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Annotation of 43BSDReno/pgrm/pascal/src/ato.c, revision 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[] = "@(#)ato.c      5.1 (Berkeley) 6/4/85";
        !             9: #endif not lint
        !            10: 
        !            11: #include "whoami.h"
        !            12: #include "0.h"
        !            13: 
        !            14: long
        !            15: a8tol(cp)
        !            16:        char *cp;
        !            17: {
        !            18:        int err;
        !            19:        long l;
        !            20:        register CHAR c;
        !            21: 
        !            22:        l = 0;
        !            23:        err = 0;
        !            24:        while ((c = *cp++) != '\0') {
        !            25:                if (c == '8' || c == '9')
        !            26:                        if (err == 0) {
        !            27:                                error("8 or 9 in octal number");
        !            28:                                err++;
        !            29:                        }
        !            30:                c -= '0';
        !            31:                if ((l & 016000000000L) != 0)
        !            32:                        if (err == 0) {
        !            33:                                error("Number too large for this implementation");
        !            34:                                err++;
        !            35:                        }
        !            36:                l = (l << 3) | c;
        !            37:        }
        !            38:        return (l);
        !            39: }
        !            40: 
        !            41: /*
        !            42:  * Note that the version of atof
        !            43:  * used in this compiler does not
        !            44:  * (sadly) complain when floating
        !            45:  * point numbers are too large.
        !            46:  */

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