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Annotation of 43BSDReno/pgrm/pascal/pdx/runtime/isactive.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1980 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  */
                      6: 
                      7: #ifndef lint
                      8: static char sccsid[] = "@(#)isactive.c 5.1 (Berkeley) 6/6/85";
                      9: #endif not lint
                     10: /*
                     11:  * Decide a the given function is currently active.
                     12:  */
                     13: 
                     14: #include "defs.h"
                     15: #include "runtime.h"
                     16: #include "frame.rep"
                     17: #include "sym.h"
                     18: #include "machine.h"
                     19: #include "process.h"
                     20: 
                     21: BOOLEAN isactive(f)
                     22: SYM *f;
                     23: {
                     24:        if (isfinished(process)) {
                     25:                return(FALSE);
                     26:        } else {
                     27:                if (f == program) {
                     28:                        return(TRUE);
                     29:                }
                     30:                return(findframe(f) != NIL);
                     31:        }
                     32: }

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