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

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

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