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#ifdef GMP
#include "gmp.h"
/* define to show we included mp.h */
#define _MP_H
#define MP_ALLOCATED(x) MP(x)->_mp_alloc
#define MP_SELF(x) MP(x)->_mp_d
#define MP_SIZE(x) MP(x)->_mp_size
#define MP_LIMB_SIZE sizeof(mp_limb_t)
#define MP(x) (&((x)->big.big_mpz_t))
#define MP_ASSIGN_OBJECT(u,x) (type_of(x) == t_bignum ? mpz_set(u,MP(x)) : mpz_set_si(u,fix(x)))
/* temporary holders to put fixnums in ... */
typedef struct
{ MP_INT mpz;
mp_limb_t body;
} mpz_int;
/* for integers which are in the fixnum range, we allocate a temporary
place in the stack which we use to convert this into an MP
*/
#define SI_TEMP_DECL(w) mpz_int w
#define SI_TO_MP(x, temp) (mpz_set_si(MP(temp),(x)), MP(temp))
#define INTEGER_TO_MP(x, temp ) \
(type_of(x) == t_bignum ? MP(x) : SI_TO_MP(fix(x), temp))
#define INTEGER_TO_TEMP_MP(x, temp ) \
(type_of(x) == t_bignum ? (MP_ASSIGN_OBJECT(MP(temp),x),MP(temp)) : SI_TO_MP(fix(x), temp))
#define MPOP(action,function,x1,x2) \
do { \
function(MP(big_fixnum1) ,x1,x2); \
action maybe_replace_big(big_fixnum1); \
} while(0)
#define MPOP_DEST(where,function,x1,x2) \
do { extern MP_INT *verify_mp(); \
function(MP(where),x1,x2); \
verify_big_or_zero(where); \
} while(0)
/* #define MYmake_fixnum(action,x) \ */
/* do{register int CMPt1; \ */
/* action \ */
/* ((((CMPt1=(x))+1024)&-2048)==0?small_fixnum(CMPt1):make_fixnum1(CMPt1));}while(0) */
#define ineg(a_) (sizeof(a_)==sizeof(unsigned) ? (unsigned)-(a_) : (unsigned long)-(a_))
#define addii mpz_add
#define addsi(u,a,b) (a >= 0 ? mpz_add_ui(u,b,a) : mpz_sub_ui(u,b,ineg(a)))
#define addss(u,a,b) addsi(u,a,SI_TO_MP(b,big_fixnum1))
#define mulii mpz_mul
#define mulsi(u,s,i) mpz_mul_si(u,i,s)
#define mulss(u,s1,s2) mpz_mul_si(u,SI_TO_MP(s1,big_fixnum1),s2)
#define subii mpz_sub
#define subsi(u,a,b) mpz_sub(u,SI_TO_MP(a,big_fixnum1),b)
#define subis(u,a,b) (b >= 0 ? mpz_sub_ui(u,a,b) : mpz_add_ui(u,a,ineg(b)))
#define subss(u,a,b) subis(u,SI_TO_MP(a,big_fixnum1),b)
#define shifti(u,a,w) (w>=0 ? mpz_mul_2exp(u,a,w) : mpz_fdiv_q_2exp(u,a,ineg(w)))
#define cmpii(a,b) mpz_cmp(a,b)
#define BIG_SIGN(x) mpz_sgn(MP(x))
#define MP_SIGN(x) mpz_sgn(MP(x))
#define signe(u) mpz_sgn(u)
#define ZERO_BIG(x) (mpz_set_ui(MP(x),0))
/* force to be positive or negative according to sign. */
#define SET_BIG_SIGN(x,sign) \
do{if (sign < 0) {if (big_sign(x) > 0) mpz_neg(MP(x),MP(x)); } \
else { if (big_sign(x) < 0) mpz_neg(MP(x),MP(x)); } } while(0)
#define MP_LOW(u,n) (*(u)->_mp_d)
/* the bit length of each word in bignum representation */
#define BIG_RADIX 32
/* #define MP_COUNT_BITS(u) mpz_sizeinbase(u,2) */
#define MP_BITCOUNT(u) mpz_bitcount(u)
#define MP_SIZE_IN_BASE2(u) mpz_bitlength(u)
#else
#include "genpari.h"
#undef K
#undef subis
#define subis(y,x) (x== (1<<31) ? addii(ABS_MOST_NEGS,y) : addsi(-x,y))
GEN subss();
#define SI_TO_MP(x,ignore) stoi(x)
#define INT_FLAG 0x1010000
#define MP_ALLOCATED(x) (x)->big.big_length
#define MP_SELF(x) (x)->big.big_self
#define MP_LIMB_SIZE (sizeof(long))
#define MP_SELF(x) MP(x)._mp_d
/* the bit length of each word in bignum representation */
#define BIG_RADIX 32
/* used for gc protecting */
object big_register_1;
object big_minus();
object make_bignum();
object make_integer();
#define BIG_SIGN(x) signe(MP(x))
#define SET_BIG_SIGN(x,sign) setsigne(MP(x),sign)
#define MP(x) ((GEN)((x)->big.big_self))
#define MP_START_LOW(u,x,l) u = (x)+l
#define MP_START_HIGH(u,x,l) u = (x)+2
#define MP_NEXT_UP(u) (*(--(u)))
#define MP_NEXT_DOWN(u) (*((u)++))
/* ith word from the least significant */
#define MP_ITH_WORD(u,i,l) (u)[l-i-1]
#define MP_CODE_WORDS 2
/* MP_LOW(x,lgef(x)) is the least significant word */
#define MP_LOW(x,l) ((x)[(l)-1])
/* most significant word if l is the lgef(x) */
#define MP_HIGH(x,l) (x)[2]
#define MP_ONLY_WORD(u) MP_LOW((u),(MP_CODE_WORDS+1))
#define MP_BITCOUNT(u) gen_bitcount(u)
#define MP_SIZE_IN_BASE2(u) gen_bitlength(u)
#define MP_FIRST(x) ((MP(x))[2])
#define MP_SIGN(x) (signe(MP(x)))
#define ZERO_BIG(x) \
do { (x)->big.big_length = 2; \
(x)->big.big_self = gzero;} while(0)
GEN addss();
#define MPOP(dowith, fun,x1,x2) \
do{GEN _xgen ; \
save_avma ; \
_xgen =fun(x1,x2) ;\
restore_avma; \
dowith make_integer(_xgen); }while(0)
#define MPOP_DEST(where ,fun,x1,x2) \
do{GEN _xgen ; \
save_avma ; \
_xgen =fun(x1,x2) ;\
restore_avma; \
gcopy_to_big(_xgen,where); }while(0)
#endif
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