BIF_RETTYPE float_1(BIF_ALIST_1)
{
Eterm res;
Eterm* hp;
FloatDef f;
/* check args */
if (is_not_integer(BIF_ARG_1)) {
if (is_float(BIF_ARG_1)) {
BIF_RET(BIF_ARG_1);
} else {
badarg:
BIF_ERROR(BIF_P, BADARG);
}
}
if (is_small(BIF_ARG_1)) {
Sint i = signed_val(BIF_ARG_1);
f.fd = i; /* use "C"'s auto casting */
} else if (big_to_double(BIF_ARG_1, &f.fd) < 0) {
goto badarg;
}
hp = HAlloc(BIF_P, FLOAT_SIZE_OBJECT);
res = make_float(hp);
PUT_DOUBLE(f, hp);
BIF_RET(res);
}
static Eterm
math_call_1(Process* p, double (*func)(double), Eterm arg1)
{
FloatDef a1;
Eterm res;
Eterm* hp;
ERTS_FP_CHECK_INIT(p);
if (is_float(arg1)) {
GET_DOUBLE(arg1, a1);
} else if (is_small(arg1)) {
a1.fd = signed_val(arg1);
} else if (is_big(arg1)) {
if (big_to_double(arg1, &a1.fd) < 0) {
badarith:
p->freason = BADARITH;
return THE_NON_VALUE;
}
} else {
p->freason = BADARG;
return THE_NON_VALUE;
}
a1.fd = (*func)(a1.fd);
ERTS_FP_ERROR_THOROUGH(p, a1.fd, goto badarith);
hp = HAlloc(p, FLOAT_SIZE_OBJECT);
res = make_float(hp);
PUT_DOUBLE(a1, hp);
return res;
}
ERL_NIF_TERM enif_make_double(ErlNifEnv* env, double d)
{
Eterm* hp = alloc_heap(env,FLOAT_SIZE_OBJECT);
FloatDef f;
f.fd = d;
PUT_DOUBLE(f, hp);
return make_float(hp);
}
BIF_RETTYPE hipe_bifs_get_hrvtime_0(BIF_ALIST_0)
{
Eterm *hp;
Eterm res;
FloatDef f;
if (!hrvtime_is_started())
start_hrvtime();
f.fd = get_hrvtime();
hp = HAlloc(BIF_P, FLOAT_SIZE_OBJECT);
res = make_float(hp);
PUT_DOUBLE(f, hp);
BIF_RET(res);
}
BIF_RETTYPE abs_1(BIF_ALIST_1)
{
Eterm res;
Sint i0, i;
Eterm* hp;
/* integer arguments */
if (is_small(BIF_ARG_1)) {
i0 = signed_val(BIF_ARG_1);
i = ERTS_SMALL_ABS(i0);
if (i0 == MIN_SMALL) {
hp = HAlloc(BIF_P, BIG_UINT_HEAP_SIZE);
BIF_RET(uint_to_big(i, hp));
} else {
BIF_RET(make_small(i));
}
} else if (is_big(BIF_ARG_1)) {
if (!big_sign(BIF_ARG_1)) {
BIF_RET(BIF_ARG_1);
} else {
int sz = big_arity(BIF_ARG_1) + 1;
Uint* x;
hp = HAlloc(BIF_P, sz); /* See note at beginning of file */
sz--;
res = make_big(hp);
x = big_val(BIF_ARG_1);
*hp++ = make_pos_bignum_header(sz);
x++; /* skip thing */
while(sz--)
*hp++ = *x++;
BIF_RET(res);
}
} else if (is_float(BIF_ARG_1)) {
FloatDef f;
GET_DOUBLE(BIF_ARG_1, f);
if (f.fd < 0.0) {
hp = HAlloc(BIF_P, FLOAT_SIZE_OBJECT);
f.fd = fabs(f.fd);
res = make_float(hp);
PUT_DOUBLE(f, hp);
BIF_RET(res);
}
else
BIF_RET(BIF_ARG_1);
}
BIF_ERROR(BIF_P, BADARG);
}