plan9.h - 9base - revived minimalist port of Plan 9 userland to Unix
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       ---
       plan9.h (721B)
       ---
            1 #include <inttypes.h>
            2 
            3 /*
            4  * compiler directive on Plan 9
            5  */
            6 #ifndef USED
            7 #define USED(x) if(x);else
            8 #endif
            9 
           10 /*
           11  * easiest way to make sure these are defined
           12  */
           13 #define uchar        _fmtuchar
           14 #define ushort        _fmtushort
           15 #define uint        _fmtuint
           16 #define ulong        _fmtulong
           17 #define vlong        _fmtvlong
           18 #define uvlong        _fmtuvlong
           19 #define uintptr        _fmtuintptr
           20 
           21 typedef unsigned char                uchar;
           22 typedef unsigned short                ushort;
           23 typedef unsigned int                uint;
           24 typedef unsigned long                ulong;
           25 typedef unsigned long long        uvlong;
           26 typedef long long                vlong;
           27 typedef uintptr_t uintptr;
           28 
           29 /*
           30  * nil cannot be ((void*)0) on ANSI C,
           31  * because it is used for function pointers
           32  */
           33 #undef        nil
           34 #define        nil        0
           35 
           36 #undef        nelem
           37 #define        nelem(x)        (sizeof (x)/sizeof (x)[0])
           38