[C] 让VC支持C99的整数类型V1.01。避免包含目录问题，更名auto_stdint.h、auto_inttypes.h（在VC6至VC2012、GCC、BCB等编译器下测试通过）...

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发布时间：2019-06-25

本文共 18585 字，大约阅读时间需要 61 分钟。

作者：

　　以前我曾为了让VC++等编译器支持C99的整数类型，编写了同名的stdint.h、inttypes.h来智能处理（）。现在将其升级到v1.01版。

一、改动说明

1.1 包含目录问题

　　在1.00版，我编写的头文件与系统头文件同名，利用“#include "XXX"”与“#include <XXX>”的区别，使其智能使用系统头文件。

　　这样做的优点是基本不需改动代码（只需将“#include <stdint.h>”改为“#include "stdint.h"”），而且易读性好，一看就知道是C99整数类型。

　　后来使用时发现该方案存在包含目录问题——我的stdint.h、inttypes.h不能放在项目include目录中。

　　这是因为“#include <XXX>”时会优先检查项目include目录，而后才是系统include目录。

　　如果将我的stdint.h、inttypes.h放在项目include目录中，会导致循环引用，无法定位到系统头文件。

　　所以，只能将我的stdint.h、inttypes.h放在项目src目录。

　　当项目较大时，会建立多级子目录来存放源码。这时只有将stdint.h、inttypes.h复制到各个子目录中，管理起来不方便。

　　于是我决定将我的stdint.h、inttypes.h分辨改名为auto_stdint.h、auto_inttypes.h，这样就可以放在项目include目录中了。缺点是使用时麻烦一点，要包含auto_stdint.h、auto_inttypes.h。

　　既然文件改名了，宏也要改名——

__AUTO_STDINT_H_INCLUDED（原_STDINT_H_ALL_）。

__AUTO_STDINT_H_USESYS（原_STDINT_H_SYS_）。

__AUTO_INTTYPES_H_INCLUDED（原_INTTYPES_H_ALL_）。

__AUTO_INTTYPES_H_USESYS（原_INTTYPES_H_SYS_）。

1.2 编译器兼容性

　　测试了 Visual C++ 2008。发现它果然不支持stdint.h与inttypes.h。

　　测试了 Visual C++ 2012。发现它支持stdint.h，仍不支持inttypes.h。

二、全部代码

　　文件清单——

auto_inttypes.h

auto_stdint.h

c99int.c

c99int.dsp

c99int.dsw

c99int_2003.sln

c99int_2003.vcproj

c99int_2005.sln

c99int_2005.vcproj

c99int_2008.sln

c99int_2008.vcproj

c99int_2010.sln

c99int_2010.vcxproj

c99int_2010.vcxproj.filters

c99int_2010.vcxproj.user

c99int_2012.sln

c99int_2012.vcxproj

c99int_2012.vcxproj.filters

c99int_bcb.bpf

c99int_bcb.bpr

c99int_bcb.res

makefile

2.1 auto_stdint.h

　　全部代码——

/*auto_stdint.h: 兼容C99标准的stdint.hAuthor: zyl910Blog: http://www.cnblogs.com/zyl910URL: http://www.cnblogs.com/zyl910/archive/2013/01/10/c99int_v101.htmlVersion: V1.01Updata: 2013-01-10测试过的编译器--VC: 6, 2003, 2005, 2008, 2010, 2012.BCB: 6.GCC(Linux): 4.7.0(Fedora 17).GCC(Mac): llvm-gcc-4.2(Mac OS X Lion 10.7.4, Xcode 4.4.1).GCC(MinGW): 4.6.2(MinGW(20120426)), 4.7.1(TDM-GCC(MinGW-w64)).Update~~~~~~[2013-01-01] V1.01* 检查了对VC2008、VC2012的兼容性. 确认VC2008不支持stdint.h.* 为了避免包含目录问题，更名auto_stdint.h（原stdint.h）.* 更改宏名：__AUTO_STDINT_H_INCLUDED（原_STDINT_H_ALL_），__AUTO_STDINT_H_USESYS（原_STDINT_H_SYS_）.[2012-08-08] V1.0* V1.0发布.* 参考了 msinttypes-r26. http://code.google.com/p/msinttypes/* 修正了 VC6编译C++程序时wchar.h会报错 问题.*/#ifndef __AUTO_STDINT_H_INCLUDED#define __AUTO_STDINT_H_INCLUDED// __AUTO_STDINT_H_USESYS: 编译器是否提供了
     
      #undef __AUTO_STDINT_H_USESYS#if defined(__GNUC__)    // GCC.    #define __AUTO_STDINT_H_USESYS#elif defined(_MSC_VER)    // MSVC. VC6至VC2008均没有, 从VC2010才支持的.    #if _MSC_VER >=1600    // VC2010        #define __AUTO_STDINT_H_USESYS    #endif    // #if _MSC_VER >=1600    // VC2010#elif defined(__BORLANDC__)    // BCB. BCB6是支持的.    #if __BORLANDC__ >=0x0560    // BCB6        #define __AUTO_STDINT_H_USESYS    #endif    // #if __BORLANDC__ >=0x0560    // BCB6#else    #define _INTTYPES_H_SYS_    // 假设其他编译器支持C99.#endif    // __AUTO_STDINT_H_USESYS#ifdef __AUTO_STDINT_H_USESYS// 使用编译器提供的
      
       #include 
       
        #else// 采用自定义的stdint.h. 参考了 msinttypes: http://code.google.com/p/msinttypes/#ifndef _MSC_STDINT_H_ // [#define _MSC_STDINT_H_#include 
        
         // For Visual Studio 6 in C++ mode and for many Visual Studio versions when// compiling for ARM we should wrap 
         
           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 
          
           //#ifdef __cplusplus//}//#endif// 
           
            : 在VC6下测试时, 发现上面的方法会报告很多C2733错误. 还是直接include算了.#include 
            
             // 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;#endiftypedef signed __int64 int64_t;typedef unsigned __int64 uint64_t;// 7.18.1.2 Minimum-width integer typestypedef 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 typestypedef 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 typestypedef 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 
             
              #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_ ]#endif // #ifdef __AUTO_STDINT_H_USESYS#endif // #ifndef __AUTO_STDINT_H_INCLUDED

2.2 auto_inttypes.h

　　全部代码——

/*auto_inttypes.h: 兼容C99标准的inttypes.hAuthor: zyl910Blog: http://www.cnblogs.com/zyl910URL: http://www.cnblogs.com/zyl910/archive/2013/01/10/c99int_v101.htmlVersion: V1.01Updata: 2013-01-10测试过的编译器--VC: 6, 2003, 2005, 2008, 2010, 2012.BCB: 6.GCC(Linux): 4.7.0(Fedora 17).GCC(Mac): llvm-gcc-4.2(Mac OS X Lion 10.7.4, Xcode 4.4.1).GCC(MinGW): 4.6.2(MinGW(20120426)), 4.7.1(TDM-GCC(MinGW-w64)).Update~~~~~~[2013-01-10] V1.01* 检查了对VC2008、VC2012的兼容性. 确认VC2012仍不支持inttypes.h.* 为了避免包含目录问题，更名auto_stdint.h（原stdint.h）.* 更改宏名：__AUTO_INTTYPES_H_INCLUDED（原_INTTYPES_H_ALL_），__AUTO_INTTYPES_H_USESYS（原_INTTYPES_H_SYS_）.[2012-08-08] V1.00* V1.0发布.* 参考了 msinttypes-r26. http://code.google.com/p/msinttypes/* 修正VC6不支持I32问题.*/#ifndef __AUTO_INTTYPES_H_INCLUDED#define __AUTO_INTTYPES_H_INCLUDED// __AUTO_INTTYPES_H_USESYS: 编译器是否提供了
     
      #undef __AUTO_INTTYPES_H_USESYS#if defined(__GNUC__)    // GCC.    #define __AUTO_INTTYPES_H_USESYS#elif defined(_MSC_VER)    // MSVC. VC2012仍不支持.#elif defined(__BORLANDC__)    // BCB. BCB6仍不支持.#else    #define __AUTO_INTTYPES_H_USESYS    // 假设其他编译器支持C99.#endif    // __AUTO_INTTYPES_H_USESYS#ifdef __AUTO_INTTYPES_H_USESYS// 使用编译器提供的
      
       #include 
       
        #else// 采用自定义的inttypes.h. 参考了 msinttypes: http://code.google.com/p/msinttypes/#ifndef _MSC_INTTYPES_H_ // [#define _MSC_INTTYPES_H_//#include "stdint.h"#include "auto_stdint.h"// 7.8 Format conversion of integer typestypedef 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"#if defined(_MSC_VER) && _MSC_VER<=1200    // VC6#define PRId32       "d"#define PRIi32       "i"#define PRIdLEAST32  "d"#define PRIiLEAST32  "i"#define PRIdFAST32   "d"#define PRIiFAST32   "i"#else#define PRId32       "I32d"#define PRIi32       "I32i"#define PRIdLEAST32  "I32d"#define PRIiLEAST32  "I32i"#define PRIdFAST32   "I32d"#define PRIiFAST32   "I32i"#endif#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"#if defined(_MSC_VER) && _MSC_VER<=1200    // VC6#define PRIo32       "o"#define PRIu32       "u"#define PRIx32       "x"#define PRIX32       "X"#define PRIoLEAST32  "o"#define PRIuLEAST32  "u"#define PRIxLEAST32  "x"#define PRIXLEAST32  "X"#define PRIoFAST32   "o"#define PRIuFAST32   "u"#define PRIxFAST32   "x"#define PRIXFAST32   "X"#else#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"#endif#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#ifdef _MSC_VER// 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;}#endif  // #ifdef _MSC_VER// 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_ ]#endif // #ifdef __AUTO_INTTYPES_H_USESYS#endif // #ifndef __AUTO_INTTYPES_H_INCLUDED

2.3 c99int.c

　　全部代码——

/*c99int.c: 测试C99整数类型.Author: zyl910Blog: http://www.cnblogs.com/zyl910URL: http://www.cnblogs.com/zyl910/archive/2013/01/10/c99int_v101.htmlVersion: V1.01Updata: 2013-01-01Update~~~~~~[2013-01-10] V1.01* 使用V1.01版的auto_stdint.h、auto_inttypes.h。[2012-08-08] V1.0* V1.0发布.*/#define __STDC_LIMIT_MACROS#define __STDC_CONSTANT_MACROS#define __STDC_FORMAT_MACROS#include 
     
      #include 
      
       #include "auto_stdint.h"#include "auto_inttypes.h"int main(int argc, char* argv[]){    uint8_t i8 = (uint8_t)INT8_C(-1);    uint16_t i16 = (uint16_t)INT16_C(-1);    uint32_t i32 = (uint32_t)INT32_C(-1);    uint64_t i64 = (uint64_t)INT64_C(-1);    printf("c99int:\t%" PRIu8 ", %" PRIu16 ", %" PRIu32 ", %" PRIu64 "\n", i8, i16, i32, i64);    return 0;}

2.4 makefile

　　全部代码——

# flagsCC = gccCFS = -Wall# argsRELEASE =0UNICODE =0BITS =CFLAGS =# [args] 生成模式. 0代表debug模式, 1代表release模式. make RELEASE=1.ifeq ($(RELEASE),0)    # debug    CFS += -gelse    # release    CFS += -O3 -DNDEBUG    //CFS += -O3 -g -DNDEBUGendif# [args] UNICODE模式. 0代表ansi模式, 1代表unicode模式. make UNICODE=1.ifeq ($(UNICODE),0)    # ansi    CFS +=else    # unicode    CFS += -D_UNICODE -DUNICODEendif# [args] 程序位数. 32代表32位程序, 64代表64位程序, 其他默认. make BITS=32.ifeq ($(BITS),32)    CFS += -m32else    ifeq ($(BITS),64)        CFS += -m64    else    endifendif# [args] 使用 CFLAGS 添加新的参数. make CFLAGS="-mavx".CFS += $(CFLAGS).PHONY : all clean# filesTARGETS = c99intOBJS = c99int.oall : $(TARGETS)c99int : $(OBJS)    $(CC) -o $@ $^ $(CFS)c99int.o : c99int.c    $(CC) -c $< $(CFS)clean :    rm -f $(OBJS) $(TARGETS) $(addsuffix .exe,$(TARGETS))