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Annotation of xinu/h/mark.h, revision 1.1

1.1     ! root        1: /* mark.h - marked, unmarked */
        !             2: 
        !             3: #ifndef        MAXMARK
        !             4: #define        MAXMARK 20              /* maximum number of marked locations   */
        !             5: #endif
        !             6: #ifdef MEMMARK
        !             7: extern int     *(marks[]);
        !             8: extern int     nmarks;
        !             9: extern int     mkmutex;
        !            10: typedef        int     MARKER[1];      /* by declaring it to be an array, the  */
        !            11:                                /* name provides an address so forgotten*/
        !            12:                                /* &'s don't become a problem           */
        !            13: 
        !            14: #define        unmarked(L)             (L[0]<0 || L[0]>=nmarks || marks[L[0]]!=L)
        !            15: #define        marked(L)               !unmarked(L)
        !            16: #endif

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