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Annotation of coherent/d/usr/lib/libmp/mprec.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  *     Manifest constants.
                      3:  */
                      4: #ifndef NULL
                      5: #define        NULL            ((char *)0)
                      6: #endif
                      7: #define TRUE           1
                      8: #define FALSE          0
                      9: #define        BASE            128
                     10: #define        L2BASE          7
                     11: #define        NEFL            (BASE - 1)      /* leading byte of negative numbers */
                     12: #if _I386
                     13: #define        NORSIZ          6               /* maximum size for int value */
                     14: #else
                     15: #define        NORSIZ          4               /* maximum size for int value */
                     16: #endif
                     17: /*
                     18:  *     Multi-precision integer type.
                     19:  */
                     20: 
                     21: typedef struct {
                     22:        unsigned len;
                     23:        char *val;
                     24: } mint;
                     25: 
                     26: 
                     27: /*
                     28:  *     Minit initializes a mint so that it may be used by the other
                     29:  *     multi-precision routines.  This simply consists of setting the
                     30:  *     val field to NULL so that mpfree will know that there is nothing
                     31:  *     to free.  Note that the mint so initialized has no value and
                     32:  *     should not be used as an operand, but may be used as the result
                     33:  *     of any of the multi-precision routines.
                     34:  */
                     35: 
                     36: #define        minit(mp)       (mp)->val = NULL
                     37: 
                     38: 
                     39: /*
                     40:  *     Mvfree frees the value associated to a pointer to a mint.
                     41:  *     Note that it does not re-initialize the mint.
                     42:  */
                     43: 
                     44: #define        mvfree(mp)      mpfree((mp)->val)
                     45: 
                     46: 
                     47: /*
                     48:  *     Functions returning non-ints.
                     49:  */
                     50: 
                     51: void   gcd(),          /* greatest common divisor of 2 mints */
                     52:        madd(),         /* add 2 mints */
                     53:        mcopy(),        /* copy mint */
                     54:        mdiv(),         /* divide 2 mints */
                     55:        min(),          /* read in mint from stdin */
                     56:        mintfr(),       /* free all space used by a mint */
                     57:        mitom(),        /* set a mint to the value of an int */
                     58:        mneg(),         /* negate a mint */
                     59:        mout(),         /* write out mint onto stdout */
                     60:        mperr(),        /* print error on stdout and exit */
                     61:        mpfree(),       /* free space allocated by mpalc */
                     62:        msma(),         /* shift-multiply-add inplace */
                     63:        msqrt(),        /* square root of mint */
                     64:        msub(),         /* subtract 2 mints */
                     65:        mult(),         /* multiply 2 mints */
                     66:        norm(),         /* normalize a mint */
                     67:        pow(),          /* raise mint to a mint power mod a mint */
                     68:        rpow(),         /* raise mint to a mint power */
                     69:        sdiv(),         /* divide a mint by a char */
                     70:        smult(),        /* multiply a mint by a char */
                     71:        spow(),         /* raise mint to an unsigned power */
                     72:        xgcd();         /* extended greatest common divisor */
                     73: char   *mpalc(),       /* allocate space */
                     74:        *mtos();        /* convert mint to string */
                     75: mint   *itom();        /* allocate space for mint initialized to int */
                     76: 
                     77: 
                     78:        /* external variables */
                     79: 
                     80: extern mint    *mzero,         /* a mint which has a value of zero */
                     81:                *mone,          /* a mint which has a value of one */
                     82:                *mminint,       /* min value that fits in an int */
                     83:                *mmaxint;       /* max value that fits in an int */
                     84: extern int     ibase,          /* input base (2 <= ibase <= 16 assumed) */
                     85:                obase;          /* output base (2 <= obase <= 16 assumed) */

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