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Predefined Macros 본문

작업/OvmStart(2010)

Predefined Macros

hotdigi 2010. 10. 19. 10:58
SMALL

http://msdn.microsoft.com/en-us/library/b0084kay(v=VS.80).aspx

Predefined Macros

Visual Studio 2005

Names the predefined ANSI C and Microsoft C++ implementation macros.

The compiler recognizes predefined ANSI C macros and the Microsoft C++ implementation provides several more. These macros take no arguments and cannot be redefined. Some of the predefined macros listed below are defined with multiple values. See the following tables for more information.

ANSI-Compliant Predefined Macros
Macro Description

__DATE__

The compilation date of the current source file. The date is a string literal of the form Mmm dd yyyy. The month name Mmm is the same as for dates generated by the library function asctime declared in TIME.H.

__FILE__

The name of the current source file. __FILE__ expands to a string surrounded by double quotation marks. To ensure that the full path to the file is displayed, use /FC (Full Path of Source Code File in Diagnostics).

You can create your own wide string version of __FILE__ as follows:

Copy
#include <stdio.h>
#define WIDEN2(x) L ## x
#define WIDEN(x) WIDEN2(x)
#define __WFILE__ WIDEN(__FILE__)
wchar_t *pwsz = __WFILE__;

int main() {}

__LINE__

The line number in the current source file. The line number is a decimal integer constant. It can be altered with a #line directive.

__STDC__

Indicates full conformance with the ANSI C standard. Defined as the integer constant 1 only if the /Za compiler option is given and you are not compiling C++ code; otherwise is undefined.

__TIME__

The most recent compilation time of the current source file. The time is a string literal of the form hh:mm:ss.

__TIMESTAMP__

The date and time of the last modification of the current source file, expressed as a string literal in the form Ddd Mmm Date hh:mm:ss yyyy, where Ddd is the abbreviated day of the week and Date is an integer from 1 to 31.

Microsoft-Specific Predefined Macros
Macro Description

_ATL_VER

Defines the ATL version.

_CHAR_UNSIGNED

Default char type is unsigned. Defined when /J is specified.

__CLR_VER

Defines the version of the common language runtime used when the application was compiled. The value returned will be in the following format:

Mmmbbbbb

where,

M is the major version of the runtime.

mm is the minor version of the runtime.

bbbbb is the build number.

Copy
// clr_ver.cpp
// compile with: /clr
using namespace System;
int main() {
   Console::WriteLine(__CLR_VER);
}

__cplusplus_cli

Defined when compiling with /clr, /clr:pure, or /clr:safe. Value of __cplusplus_cli is 200406. __cplusplus_cli is in effect throughout the translation unit.

Copy
// cplusplus_cli.cpp
// compile with: /clr
#include "stdio.h"
int main() {
   #ifdef __cplusplus_cli
      printf("%d\n", __cplusplus_cli);
   #else
      printf("not defined\n");
   #endif
}

__COUNTER__

Expands to an integer starting with 0 and incrementing by 1 every time it is used in a compiland. __COUNTER__ remembers its state when using precompiled headers. If the last __COUNTER__ value was 4 after building a precompiled header (PCH), it will start with 5 on each PCH use.

__COUNTER__ lets you generate unique variable names. You can use token pasting with a prefix to make a unique name. For example:

Copy
// pre_mac_counter.cpp
#include <stdio.h>
#define FUNC2(x,y) x##y
#define FUNC1(x,y) FUNC2(x,y)
#define FUNC(x) FUNC1(x,__COUNTER__)

int FUNC(my_unique_prefix);
int FUNC(my_unique_prefix);

int main() {
   my_unique_prefix0 = 0;
   printf_s("\n%d",my_unique_prefix0);
   my_unique_prefix0++;
   printf_s("\n%d",my_unique_prefix0);
}

__cplusplus

Defined for C++ programs only.

_CPPLIB_VER

Defined if you include any of the C++ Standard Library headers; reports which version of the Dinkumware header files are present.

_CPPRTTI

Defined for code compiled with /GR (Enable Run-Time Type Information).

_CPPUNWIND

Defined for code compiled with /GX (Enable Exception Handling).

_DEBUG

Defined when compiling with /LDd, /MDd, and /MTd.

_DLL

Defined when /MD or /MDd (Multithread DLL) is specified.

__FUNCDNAME__

Valid only within a function and returns the decorated name of the enclosing function (as a string). __FUNCDNAME__ is not expanded if you use the /EP or /P compiler option.

__FUNCSIG__

Valid only within a function and returns the signature of the enclosing function (as a string). __FUNCSIG__ is not expanded if you use the /EP or /P compiler option.

On a 64-bit operating system, the calling convention is __cdecl by default.

__FUNCTION__

Valid only within a function and returns the undecorated name of the enclosing function (as a string). __FUNCTION__ is not expanded if you use the /EP or /P compiler option.

_INTEGRAL_MAX_BITS

Reports the maximum size (in bits) for an integral type.

Copy
// integral_max_bits.cpp
#include <stdio.h>
int main() {
   printf("%d\n", _INTEGRAL_MAX_BITS);
}

_M_ALPHA

Defined for DEC ALPHA platforms (no longer supported).

_M_CEE

Defined for a compilation that uses any form of /clr (/clr:oldSyntax, /clr:safe, for example).

_M_CEE_PURE

Defined for a compilation that uses /clr:pure.

_M_CEE_SAFE

Defined for a compilation that uses /clr:safe.

_M_IX86

Defined for x86 processors. See Values for _M_IX86 for more details.

_M_IA64

Defined for Itanium Processor Family 64-bit processors.

_M_IX86_FP

Expands to a value indicating which /arch compiler option was used:

_M_MPPC

Defined for Power Macintosh platforms (no longer supported).

_M_MRX000

Defined for MIPS platforms (no longer supported).

_M_PPC

Defined for PowerPC platforms (no longer supported).

_M_X64

Defined for x64 processors.

_MANAGED

Defined to be 1 when /clr is specified.

_MFC_VER

Defines the MFC version. For example, 0x0700 represents MFC version 7.

_MSC_EXTENSIONS

This macro is defined when compiling with the /Ze compiler option (the default). Its value, when defined, is 1.

_MSC_VER

Reports the major and minor versions of the compiler. For example, 1310 for Microsoft Visual C++ .NET 2003. 1310 represents version 13 and a 1.0 point release. The Visual C++ 2005 compiler version is 1400.

Type cl /? at the command line to see the major and minor versions of your compiler along with the build number.

__MSVC_RUNTIME_CHECKS

Defined when one of the /RTC compiler options is specified.

_MT

Defined when /MD or /MDd (Multithreaded DLL) or /MT or /MTd (Multithreaded) is specified.

_NATIVE_WCHAR_T_DEFINED

Defined when /Zc:wchar_t is used.

_OPENMP

Defined when compiling with /openmp, returns an integer representing the date of the OpenMP specification implemented by Visual C++.

Copy
// _OPENMP_dir.cpp
// compile with: /openmp 
#include <stdio.h> 
int main() {
   printf("%d\n", _OPENMP);
}

_VC_NODEFAULTLIB

Defined when /Zl is used; see /Zl (Omit Default Library Name) for more information.

_WCHAR_T_DEFINED

Defined when /Zc:wchar_t is used or if wchar_t is defined in a system header file included in your project.

_WIN32

Defined for applications for Win32 and Win64. Always defined.

_WIN64

Defined for applications for Win64.

_Wp64

Defined when specifying /Wp64.

As shown in following table, the compiler generates a value for the preprocessor identifiers that reflect the processor option specified.

Values for _M_IX86
Option in Development Environment Command-Line Option Resulting Value

Blend

/GB

_M_IX86 = 600 (Default. Future compilers will emit a different value to reflect the dominant processor.)

Pentium

/G5

_M_IX86 = 500

Pentium Pro, Pentium II, and Pentium III

/G6

_M_IX86 = 600

80386

/G3

_M_IX86 = 300

80486

/G4

_M_IX86 = 400

See Also

Reference

Macros (C/C++)
Preprocessor Operators
Preprocessor Directives

Community ContentAdd
AnnotationsFAQ
Using Microsoft-Specific Predefined Preprocessor Macros

A sample function that uses ANSI-Compliant Predefined Preprocessor Macros:

bool CPreprocessingDlg::UseMicrosoftSpecificPredefinedMacros(void)

{

    // Using Microsoft-Specific Predefined Preprocessor Macros

    // Ref: http://msdn.microsoft.com/en-us/library/b0084kay(VS.80).aspx

    TCHAR buffer[MAX_PATH];

    CString m_strOutput;

    m_strOutput += "\r\n\r\n";

    m_strOutput += "-- Microsoft-Specific Predefined Macros --";

    // _ATL_VER - Defines the ATL version.

    m_strOutput += "\r\n";

    swprintf_s(buffer, MAX_PATH, TEXT("ATL Version: 0x%0.4X"), _ATL_VER);

    m_strOutput += buffer;

    // _CHAR_UNSIGNED - Default char type is unsigned. Defined when /J is specified.

    m_strOutput += "\r\n";

    m_strOutput += "Default char Type Is unsigned [_CHAR_UNSIGNED]: ";

#ifdef _CHAR_UNSIGNED

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _CHAR_UNSIGNED);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("NO"));

#endif

    m_strOutput += buffer;

    // __CLR_VER - Defines the version of the common language runtime used

    // when the application was compiled. The value returned will be in

    // the following format: Mmmbbbbb

    // where,

    // M is the major version of the runtime.

    // mm is the minor version of the runtime.

    // bbbbb is the build number.

    m_strOutput += "\r\n";

    m_strOutput += "Common Language Runtime Version [__CLR_VER]: ";

#ifdef __CLR_VER

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), __CLR_VER);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("UNDEFINED"));

#endif

    m_strOutput += buffer;

    // __cplusplus_cli - Defined when compiling with /clr, /clr:pure, or /clr:safe.

    // Value of __cplusplus_cli is 200406.

    // __cplusplus_cli is in effect throughout the translation unit.

    m_strOutput += "\r\n";

    m_strOutput += "__cplusplus_cli: ";

#ifdef __cplusplus_cli

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), __cplusplus_cli);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("NO"));

#endif

    m_strOutput += buffer;

    // __cplusplus - Defined for C++ programs only.

    m_strOutput += "\r\n";

    m_strOutput += "C++ Program [__cplusplus]: ";

#ifdef __cplusplus

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), __cplusplus);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("NO"));

#endif

    m_strOutput += buffer;

    // _CPPLIB_VER - Defined if you include any of the C++ Standard Library headers.

    // Reports which version of the Dinkumware header files are present.

    m_strOutput += "\r\n";

    m_strOutput += "C++ Standard Library Header Version [_CPPLIB_VER]: ";

#ifdef _CPPLIB_VER

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), _CPPLIB_VER);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("UNDEFINED"));

#endif

    m_strOutput += buffer;

    // _CPPRTTI - Defined for code compiled with /GR (Enable Run-Time Type Information)

    m_strOutput += "\r\n";

    m_strOutput += "Enable Run-Time Type Information [_CPPRTTI]: ";

#ifdef _CPPRTTI

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _CPPRTTI);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("UNDEFINED"));

#endif

    m_strOutput += buffer;

    // _CPPUNWIND - Defined for code compiled with /GX (Enable Exception Handling).

    m_strOutput += "\r\n";

    m_strOutput += "Enable Exception Handling [_CPPUNWIND]: ";

#ifdef _CPPUNWIND

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _CPPUNWIND);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("UNDEFINED"));

#endif

    m_strOutput += buffer;

    // _DEBUG - Defined when compiling with /LDd, /MDd, and /MTd.

    m_strOutput += "\r\n";

    m_strOutput += "Debug Mode [_DEBUG]: ";

#ifdef _DEBUG

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _DEBUG);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("NO"));

#endif

    m_strOutput += buffer;

    // _DLL - Defined when /MD or /MDd (Multithread DLL) is specified.

    m_strOutput += "\r\n";

    m_strOutput += "Multithread DLL [_DLL]: ";

#ifdef _DLL

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _DLL);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("NO"));

#endif

    m_strOutput += buffer;

    // __FUNCDNAME__ - Valid only within a function and returns the decorated

    // name of the enclosing function (as a string). __FUNCDNAME__ is not

    // expanded if you use the /EP or /P compiler option.

    m_strOutput += "\r\n";

    m_strOutput += "Function name (decorated) [__FUNCDNAME__]: ";

#ifdef __FUNCDNAME__

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT(__FUNCDNAME__));

#else

    swprintf_s(buffer, MAX_PATH, TEXT("UNDEFINED"));

#endif

    m_strOutput += buffer;

    // __FUNCSIG__ - Valid only within a function and returns the signature of the

    // enclosing function (as a string). __FUNCSIG__ is not expanded if you use the

    // /EP or /P compiler option.

    m_strOutput += "\r\n";

    m_strOutput += "Function signature [__FUNCSIG__]: ";

#ifdef __FUNCSIG__

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT(__FUNCSIG__));

#else

    swprintf_s(buffer, MAX_PATH, TEXT("UNDEFINED"));

#endif

    m_strOutput += buffer;

    // __FUNCTION__ - Valid only within a function and returns the undecorated name of the enclosing

    // function (as a string). __FUNCTION__ is not expanded if you use the /EP or /P

    // compiler option.

    m_strOutput += "\r\n";

    m_strOutput += "Function name [__FUNCTION__]: ";

#ifdef __FUNCTION__

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT(__FUNCTION__));

#else

    swprintf_s(buffer, MAX_PATH, TEXT("UNDEFINED"));

#endif

    m_strOutput += buffer;

    // _INTEGRAL_MAX_BITS - Reports the maximum size (in bits) for an integral type.

    m_strOutput += "\r\n";

    m_strOutput += "Integral type maximum size (in bits) [_INTEGRAL_MAX_BITS]: ";

#ifdef _INTEGRAL_MAX_BITS

    swprintf_s(buffer, MAX_PATH, TEXT("%d"), _INTEGRAL_MAX_BITS);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("Undefined"));

#endif

    m_strOutput += buffer;

    // _M_ALPHA - Defined for DEC ALPHA platforms. It is defined as 1 by the ALPHA compiler, and

    // it is not defined if another compiler is used.

    m_strOutput += "\r\n";

    m_strOutput += "DEC ALPHA Platform [_M_ALPHA]: ";

#ifdef _M_ALPHA

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _M_ALPHA);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("NO"));

#endif

    m_strOutput += buffer;

    // _M_CEE - Defined for a compilation that uses any form of /clr (/clr:oldSyntax, /clr:safe,

    // for example).

    m_strOutput += "\r\n";

    m_strOutput += "Common Language Runtime Compilation [_M_CEE]: ";

#ifdef _M_CEE

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _M_CEE);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("NO"));

#endif

    m_strOutput += buffer;

    // _M_CEE_PURE - Defined for a compilation that uses /clr:pure.

    m_strOutput += "\r\n";

    m_strOutput += "Common Language Runtime Pure Compilation [_M_CEE_PURE]: ";

#ifdef _M_CEE_PURE

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _M_CEE_PURE);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("NO"));

#endif

    m_strOutput += buffer;

    // _M_CEE_SAFE - Defined for a compilation that uses /clr:safe.

    m_strOutput += "\r\n";

    m_strOutput += "Common Language Runtime Safe Compilation [_M_CEE_SAFE]: ";

#ifdef _M_CEE_SAFE

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _M_CEE_SAFE);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("NO"));

#endif

    m_strOutput += buffer;

    // _M_IX86 - Defined for x86 processors. See Values for _M_IX86 for more details.

    // Blend: /GB: _M_IX86 = 600 (Default. Future compilers will emit a different value to reflect the dominant processor.)

    // Pentium: /G5: _M_IX86 = 500

    // Pentium Pro, Pentium II, and Pentium III: /G6: _M_IX86 = 600

    // 80386: /G3: _M_IX86 = 300

    // 80486: /G4: _M_IX86 = 400

    m_strOutput += "\r\n";

    m_strOutput += "Minimum CPU Architecture [_M_IX86]: ";

#ifdef _M_IX86

    if (600 == _M_IX86)

        swprintf_s(buffer, MAX_PATH, TEXT("%d - Blend (/GB) or Pentium Pro, Pentium II, Pentium III (/G6)"), _M_IX86);

    else if (500 == _M_IX86)

        swprintf_s(buffer, MAX_PATH, TEXT("%d - Pentium (/G5)"), _M_IX86);

    else if (300 == _M_IX86)

        swprintf_s(buffer, MAX_PATH, TEXT("%d - 80386 (/G3)"), _M_IX86);

    else if (400 == _M_IX86)

        swprintf_s(buffer, MAX_PATH, TEXT("%d - 80486 (/G4)"), _M_IX86);

    else

        swprintf_s(buffer, MAX_PATH, TEXT("%d - Unknown"), _M_IX86);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("Undefined"));

#endif

    m_strOutput += buffer;

    // _M_IA64 - Defined for Itanium Processor Family 64-bit processors.

    m_strOutput += "\r\n";

    m_strOutput += "Itanium Processor Family 64-bit [_M_IA64]: ";

#ifdef _M_IA64

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _M_IA64);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("NO"));

#endif

    m_strOutput += buffer;

    // _M_IX86_FP - Expands to a value indicating which /arch compiler option was used:

    // 0 if /arch was not used.

    // 1 if /arch:SSE was used.

    // 2 if /arch:SSE2 was used.

    m_strOutput += "\r\n";

    m_strOutput += "Minimum CPU Architecture [_M_IX86_FP]: ";

#ifdef _M_IX86_FP

    if (0 == _M_IX86_FP)

        swprintf_s(buffer, MAX_PATH, TEXT("%d - %s"), _M_IX86_FP, TEXT("NO Streaming SIMD Extensions"));

    else if (1 == _M_IX86_FP)

        swprintf_s(buffer, MAX_PATH, TEXT("%d - %s"), _M_IX86_FP, TEXT("Streaming SIMD Extensions (/arch:SSE)"));

    else if (2 == _M_IX86_FP)

        swprintf_s(buffer, MAX_PATH, TEXT("%d - %s"), _M_IX86_FP, TEXT("Streaming SIMD Extensions 2 (/arch:SSE2)"));

    else

        swprintf_s(buffer, MAX_PATH, TEXT("%d - %s"), _M_IX86_FP, TEXT("UNKNOWN"));

#else

    swprintf_s(buffer, MAX_PATH, TEXT("UNDEFINED"));

#endif

    m_strOutput += buffer;

    // Defined for Power Macintosh platforms (no longer supported).

    m_strOutput += "\r\n";

    m_strOutput += "Power Macintosh Platform [_M_MPPC]: ";

#ifdef _M_MPPC

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _M_MPPC);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT("NO"));

#endif

    m_strOutput += buffer;

    // Defined for MIPS platforms (no longer supported).

    m_strOutput += "\r\n";

    m_strOutput += "MIPS Platform (_M_MRX000): ";

#ifdef _M_MRX000

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _M_MRX000);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT("NO"));

#endif

    m_strOutput += buffer;

    // Defined for PowerPC platforms (no longer supported).

    m_strOutput += "\r\n";

    m_strOutput += "PowerPC Platform [_M_PPC]: ";

#ifdef _M_PPC

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _M_PPC);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT("NO"));

#endif

    m_strOutput += buffer;

    // Defined for x64 processors.

    m_strOutput += "\r\n";

    m_strOutput += "x64 Platform [_M_X64]: ";

#ifdef _M_X64

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _M_X64);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT("NO"));

#endif

    m_strOutput += buffer;

    // _MANAGED = Defined to be 1 when /clr is specified.

    m_strOutput += "\r\n";

    m_strOutput += "Managed Code [_MANAGED]: ";

#ifdef _MANAGED

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _MANAGED);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT("NO"));

#endif

    m_strOutput += buffer;

    // _MFC_VER - Defines the MFC version. For example, 0x0700 represents MFC version 7.

    m_strOutput += "\r\n";

    m_strOutput += "MFC Version [_MFC_VER]: ";

#ifdef _MFC_VER

    swprintf_s(buffer, MAX_PATH, TEXT("0x%0.4X"), _MFC_VER);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT("UNDEFINED"));

#endif

    m_strOutput += buffer;

    // _MSC_EXTENSIONS - Defined when compiling with the /Ze compiler option (the default).

    // Its value, when defined, is 1.

    m_strOutput += "\r\n";

    m_strOutput += "Microsoft Language Extensions [_MSC_EXTENSIONS]: ";

#ifdef _MSC_EXTENSIONS

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("ENABLED"), _MSC_EXTENSIONS);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT("DISABLED"));

#endif

    m_strOutput += buffer;

    // _MSC_VER - Reports the major and minor versions of the compiler.

    // For example, 1310 for Microsoft Visual C++ .NET 2003.

    // 1310 represents version 13 and a 1.0 point release.

    // The current compiler version is 1400.

    m_strOutput += "\r\n";

    m_strOutput += "Microsoft Compiler Version (_MSC_VER): ";

#ifdef _MSC_VER

    swprintf_s(buffer, MAX_PATH, TEXT("%d"), _MSC_VER);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT("UNDEFINED"));

#endif

    m_strOutput += buffer;

    // __MSVC_RUNTIME_CHECKS - Defined when one of the /RTC compiler options is specified.

    m_strOutput += "\r\n";

    m_strOutput += "Run-Time Error Checks (__MSVC_RUNTIME_CHECKS): ";

#ifdef __MSVC_RUNTIME_CHECKS

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("ENABLED"), __MSVC_RUNTIME_CHECKS);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT("DISABLED"));

#endif

    m_strOutput += buffer;

    // Defined when /MD or /MDd (Multithreaded DLL) or /MT or /MTd (Multithreaded) is specified.

    m_strOutput += "\r\n";

    m_strOutput += "Multithreaded (_MT): ";

#ifdef _MT

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _MT);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT("NO"));

#endif

    m_strOutput += buffer;

    // _NATIVE_WCHAR_T_DEFINED - Defined when /Zc:wchar_t is used.

    m_strOutput += "\r\n";

    m_strOutput += "wchar_t Is Native Type (_NATIVE_WCHAR_T_DEFINED): ";

#ifdef _NATIVE_WCHAR_T_DEFINED

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _NATIVE_WCHAR_T_DEFINED);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT("NO"));

#endif

    m_strOutput += buffer;

    // _OPENMP - Defined when compiling with /openmp, returns an integer representing the date of

    // the OpenMP specification implemented by Visual C++.

    // _OPENMP_dir.cpp

    // compile with: /openmp

    // #include <stdio.h>

    // int main() { printf("%d\n", _OPENMP); }sdOutput200203

    m_strOutput += "\r\n";

    m_strOutput += "OpenMP Specification Date (_OPENMP): ";

#ifdef _OPENMP

    swprintf_s(buffer, MAX_PATH, TEXT("%d"), _OPENMP);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT("UNDEFINED"));

#endif

    m_strOutput += buffer;

    // _VC_NODEFAULTLIB - Defined when /Zl is used; see /Zl (Omit Default Library Name) for more information.

    m_strOutput += "\r\n";

    m_strOutput += "Omit Default Library Name (_VC_NODEFAULTLIB): ";

#ifdef _VC_NODEFAULTLIB

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _VC_NODEFAULTLIB);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT("NO"));

#endif

    m_strOutput += buffer;

    // _WCHAR_T_DEFINED - Defined when /Zc:wchar_t is used or if wchar_t is defined in a system header

    // file included in your project.

    m_strOutput += "\r\n";

    m_strOutput += "wchar_t Is Native Type (_WCHAR_T_DEFINED): ";

#ifdef _WCHAR_T_DEFINED

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _WCHAR_T_DEFINED);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT("NO"));

#endif

    m_strOutput += buffer;

    // _WIN32 - Defined for applications for Win32 and Win64. Always defined.

    m_strOutput += "\r\n";

    m_strOutput += "Windows 32-bit (_WIN32): ";

#ifdef _WIN32

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _WIN32);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT("NO"));

#endif

    m_strOutput += buffer;

    // Defined for applications for Win64.

    m_strOutput += "\r\n";

    m_strOutput += "Windows 64-bit (_WIN64): ";

#ifdef _WIN64

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _WIN64);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT("NO"));

#endif

    m_strOutput += buffer;

    // Defined when specifying /Wp64.

    m_strOutput += "\r\n";

    m_strOutput += "Detect 64-Bit Portability Issues (_Wp64): ";

#ifdef _Wp64

    swprintf_s(buffer, MAX_PATH, TEXT("%s (%d)"), TEXT("YES"), _Wp64);

#else

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT("NO"));

#endif

    m_strOutput += buffer;

    return false;

}


When the function finishes m_strOutput contains a string looking something like this:

-- Microsoft-Specific Predefined Macros --

ATL Version: 0x0800

Default char Type Is unsigned [_CHAR_UNSIGNED]: NO

Common Language Runtime Version [__CLR_VER]: UNDEFINED

__cplusplus_cli: NO

C++ Program [__cplusplus]: YES (199711)

C++ Standard Library Header Version [_CPPLIB_VER]: UNDEFINED

Enable Run-Time Type Information [_CPPRTTI]: YES (1)

Enable Exception Handling [_CPPUNWIND]: YES (1)

Debug Mode [_DEBUG]: YES (1)

Multithread DLL [_DLL]: NO

Function name (decorated) [__FUNCDNAME__]: ?UseMicrosoftSpecificPredefinedMacros@CPreprocessingDlg@@AAE_NXZ

Function signature [__FUNCSIG__]: bool __thiscall CPreprocessingDlg::UseMicrosoftSpecificPredefinedMacros(void)

Function name [__FUNCTION__]: CPreprocessingDlg::UseMicrosoftSpecificPredefinedMacros

Integral type maximum size (in bits) [_INTEGRAL_MAX_BITS]: 64

DEC ALPHA Platform [_M_ALPHA]: NO

Common Language Runtime Compilation [_M_CEE]: NO

Common Language Runtime Pure Compilation [_M_CEE_PURE]: NO

Common Language Runtime Safe Compilation [_M_CEE_SAFE]: NO

Minimum CPU Architecture [_M_IX86]: 600 - Blend (/GB) or Pentium Pro, Pentium II, Pentium III (/G6)

Itanium Processor Family 64-bit [_M_IA64]: NO

Minimum CPU Architecture [_M_IX86_FP]: 0 - NO Streaming SIMD Extensions

Power Macintosh Platform [_M_MPPC]: NO

MIPS Platform (_M_MRX000): NO

PowerPC Platform [_M_PPC]: NO

x64 Platform [_M_X64]: NO

Managed Code [_MANAGED]: NO

MFC Version [_MFC_VER]: 0x0800

Microsoft Language Extensions [_MSC_EXTENSIONS]: ENABLED (1)

Microsoft Compiler Version (_MSC_VER): 1400

Run-Time Error Checks (__MSVC_RUNTIME_CHECKS): ENABLED (1)

Multithreaded (_MT): YES (1)

wchar_t Is Native Type (_NATIVE_WCHAR_T_DEFINED): YES (1)

OpenMP Specification Date (_OPENMP): UNDEFINED

Omit Default Library Name (_VC_NODEFAULTLIB): NO

wchar_t Is Native Type (_WCHAR_T_DEFINED): YES (1)

Windows 32-bit (_WIN32): YES (1)

Windows 64-bit (_WIN64): NO

Detect 64-Bit Portability Issues (_Wp64): YES (1)
History
Using ANSI-Compliant Predefined Preprocessor Macros

A sample function that uses ANSI-Compliant Predefined Preprocessor Macros:

bool CPreprocessingDlg::UseANSICompliantPredefinedMacros(void)

{

    // Using ANSI-Compliant Predefined Preprocessor Macros

    TCHAR buffer[MAX_PATH];

    CString m_strOutput;

    m_strOutput += "-- ANSI-Compliant Predefined Macros --";

    m_strOutput += "\r\n";

    m_strOutput += "SOURCE FILE [__FILE__]:";

    m_strOutput += __FILE__;

    m_strOutput += "\r\n";

    m_strOutput += "MODIFIED [__TIMESTAMP__]:";

    m_strOutput += __TIMESTAMP__;

    m_strOutput += "\r\n";

    m_strOutput += "COMPILED [__DATE__]:";

    m_strOutput += __DATE__;

    m_strOutput += " at ";

    m_strOutput += __TIME__;

    m_strOutput += "\r\n";

    m_strOutput += "This is line number [__LINE__]:";

    swprintf_s(buffer, MAX_PATH, TEXT("%d"), __LINE__);

    m_strOutput += buffer;

    m_strOutput += "\r\n";

    m_strOutput += "ANSI C/C++ Standard Conformance [__STDC__]:";

#ifdef __STDC__

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT("YES"));

#else

    swprintf_s(buffer, MAX_PATH, TEXT("%s"), TEXT("NO"));

#endif

    m_strOutput += buffer;

    return false;

}


When the function finishes m_strOutput contains a string looking something like this:

-- ANSI-Compliant Predefined Macros --

SOURCE FILE [__FILE__]:f:\my source code\preprocessing\preprocessing\preprocessingdlg.cpp

MODIFIED [__TIMESTAMP__]:Wed Nov  4 13:24:24 2009

COMPILED [__DATE__]:Nov  4 2009 at 13:24:25

This is line number [__LINE__]:184

ANSI C/C++ Standard Conformance [__STDC__]:NO



History
how to list all predefined macros in any version of Visual C++?
Here's a general question I could not find any answer for: how can I display the names (and values, where applicable) of ALL the predefined macros that are known to cl.exe (the C/C++ compiler) when it starts compiling something? I do not want the macros that get defined via /D switches or that come from headers, but all the built-ins. I make a tool that analyzes source code and that should behave like the compiler (all Visual C++ versions, that is) so I need to know, beforehand, which are all built-ins. For gcc, there's a flag you can use: gcc -dM -E - </dev/null will list all of gcc's builtins, regardless of the gcc version/platform/etc. I need something similar for cl.exe.
History
MIDL generates _M_AMD64 ifdef
I've got a reference to _M_AMD64 showing up in the _p.c output of MIDL when building with VS2005 SP1 or VS2008 SP1. Most unpleasant.
History
Earlier Version Info

See http://support.microsoft.com/kb/65472 for more info for earlier versions

History
_M_X64 and _M_AMD64
I have two machines running XP x64 - the first has VS 2005 installed and the second just the Platform SDK for Win Server 2003 SP1. When running cl.exe, I noticed that on the first, _M_X64 seems to be defined, as stated on this site. On the second it's not defined, but _M_AMD64 is defined instead which isn't even mentioned on this site. This should be clarified IMHO.
History
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