#include "blaswrap.h"
/* slamch.f -- translated by f2c (version 20061008).
   You must link the resulting object file with libf2c:
	on Microsoft Windows system, link with libf2c.lib;
	on Linux or Unix systems, link with .../path/to/libf2c.a -lm
	or, if you install libf2c.a in a standard place, with -lf2c -lm
	-- in that order, at the end of the command line, as in
		cc *.o -lf2c -lm
	Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,

		http://www.netlib.org/f2c/libf2c.zip
*/

#include "f2c.h"
#include <stdio.h>

/* Table of constant values */

static integer c__1 = 1;
static real c_b32 = 0.f;

doublereal slamch_(char *cmach)
{
    /* Initialized data */

    static logical first = TRUE_;

    /* System generated locals */
    integer i__1;
    real ret_val;

    /* Builtin functions */
    double pow_ri(real *, integer *);

    /* Local variables */
    static real t;
    static integer it;
    static real rnd, eps, base;
    static integer beta;
    static real emin, prec, emax;
    static integer imin, imax;
    static logical lrnd;
    static real rmin, rmax, rmach;
    extern logical lsame_(char *, char *);
    static real small, sfmin;
    extern /* Subroutine */ int slamc2_(integer *, integer *, logical *, real 
	    *, integer *, real *, integer *, real *);


/*  -- LAPACK auxiliary routine (version 3.1) --   
       Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..   
       November 2006   


    Purpose   
    =======   

    SLAMCH determines single precision machine parameters.   

    Arguments   
    =========   

    CMACH   (input) CHARACTER*1   
            Specifies the value to be returned by SLAMCH:   
            = 'E' or 'e',   SLAMCH := eps   
            = 'S' or 's ,   SLAMCH := sfmin   
            = 'B' or 'b',   SLAMCH := base   
            = 'P' or 'p',   SLAMCH := eps*base   
            = 'N' or 'n',   SLAMCH := t   
            = 'R' or 'r',   SLAMCH := rnd   
            = 'M' or 'm',   SLAMCH := emin   
            = 'U' or 'u',   SLAMCH := rmin   
            = 'L' or 'l',   SLAMCH := emax   
            = 'O' or 'o',   SLAMCH := rmax   

            where   

            eps   = relative machine precision   
            sfmin = safe minimum, such that 1/sfmin does not overflow   
            base  = base of the machine   
            prec  = eps*base   
            t     = number of (base) digits in the mantissa   
            rnd   = 1.0 when rounding occurs in addition, 0.0 otherwise   
            emin  = minimum exponent before (gradual) underflow   
            rmin  = underflow threshold - base**(emin-1)   
            emax  = largest exponent before overflow   
            rmax  = overflow threshold  - (base**emax)*(1-eps)   

   ===================================================================== */


    if (first) {
	slamc2_(&beta, &it, &lrnd, &eps, &imin, &rmin, &imax, &rmax);
	base = (real) beta;
	t = (real) it;
	if (lrnd) {
	    rnd = 1.f;
	    i__1 = 1 - it;
	    eps = pow_ri(&base, &i__1) / 2;
	} else {
	    rnd = 0.f;
	    i__1 = 1 - it;
	    eps = pow_ri(&base, &i__1);
	}
	prec = eps * base;
	emin = (real) imin;
	emax = (real) imax;
	sfmin = rmin;
	small = 1.f / rmax;
	if (small >= sfmin) {

/*           Use SMALL plus a bit, to avoid the possibility of rounding   
             causing overflow when computing  1/sfmin. */

	    sfmin = small * (eps + 1.f);
	}
    }

    if (lsame_(cmach, "E")) {
	rmach = eps;
    } else if (lsame_(cmach, "S")) {
	rmach = sfmin;
    } else if (lsame_(cmach, "B")) {
	rmach = base;
    } else if (lsame_(cmach, "P")) {
	rmach = prec;
    } else if (lsame_(cmach, "N")) {
	rmach = t;
    } else if (lsame_(cmach, "R")) {
	rmach = rnd;
    } else if (lsame_(cmach, "M")) {
	rmach = emin;
    } else if (lsame_(cmach, "U")) {
	rmach = rmin;
    } else if (lsame_(cmach, "L")) {
	rmach = emax;
    } else if (lsame_(cmach, "O")) {
	rmach = rmax;
    }

    ret_val = rmach;
    first = FALSE_;
    return ret_val;

/*     End of SLAMCH */

} /* slamch_   


   ***********************************************************************   

   Subroutine */ int slamc1_(integer *beta, integer *t, logical *rnd, logical 
	*ieee1)
{
    /* Initialized data */

    static logical first = TRUE_;

    /* System generated locals */
    real r__1, r__2;

    /* Local variables */
    static real a, b, c__, f, t1, t2;
    static integer lt;
    static real one, qtr;
    static logical lrnd;
    static integer lbeta;
    static real savec;
    static logical lieee1;
    extern doublereal slamc3_(real *, real *);


/*  -- LAPACK auxiliary routine (version 3.1) --   
       Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..   
       November 2006   


    Purpose   
    =======   

    SLAMC1 determines the machine parameters given by BETA, T, RND, and   
    IEEE1.   

    Arguments   
    =========   

    BETA    (output) INTEGER   
            The base of the machine.   

    T       (output) INTEGER   
            The number of ( BETA ) digits in the mantissa.   

    RND     (output) LOGICAL   
            Specifies whether proper rounding  ( RND = .TRUE. )  or   
            chopping  ( RND = .FALSE. )  occurs in addition. This may not   
            be a reliable guide to the way in which the machine performs   
            its arithmetic.   

    IEEE1   (output) LOGICAL   
            Specifies whether rounding appears to be done in the IEEE   
            'round to nearest' style.   

    Further Details   
    ===============   

    The routine is based on the routine  ENVRON  by Malcolm and   
    incorporates suggestions by Gentleman and Marovich. See   

       Malcolm M. A. (1972) Algorithms to reveal properties of   
          floating-point arithmetic. Comms. of the ACM, 15, 949-951.   

       Gentleman W. M. and Marovich S. B. (1974) More on algorithms   
          that reveal properties of floating point arithmetic units.   
          Comms. of the ACM, 17, 276-277.   

   ===================================================================== */


    if (first) {
	one = 1.f;

/*        LBETA,  LIEEE1,  LT and  LRND  are the  local values  of  BETA,   
          IEEE1, T and RND.   

          Throughout this routine  we use the function  SLAMC3  to ensure   
          that relevant values are  stored and not held in registers,  or   
          are not affected by optimizers.   

          Compute  a = 2.0**m  with the  smallest positive integer m such   
          that   

             fl( a + 1.0 ) = a. */

	a = 1.f;
	c__ = 1.f;

/* +       WHILE( C.EQ.ONE )LOOP */
L10:
	if (c__ == one) {
	    a *= 2;
	    c__ = slamc3_(&a, &one);
	    r__1 = -a;
	    c__ = slamc3_(&c__, &r__1);
	    goto L10;
	}
/* +       END WHILE   

          Now compute  b = 2.0**m  with the smallest positive integer m   
          such that   

             fl( a + b ) .gt. a. */

	b = 1.f;
	c__ = slamc3_(&a, &b);

/* +       WHILE( C.EQ.A )LOOP */
L20:
	if (c__ == a) {
	    b *= 2;
	    c__ = slamc3_(&a, &b);
	    goto L20;
	}
/* +       END WHILE   

          Now compute the base.  a and c  are neighbouring floating point   
          numbers  in the  interval  ( beta**t, beta**( t + 1 ) )  and so   
          their difference is beta. Adding 0.25 to c is to ensure that it   
          is truncated to beta and not ( beta - 1 ). */

	qtr = one / 4;
	savec = c__;
	r__1 = -a;
	c__ = slamc3_(&c__, &r__1);
	lbeta = c__ + qtr;

/*        Now determine whether rounding or chopping occurs,  by adding a   
          bit  less  than  beta/2  and a  bit  more  than  beta/2  to  a. */

	b = (real) lbeta;
	r__1 = b / 2;
	r__2 = -b / 100;
	f = slamc3_(&r__1, &r__2);
	c__ = slamc3_(&f, &a);
	if (c__ == a) {
	    lrnd = TRUE_;
	} else {
	    lrnd = FALSE_;
	}
	r__1 = b / 2;
	r__2 = b / 100;
	f = slamc3_(&r__1, &r__2);
	c__ = slamc3_(&f, &a);
	if (lrnd && c__ == a) {
	    lrnd = FALSE_;
	}

/*        Try and decide whether rounding is done in the  IEEE  'round to   
          nearest' style. B/2 is half a unit in the last place of the two   
          numbers A and SAVEC. Furthermore, A is even, i.e. has last  bit   
          zero, and SAVEC is odd. Thus adding B/2 to A should not  change   
          A, but adding B/2 to SAVEC should change SAVEC. */

	r__1 = b / 2;
	t1 = slamc3_(&r__1, &a);
	r__1 = b / 2;
	t2 = slamc3_(&r__1, &savec);
	lieee1 = t1 == a && t2 > savec && lrnd;

/*        Now find  the  mantissa, t.  It should  be the  integer part of   
          log to the base beta of a,  however it is safer to determine  t   
          by powering.  So we find t as the smallest positive integer for   
          which   

             fl( beta**t + 1.0 ) = 1.0. */

	lt = 0;
	a = 1.f;
	c__ = 1.f;

/* +       WHILE( C.EQ.ONE )LOOP */
L30:
	if (c__ == one) {
	    ++lt;
	    a *= lbeta;
	    c__ = slamc3_(&a, &one);
	    r__1 = -a;
	    c__ = slamc3_(&c__, &r__1);
	    goto L30;
	}
/* +       END WHILE */

    }

    *beta = lbeta;
    *t = lt;
    *rnd = lrnd;
    *ieee1 = lieee1;
    first = FALSE_;
    return 0;

/*     End of SLAMC1 */

} /* slamc1_   


   ***********************************************************************   

   Subroutine */ int slamc2_(integer *beta, integer *t, logical *rnd, real *
	eps, integer *emin, real *rmin, integer *emax, real *rmax)
{
    /* Initialized data */

    static logical first = TRUE_;
    static logical iwarn = FALSE_;

    /* System generated locals */
    integer i__1;
    real r__1, r__2, r__3, r__4, r__5;

    /* Builtin functions */
    double pow_ri(real *, integer *);
    integer s_wsfe(cilist *), do_fio(integer *, char *, ftnlen), e_wsfe(void);

    /* Local variables */
    static real a, b, c__;
    static integer i__, lt;
    static real one, two;
    static logical ieee;
    static real half;
    static logical lrnd;
    static real leps, zero;
    static integer lbeta;
    static real rbase;
    static integer lemin, lemax, gnmin;
    static real small;
    static integer gpmin;
    static real third, lrmin, lrmax, sixth;
    static logical lieee1;
    extern /* Subroutine */ int slamc1_(integer *, integer *, logical *, 
	    logical *);
    extern doublereal slamc3_(real *, real *);
    extern /* Subroutine */ int slamc4_(integer *, real *, integer *), 
	    slamc5_(integer *, integer *, integer *, logical *, integer *, 
	    real *);
    static integer ngnmin, ngpmin;


/*  -- LAPACK auxiliary routine (version 3.1) --   
       Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..   
       November 2006   


    Purpose   
    =======   

    SLAMC2 determines the machine parameters specified in its argument   
    list.   

    Arguments   
    =========   

    BETA    (output) INTEGER   
            The base of the machine.   

    T       (output) INTEGER   
            The number of ( BETA ) digits in the mantissa.   

    RND     (output) LOGICAL   
            Specifies whether proper rounding  ( RND = .TRUE. )  or   
            chopping  ( RND = .FALSE. )  occurs in addition. This may not   
            be a reliable guide to the way in which the machine performs   
            its arithmetic.   

    EPS     (output) REAL   
            The smallest positive number such that   

               fl( 1.0 - EPS ) .LT. 1.0,   

            where fl denotes the computed value.   

    EMIN    (output) INTEGER   
            The minimum exponent before (gradual) underflow occurs.   

    RMIN    (output) REAL   
            The smallest normalized number for the machine, given by   
            BASE**( EMIN - 1 ), where  BASE  is the floating point value   
            of BETA.   

    EMAX    (output) INTEGER   
            The maximum exponent before overflow occurs.   

    RMAX    (output) REAL   
            The largest positive number for the machine, given by   
            BASE**EMAX * ( 1 - EPS ), where  BASE  is the floating point   
            value of BETA.   

    Further Details   
    ===============   

    The computation of  EPS  is based on a routine PARANOIA by   
    W. Kahan of the University of California at Berkeley.   

   ===================================================================== */


    if (first) {
	zero = 0.f;
	one = 1.f;
	two = 2.f;

/*        LBETA, LT, LRND, LEPS, LEMIN and LRMIN  are the local values of   
          BETA, T, RND, EPS, EMIN and RMIN.   

          Throughout this routine  we use the function  SLAMC3  to ensure   
          that relevant values are stored  and not held in registers,  or   
          are not affected by optimizers.   

          SLAMC1 returns the parameters  LBETA, LT, LRND and LIEEE1. */

	slamc1_(&lbeta, &lt, &lrnd, &lieee1);

/*        Start to find EPS. */

	b = (real) lbeta;
	i__1 = -lt;
	a = pow_ri(&b, &i__1);
	leps = a;

/*        Try some tricks to see whether or not this is the correct  EPS. */

	b = two / 3;
	half = one / 2;
	r__1 = -half;
	sixth = slamc3_(&b, &r__1);
	third = slamc3_(&sixth, &sixth);
	r__1 = -half;
	b = slamc3_(&third, &r__1);
	b = slamc3_(&b, &sixth);
	b = dabs(b);
	if (b < leps) {
	    b = leps;
	}

	leps = 1.f;

/* +       WHILE( ( LEPS.GT.B ).AND.( B.GT.ZERO ) )LOOP */
L10:
	if (leps > b && b > zero) {
	    leps = b;
	    r__1 = half * leps;
/* Computing 5th power */
	    r__3 = two, r__4 = r__3, r__3 *= r__3;
/* Computing 2nd power */
	    r__5 = leps;
	    r__2 = r__4 * (r__3 * r__3) * (r__5 * r__5);
	    c__ = slamc3_(&r__1, &r__2);
	    r__1 = -c__;
	    c__ = slamc3_(&half, &r__1);
	    b = slamc3_(&half, &c__);
	    r__1 = -b;
	    c__ = slamc3_(&half, &r__1);
	    b = slamc3_(&half, &c__);
	    goto L10;
	}
/* +       END WHILE */

	if (a < leps) {
	    leps = a;
	}

/*        Computation of EPS complete.   

          Now find  EMIN.  Let A = + or - 1, and + or - (1 + BASE**(-3)).   
          Keep dividing  A by BETA until (gradual) underflow occurs. This   
          is detected when we cannot recover the previous A. */

	rbase = one / lbeta;
	small = one;
	for (i__ = 1; i__ <= 3; ++i__) {
	    r__1 = small * rbase;
	    small = slamc3_(&r__1, &zero);
/* L20: */
	}
	a = slamc3_(&one, &small);
	slamc4_(&ngpmin, &one, &lbeta);
	r__1 = -one;
	slamc4_(&ngnmin, &r__1, &lbeta);
	slamc4_(&gpmin, &a, &lbeta);
	r__1 = -a;
	slamc4_(&gnmin, &r__1, &lbeta);
	ieee = FALSE_;

	if (ngpmin == ngnmin && gpmin == gnmin) {
	    if (ngpmin == gpmin) {
		lemin = ngpmin;
/*            ( Non twos-complement machines, no gradual underflow;   
                e.g.,  VAX ) */
	    } else if (gpmin - ngpmin == 3) {
		lemin = ngpmin - 1 + lt;
		ieee = TRUE_;
/*            ( Non twos-complement machines, with gradual underflow;   
                e.g., IEEE standard followers ) */
	    } else {
		lemin = min(ngpmin,gpmin);
/*            ( A guess; no known machine ) */
		iwarn = TRUE_;
	    }

	} else if (ngpmin == gpmin && ngnmin == gnmin) {
	    if ((i__1 = ngpmin - ngnmin, abs(i__1)) == 1) {
		lemin = max(ngpmin,ngnmin);
/*            ( Twos-complement machines, no gradual underflow;   
                e.g., CYBER 205 ) */
	    } else {
		lemin = min(ngpmin,ngnmin);
/*            ( A guess; no known machine ) */
		iwarn = TRUE_;
	    }

	} else if ((i__1 = ngpmin - ngnmin, abs(i__1)) == 1 && gpmin == gnmin)
		 {
	    if (gpmin - min(ngpmin,ngnmin) == 3) {
		lemin = max(ngpmin,ngnmin) - 1 + lt;
/*            ( Twos-complement machines with gradual underflow;   
                no known machine ) */
	    } else {
		lemin = min(ngpmin,ngnmin);
/*            ( A guess; no known machine ) */
		iwarn = TRUE_;
	    }

	} else {
/* Computing MIN */
	    i__1 = min(ngpmin,ngnmin), i__1 = min(i__1,gpmin);
	    lemin = min(i__1,gnmin);
/*         ( A guess; no known machine ) */
	    iwarn = TRUE_;
	}
	first = FALSE_;
/* **   
   Comment out this if block if EMIN is ok */
	if (iwarn) {
	    first = TRUE_;
            printf("\n\n WARNING. The value EMIN may be incorrect:- ");
            printf("EMIN = %8i\n",lemin);
            printf("If, after inspection, the value EMIN looks acceptable");
            printf("please comment out \n the IF block as marked within the");
            printf("code of routine SLAMC2, \n otherwise supply EMIN");
            printf("explicitly.\n");
	}
/* **   

          Assume IEEE arithmetic if we found denormalised  numbers above,   
          or if arithmetic seems to round in the  IEEE style,  determined   
          in routine SLAMC1. A true IEEE machine should have both  things   
          true; however, faulty machines may have one or the other. */

	ieee = ieee || lieee1;

/*        Compute  RMIN by successive division by  BETA. We could compute   
          RMIN as BASE**( EMIN - 1 ),  but some machines underflow during   
          this computation. */

	lrmin = 1.f;
	i__1 = 1 - lemin;
	for (i__ = 1; i__ <= i__1; ++i__) {
	    r__1 = lrmin * rbase;
	    lrmin = slamc3_(&r__1, &zero);
/* L30: */
	}

/*        Finally, call SLAMC5 to compute EMAX and RMAX. */

	slamc5_(&lbeta, &lt, &lemin, &ieee, &lemax, &lrmax);
    }

    *beta = lbeta;
    *t = lt;
    *rnd = lrnd;
    *eps = leps;
    *emin = lemin;
    *rmin = lrmin;
    *emax = lemax;
    *rmax = lrmax;

    return 0;


/*     End of SLAMC2 */

} /* slamc2_   


   *********************************************************************** */

doublereal slamc3_(real *a, real *b)
{
    /* System generated locals */
    real ret_val;


/*  -- LAPACK auxiliary routine (version 3.1) --   
       Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..   
       November 2006   


    Purpose   
    =======   

    SLAMC3  is intended to force  A  and  B  to be stored prior to doing   
    the addition of  A  and  B ,  for use in situations where optimizers   
    might hold one of these in a register.   

    Arguments   
    =========   

    A       (input) REAL   
    B       (input) REAL   
            The values A and B.   

   ===================================================================== */


    ret_val = *a + *b;

    return ret_val;

/*     End of SLAMC3 */

} /* slamc3_   


   ***********************************************************************   

   Subroutine */ int slamc4_(integer *emin, real *start, integer *base)
{
    /* System generated locals */
    integer i__1;
    real r__1;

    /* Local variables */
    static real a;
    static integer i__;
    static real b1, b2, c1, c2, d1, d2, one, zero, rbase;
    extern doublereal slamc3_(real *, real *);


/*  -- LAPACK auxiliary routine (version 3.1) --   
       Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..   
       November 2006   


    Purpose   
    =======   

    SLAMC4 is a service routine for SLAMC2.   

    Arguments   
    =========   

    EMIN    (output) INTEGER   
            The minimum exponent before (gradual) underflow, computed by   
            setting A = START and dividing by BASE until the previous A   
            can not be recovered.   

    START   (input) REAL   
            The starting point for determining EMIN.   

    BASE    (input) INTEGER   
            The base of the machine.   

   ===================================================================== */


    a = *start;
    one = 1.f;
    rbase = one / *base;
    zero = 0.f;
    *emin = 1;
    r__1 = a * rbase;
    b1 = slamc3_(&r__1, &zero);
    c1 = a;
    c2 = a;
    d1 = a;
    d2 = a;
/* +    WHILE( ( C1.EQ.A ).AND.( C2.EQ.A ).AND.   
      $       ( D1.EQ.A ).AND.( D2.EQ.A )      )LOOP */
L10:
    if (c1 == a && c2 == a && d1 == a && d2 == a) {
	--(*emin);
	a = b1;
	r__1 = a / *base;
	b1 = slamc3_(&r__1, &zero);
	r__1 = b1 * *base;
	c1 = slamc3_(&r__1, &zero);
	d1 = zero;
	i__1 = *base;
	for (i__ = 1; i__ <= i__1; ++i__) {
	    d1 += b1;
/* L20: */
	}
	r__1 = a * rbase;
	b2 = slamc3_(&r__1, &zero);
	r__1 = b2 / rbase;
	c2 = slamc3_(&r__1, &zero);
	d2 = zero;
	i__1 = *base;
	for (i__ = 1; i__ <= i__1; ++i__) {
	    d2 += b2;
/* L30: */
	}
	goto L10;
    }
/* +    END WHILE */

    return 0;

/*     End of SLAMC4 */

} /* slamc4_   


   ***********************************************************************   

   Subroutine */ int slamc5_(integer *beta, integer *p, integer *emin, 
	logical *ieee, integer *emax, real *rmax)
{
    /* System generated locals */
    integer i__1;
    real r__1;

    /* Local variables */
    static integer i__;
    static real y, z__;
    static integer try__, lexp;
    static real oldy;
    static integer uexp, nbits;
    extern doublereal slamc3_(real *, real *);
    static real recbas;
    static integer exbits, expsum;


/*  -- LAPACK auxiliary routine (version 3.1) --   
       Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..   
       November 2006   


    Purpose   
    =======   

    SLAMC5 attempts to compute RMAX, the largest machine floating-point   
    number, without overflow.  It assumes that EMAX + abs(EMIN) sum   
    approximately to a power of 2.  It will fail on machines where this   
    assumption does not hold, for example, the Cyber 205 (EMIN = -28625,   
    EMAX = 28718).  It will also fail if the value supplied for EMIN is   
    too large (i.e. too close to zero), probably with overflow.   

    Arguments   
    =========   

    BETA    (input) INTEGER   
            The base of floating-point arithmetic.   

    P       (input) INTEGER   
            The number of base BETA digits in the mantissa of a   
            floating-point value.   

    EMIN    (input) INTEGER   
            The minimum exponent before (gradual) underflow.   

    IEEE    (input) LOGICAL   
            A logical flag specifying whether or not the arithmetic   
            system is thought to comply with the IEEE standard.   

    EMAX    (output) INTEGER   
            The largest exponent before overflow   

    RMAX    (output) REAL   
            The largest machine floating-point number.   

   =====================================================================   


       First compute LEXP and UEXP, two powers of 2 that bound   
       abs(EMIN). We then assume that EMAX + abs(EMIN) will sum   
       approximately to the bound that is closest to abs(EMIN).   
       (EMAX is the exponent of the required number RMAX). */

    lexp = 1;
    exbits = 1;
L10:
    try__ = lexp << 1;
    if (try__ <= -(*emin)) {
	lexp = try__;
	++exbits;
	goto L10;
    }
    if (lexp == -(*emin)) {
	uexp = lexp;
    } else {
	uexp = try__;
	++exbits;
    }

/*     Now -LEXP is less than or equal to EMIN, and -UEXP is greater   
       than or equal to EMIN. EXBITS is the number of bits needed to   
       store the exponent. */

    if (uexp + *emin > -lexp - *emin) {
	expsum = lexp << 1;
    } else {
	expsum = uexp << 1;
    }

/*     EXPSUM is the exponent range, approximately equal to   
       EMAX - EMIN + 1 . */

    *emax = expsum + *emin - 1;
    nbits = exbits + 1 + *p;

/*     NBITS is the total number of bits needed to store a   
       floating-point number. */

    if (nbits % 2 == 1 && *beta == 2) {

/*        Either there are an odd number of bits used to store a   
          floating-point number, which is unlikely, or some bits are   
          not used in the representation of numbers, which is possible,   
          (e.g. Cray machines) or the mantissa has an implicit bit,   
          (e.g. IEEE machines, Dec Vax machines), which is perhaps the   
          most likely. We have to assume the last alternative.   
          If this is true, then we need to reduce EMAX by one because   
          there must be some way of representing zero in an implicit-bit   
          system. On machines like Cray, we are reducing EMAX by one   
          unnecessarily. */

	--(*emax);
    }

    if (*ieee) {

/*        Assume we are on an IEEE machine which reserves one exponent   
          for infinity and NaN. */

	--(*emax);
    }

/*     Now create RMAX, the largest machine number, which should   
       be equal to (1.0 - BETA**(-P)) * BETA**EMAX .   

       First compute 1.0 - BETA**(-P), being careful that the   
       result is less than 1.0 . */

    recbas = 1.f / *beta;
    z__ = *beta - 1.f;
    y = 0.f;
    i__1 = *p;
    for (i__ = 1; i__ <= i__1; ++i__) {
	z__ *= recbas;
	if (y < 1.f) {
	    oldy = y;
	}
	y = slamc3_(&y, &z__);
/* L20: */
    }
    if (y >= 1.f) {
	y = oldy;
    }

/*     Now multiply by BETA**EMAX to get RMAX. */

    i__1 = *emax;
    for (i__ = 1; i__ <= i__1; ++i__) {
	r__1 = y * *beta;
	y = slamc3_(&r__1, &c_b32);
/* L30: */
    }

    *rmax = y;
    return 0;

/*     End of SLAMC5 */

} /* slamc5_ */