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Annotation of researchv9/jerq/sgs/libsdp/pop_id.c, revision 1.1

1.1     ! root        1: static char ID[] = "@(#) pop_id.c: 1.1 3/16/82";
        !             2: #include <stdio.h>
        !             3: #include "sdp.h"
        !             4: #include "define3.h"
        !             5: 
        !             6: #ifdef SHORT
        !             7: #define PO01   "PO01 "
        !             8: #else
        !             9: #define PO01   "%s","PO01 -- error return from framesearch\n"
        !            10: #endif
        !            11: 
        !            12: extern FATAL() ;
        !            13: extern struct LIBFILE *Glib_file ;
        !            14: extern fault() ;
        !            15: extern framesearch() ;
        !            16: extern stk1search() ;
        !            17: 
        !            18: ITEMID                                 /* itemid, IDNOTFOUND, IDERROR */
        !            19: pop_id(sp,howmuch)
        !            20: register struct SPACE  *sp ;
        !            21: unsigned               howmuch ;
        !            22: {
        !            23:        register int            frame ;
        !            24:        int                     offset ;
        !            25:        register int            stack ;
        !            26:        struct MANAGER          *manager ;
        !            27:        struct STAXINFO         *pntr ;
        !            28:        register ITEMID         id ;
        !            29: 
        !            30: 
        !            31:        if( (stack = stk1search(sp,howmuch)) == NOTFOUND)
        !            32:                return(IDNOTFOUND) ;
        !            33: 
        !            34:        if( (id = sp->staxinfo[stack].top) == IDNULL )
        !            35:                return(IDNOTFOUND) ;
        !            36: 
        !            37:        manager = (sp->environ)->manp ;
        !            38: 
        !            39:        if( (frame=framesearch(sp,id)) == NOTFOUND )
        !            40:                frame = fault(sp,id) ;
        !            41: 
        !            42:        if(frame == ERROR)
        !            43:                ERR_RET(PO01,IDERROR)
        !            44: 
        !            45:        offset = id % (sp->environ)->frame_size ;
        !            46:        pntr = (struct STAXINFO *)(manager[frame].frame_pntr + offset) ;
        !            47:        sp->staxinfo[stack].top = pntr->top ;
        !            48:        sp->staxinfo[stack].depth-- ;
        !            49:        pntr->top = IDNULL ;
        !            50:        return(id) ;
        !            51: }

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