typedef intptr_t??????? ngx_int_t;
typedef uintptr_t?????? ngx_uint_t;
typedef intptr_t??????? ngx_flag_t;

intptr_t在

# /usr/include/stdint.h

中，下面是stdint.h部分代碼

#ifndef _STDINT_H
#define _STDINT_H	1#include <features.h>
#include <bits/wchar.h>
#include <bits/wordsize.h>/* Exact integral types.  *//* Signed.  *//* There is some amount of overlap with <sys/types.h> as known by inet code */
#ifndef __int8_t_defined
# define __int8_t_defined
typedef signed char		int8_t;
typedef short int		int16_t;
typedef int			int32_t;
# if __WORDSIZE == 64
typedef long int		int64_t;
# else
__extension__
typedef long long int		int64_t;
# endif
#endif/* Unsigned.  */
typedef unsigned char		uint8_t;
typedef unsigned short int	uint16_t;
#ifndef __uint32_t_defined
typedef unsigned int		uint32_t;
# define __uint32_t_defined
#endif
#if __WORDSIZE == 64
typedef unsigned long int	uint64_t;
#else
__extension__
typedef unsigned long long int	uint64_t;
#endif/* Small types.  *//* Signed.  */
typedef signed char		int_least8_t;
typedef short int		int_least16_t;
typedef int			int_least32_t;
#if __WORDSIZE == 64
typedef long int		int_least64_t;
#else
__extension__
typedef long long int		int_least64_t;
#endif/* Unsigned.  */
typedef unsigned char		uint_least8_t;
typedef unsigned short int	uint_least16_t;
typedef unsigned int		uint_least32_t;
#if __WORDSIZE == 64
typedef unsigned long int	uint_least64_t;
#else
__extension__
typedef unsigned long long int	uint_least64_t;
#endif/* Fast types.  *//* Signed.  */
typedef signed char		int_fast8_t;
#if __WORDSIZE == 64
typedef long int		int_fast16_t;
typedef long int		int_fast32_t;
typedef long int		int_fast64_t;
#else
typedef int			int_fast16_t;
typedef int			int_fast32_t;
__extension__
typedef long long int		int_fast64_t;
#endif/* Unsigned.  */
typedef unsigned char		uint_fast8_t;
#if __WORDSIZE == 64
typedef unsigned long int	uint_fast16_t;
typedef unsigned long int	uint_fast32_t;
typedef unsigned long int	uint_fast64_t;
#else
typedef unsigned int		uint_fast16_t;
typedef unsigned int		uint_fast32_t;
__extension__
typedef unsigned long long int	uint_fast64_t;
#endif/* Types for `void *' pointers.  */
#if __WORDSIZE == 64
# ifndef __intptr_t_defined
typedef long int		intptr_t;
#  define __intptr_t_defined
# endif
typedef unsigned long int	uintptr_t;
#else
# ifndef __intptr_t_defined
typedef int			intptr_t;
#  define __intptr_t_defined
# endif
typedef unsigned int		uintptr_t;
#endif/* Largest integral types.  */
#if __WORDSIZE == 64
typedef long int		intmax_t;
typedef unsigned long int	uintmax_t;
#else
__extension__
typedef long long int		intmax_t;
__extension__
typedef unsigned long long int	uintmax_t;
#endif

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