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Annotation of 3BSD/cmd/pi/ato.c, revision 1.1

1.1     ! root        1: /* Copyright (c) 1979 Regents of the University of California */
        !             2: #
        !             3: /*
        !             4:  * pi - Pascal interpreter code translator
        !             5:  *
        !             6:  * Charles Haley, Bill Joy UCB
        !             7:  * Version 1.2 November 1978
        !             8:  */
        !             9: 
        !            10: #include "whoami"
        !            11: #include "0.h"
        !            12: 
        !            13: long
        !            14: a8tol(cp)
        !            15:        char *cp;
        !            16: {
        !            17:        int err;
        !            18:        long l;
        !            19:        register CHAR c;
        !            20: 
        !            21:        l = 0;
        !            22:        err = 0;
        !            23:        while ((c = *cp++) != '\0') {
        !            24:                if (c == '8' || c == '9')
        !            25:                        if (err == 0) {
        !            26:                                error("8 or 9 in octal number");
        !            27:                                err++;
        !            28:                        }
        !            29:                c -= '0';
        !            30:                if ((l & 0160000000000L) != 0)
        !            31:                        if (err == 0) {
        !            32:                                error("Number too large for this implementation");
        !            33:                                err++;
        !            34:                        }
        !            35:                l = (l << 3) | c;
        !            36:        }
        !            37:        return (l);
        !            38: }
        !            39: 
        !            40: /*
        !            41:  * Note that the version of atof
        !            42:  * used in this compiler does not
        !            43:  * (sadly) complain when floating
        !            44:  * point numbers are too large.
        !            45:  */

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