factor/native/arithmetic.c

104 lines
2.1 KiB
C

#include "factor.h"
BIGNUM* fixnum_to_bignum(CELL n)
{
return bignum((BIGNUM_2)untag_fixnum_fast(n));
}
RATIO* fixnum_to_ratio(CELL n)
{
return ratio(n,tag_fixnum(1));
}
FLOAT* fixnum_to_float(CELL n)
{
return make_float((double)untag_fixnum_fast(n));
}
FIXNUM bignum_to_fixnum(CELL tagged)
{
return (FIXNUM)(((BIGNUM*)UNTAG(tagged))->n);
}
RATIO* bignum_to_ratio(CELL n)
{
return ratio(n,tag_fixnum(1));
}
FLOAT* bignum_to_float(CELL tagged)
{
return make_float((double)((BIGNUM*)UNTAG(tagged))->n);
}
FLOAT* ratio_to_float(CELL tagged)
{
RATIO* r = (RATIO*)UNTAG(tagged);
return (FLOAT*)UNTAG(divfloat(r->numerator,r->denominator));
}
void primitive_numberp(void)
{
check_non_empty(env.dt);
switch(type_of(env.dt))
{
case FIXNUM_TYPE:
case BIGNUM_TYPE:
case RATIO_TYPE:
env.dt = T;
break;
default:
env.dt = F;
break;
}
}
CELL to_integer(CELL tagged)
{
RATIO* r;
switch(type_of(tagged))
{
case FIXNUM_TYPE:
case BIGNUM_TYPE:
return tagged;
case RATIO_TYPE:
r = (RATIO*)UNTAG(tagged);
return divint(r->numerator,r->denominator);
default:
type_error(FIXNUM_TYPE,tagged);
return NULL; /* can't happen */
}
}
void primitive_to_integer(void)
{
env.dt = to_integer(env.dt);
}
/* EQUALITY */
CELL number_eq_anytype(CELL x, CELL y)
{
return F;
}
/* op */ /* anytype */ /* integer only */
BINARY_OP(number_eq, true, false)
BINARY_OP(add, false, false)
BINARY_OP(subtract, false, false)
BINARY_OP(multiply, false, false)
BINARY_OP(divide, false, false)
BINARY_OP(divint, false, true)
BINARY_OP(divfloat, false, false)
BINARY_OP(divmod, false, true)
BINARY_OP(mod, false, true)
BINARY_OP(and, false, true)
BINARY_OP(or, false, true)
BINARY_OP(xor, false, true)
BINARY_OP(shiftleft, false, true)
BINARY_OP(shiftright,false, true)
BINARY_OP(less, false, false)
BINARY_OP(lesseq, false, false)
BINARY_OP(greater, false, false)
BINARY_OP(greatereq, false, false)