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Annotation of 42BSD/ucb/pascal/pxp/string.c, revision 1.1

1.1     ! root        1: static char *sccsid = "@(#)string.c    1.2 (Berkeley) 3/7/81";
        !             2: /* Copyright (c) 1979 Regents of the University of California */
        !             3: #
        !             4: /*
        !             5:  * pxp - Pascal execution profiler
        !             6:  *
        !             7:  * Bill Joy UCB
        !             8:  * Version 1.2 January 1979
        !             9:  */
        !            10: 
        !            11: #include "0.h"
        !            12: 
        !            13: /*
        !            14:  * STRING SPACE DECLARATIONS
        !            15:  *
        !            16:  * Strng is the base of the current
        !            17:  * string space and strngp the
        !            18:  * base of the free area therein.
        !            19:  * No array of descriptors is needed
        !            20:  * as string space is never freed.
        !            21:  */
        !            22: STATIC char strings[STRINC];
        !            23: STATIC char *strng = strings;
        !            24: STATIC char *strngp = strings;
        !            25: 
        !            26: /*
        !            27: initstring()
        !            28: {
        !            29: 
        !            30: }
        !            31:  */
        !            32: /*
        !            33:  * Copy a string into the string area.
        !            34:  */
        !            35: savestr(cp)
        !            36:        register char *cp;
        !            37: {
        !            38:        register int i;
        !            39: 
        !            40:        i = strlen(cp) + 1;
        !            41:        if (strngp + i >= strng + STRINC) {
        !            42:                strngp = alloc(STRINC);
        !            43:                if (strngp == -1) {
        !            44:                        yerror("Ran out of memory (string)");
        !            45:                        pexit(DIED);
        !            46:                }
        !            47:                strng = strngp;
        !            48:        }
        !            49:        strcpy(strngp, cp);
        !            50:        cp = strngp;
        !            51:        strngp = cp + i;
        !            52:        return (cp);
        !            53: }
        !            54: 
        !            55: esavestr(cp)
        !            56:        char *cp;
        !            57: {
        !            58: 
        !            59:        strngp = (int)(strngp + (sizeof (int) - 1)) &~ (sizeof (int) - 1);
        !            60:        return (savestr(cp));
        !            61: }

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