cc.h

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#ifndef __CC_H__
#define __CC_H__
 
#include <errno.h>
#include <stddef.h>
 
typedef unsigned char           u8_t;
typedef signed char             s8_t;
typedef unsigned short int      u16_t;
typedef signed short int        s16_t;
typedef unsigned int            u32_t;
typedef signed int              s32_t;
 
typedef u32_t mem_ptr_t;
 
#define PACK_STRUCT_FIELD(x) x __attribute((packed))
#define PACK_STRUCT_STRUCT __attribute((packed))
/* Used for struct fields of u8_t,
 * where some compilers warn that packing is not necessary */
#define PACK_STRUCT_FLD_8(x) x
/* Used for struct fields of that are packed structs themself,
 * where some compilers warn that packing is not necessary */
#define PACK_STRUCT_FLD_S(x) x
#define PACK_STRUCT_BEGIN
#define PACK_STRUCT_END
 
#ifdef DEBUG
#define LWIP_PLATFORM_DIAG(args) printf args
#define LWIP_PLATFORM_ASSERT(args) printf args
#else
#define LWIP_PLATFORM_DIAG(args)
#define LWIP_PLATFORM_ASSERT(args)
#endif
 
/* Define (sn)printf formatters for these lwIP types */
#define U8_F "hu"
#define S8_F "hd"
#define X8_F "hx"
#define U16_F "hu"
#define S16_F "hd"
#define X16_F "hx"
#define U32_F "u"
#define S32_F "d"
#define X32_F "x"
#define SZT_F "uz"
 
#define LWIP_NO_STDINT_H        1       //stdint.h does not exist.
#define LWIP_NO_INTTYPES_H      1       //inttypes.h does not exist.
 
#define lwip_htons(x) PP_HTONS(x)
#define lwip_htonl(x) PP_HTONL(x)
 
#endif /* __CC_H__ */