of id2type_impl<true>. Therefore when we reselect
+ msvc_extract_type<unique_type_id>::id2type_impl<true> it erroneously returns the one
+ already in its list of instantiated types rather than correctly generating a newly
+ specialised msvc_extract_type<unique_type_id, msvc_extract_type_default_param>::id2type_impl<true>
+
+ This bug allows the impossible and gives us a working typeof() in MSVC. Hopefully Microsoft
+ won't fix this bug until they implement a native typeof.
+ */
+
+ struct msvc_extract_type_default_param {};
+ template<int ID, typename T = msvc_extract_type_default_param> struct msvc_extract_type;
+
+ template<int ID> struct msvc_extract_type<ID, msvc_extract_type_default_param>
+ {
+ template<bool> struct id2type_impl;
+
+ typedef id2type_impl<true> id2type;
+ };
+
+ template<int ID, typename T> struct msvc_extract_type : msvc_extract_type<ID, msvc_extract_type_default_param>
+ {
+ template<> struct id2type_impl<true> //VC8.0 specific bugfeature
+ {
+ typedef T type;
+ };
+ template<bool> struct id2type_impl;
+
+ typedef id2type_impl<true> id2type;
+ };
+
+
+ template<int N> class CCounter;
+
+ // TUnused is required to force compiler to recompile CCountOf class
+ template<typename TUnused, int NTested = 0> struct CCountOf
+ {
+ enum
+ {
+ __if_exists(CCounter<NTested>) { count = CCountOf<TUnused, NTested + 1>::count }
+ __if_not_exists(CCounter<NTested>) { count = NTested }
+ };
+ };
+
+ template<class TTypeReg, class TUnused, int NValue> struct CProvideCounterValue { enum { value = NValue }; };
+
+ // type_id
+ #define unique_type_id(type) \
+ (CProvideCounterValue< \
+ /*register TYPE--ID*/ typename msvc_extract_type<CCountOf<type >::count, type>::id2type, \
+ /*increment compile-time Counter*/ CCounter<CCountOf<type >::count>, \
+ /*pass value of Counter*/CCountOf<type >::count \
+ >::value)
+
+ // Lets type_id() be > than 0
+ class __Increment_type_id { enum { value = unique_type_id(__Increment_type_id) }; };
+
+ // vartypeID() returns a type with sizeof(type_id)
+ template<int NSize> class sized { char m_pad[NSize]; };
+ template<typename T> typename sized<unique_type_id(T)> vartypeID(T&);
+ template<typename T> typename sized<unique_type_id(const T)> vartypeID(const T&);
+ template<typename T> typename sized<unique_type_id(volatile T)> vartypeID(volatile T&);
+ template<typename T> typename sized<unique_type_id(const volatile T)> vartypeID(const volatile T&);
+}
+
+#define typeof(expression) msvc_typeof_impl::msvc_extract_type<sizeof(msvc_typeof_impl::vartypeID(expression))>::id2type::type
+#endif
+
+#endif
+
Please sign in to comment.
Something went wrong with that request. Please try again.