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/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 1997-2009. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
* compliance with the License. You should have received a copy of the
* Erlang Public License along with this software. If not, it can be
* retrieved online at http://www.erlang.org/.
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* %CopyrightEnd%
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "sys.h"
#include "erl_vm.h"
#include "global.h"
#include "erl_process.h"
#include "error.h"
#include "bif.h"
#include "big.h"
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;
}
static Eterm
math_call_2(Process* p, double (*func)(double, double), Eterm arg1, Eterm arg2)
{
FloatDef a1;
FloatDef a2;
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;
}
if (is_float(arg2)) {
GET_DOUBLE(arg2, a2);
} else if (is_small(arg2)) {
a2.fd = signed_val(arg2);
} else if (is_big(arg2)) {
if (big_to_double(arg2, &a2.fd) < 0) {
goto badarith;
}
} else {
p->freason = BADARG;
return THE_NON_VALUE;
}
a1.fd = (*func)(a1.fd, a2.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;
}
BIF_RETTYPE math_cos_1(BIF_ALIST_1)
{
return math_call_1(BIF_P, cos, BIF_ARG_1);
}
BIF_RETTYPE math_cosh_1(BIF_ALIST_1)
{
return math_call_1(BIF_P, cosh, BIF_ARG_1);
}
BIF_RETTYPE math_sin_1(BIF_ALIST_1)
{
return math_call_1(BIF_P, sin, BIF_ARG_1);
}
BIF_RETTYPE math_sinh_1(BIF_ALIST_1)
{
return math_call_1(BIF_P, sinh, BIF_ARG_1);
}
BIF_RETTYPE math_tan_1(BIF_ALIST_1)
{
return math_call_1(BIF_P, tan, BIF_ARG_1);
}
BIF_RETTYPE math_tanh_1(BIF_ALIST_1)
{
return math_call_1(BIF_P, tanh, BIF_ARG_1);
}
BIF_RETTYPE math_acos_1(BIF_ALIST_1)
{
return math_call_1(BIF_P, acos, BIF_ARG_1);
}
BIF_RETTYPE math_acosh_1(BIF_ALIST_1)
{
#ifdef NO_ACOSH
BIF_ERROR(BIF_P, EXC_UNDEF);
#else
return math_call_1(BIF_P, acosh, BIF_ARG_1);
#endif
}
BIF_RETTYPE math_asin_1(BIF_ALIST_1)
{
return math_call_1(BIF_P, asin, BIF_ARG_1);
}
BIF_RETTYPE math_asinh_1(BIF_ALIST_1)
{
#ifdef NO_ASINH
BIF_ERROR(BIF_P, EXC_UNDEF);
#else
return math_call_1(BIF_P, asinh, BIF_ARG_1);
#endif
}
BIF_RETTYPE math_atan_1(BIF_ALIST_1)
{
return math_call_1(BIF_P, atan, BIF_ARG_1);
}
BIF_RETTYPE math_atanh_1(BIF_ALIST_1)
{
#ifdef NO_ATANH
BIF_ERROR(BIF_P, EXC_UNDEF);
#else
return math_call_1(BIF_P, atanh, BIF_ARG_1);
#endif
}
BIF_RETTYPE math_erf_1(BIF_ALIST_1)
{
#ifdef NO_ERF
BIF_ERROR(BIF_P, EXC_UNDEF);
#else
return math_call_1(BIF_P, erf, BIF_ARG_1);
#endif
}
BIF_RETTYPE math_erfc_1(BIF_ALIST_1)
{
#ifdef NO_ERFC
BIF_ERROR(BIF_P, EXC_UNDEF);
#else
return math_call_1(BIF_P, erfc, BIF_ARG_1);
#endif
}
BIF_RETTYPE math_exp_1(BIF_ALIST_1)
{
return math_call_1(BIF_P, exp, BIF_ARG_1);
}
BIF_RETTYPE math_log_1(BIF_ALIST_1)
{
return math_call_1(BIF_P, log, BIF_ARG_1);
}
#ifdef HAVE_LOG2
static double
log2_wrapper(double x)
{
return log2(x);
}
#else
static double
log2_wrapper(double x)
{
return log(x) / 0.6931471805599453; /* log(2.0); */
}
#endif
BIF_RETTYPE math_log2_1(BIF_ALIST_1)
{
return math_call_1(BIF_P, log2_wrapper, BIF_ARG_1);
}
BIF_RETTYPE math_log10_1(BIF_ALIST_1)
{
return math_call_1(BIF_P, log10, BIF_ARG_1);
}
BIF_RETTYPE math_sqrt_1(BIF_ALIST_1)
{
return math_call_1(BIF_P, sqrt, BIF_ARG_1);
}
BIF_RETTYPE math_atan2_2(BIF_ALIST_2)
{
return math_call_2(BIF_P, atan2, BIF_ARG_1, BIF_ARG_2);
}
BIF_RETTYPE math_pow_2(BIF_ALIST_2)
{
return math_call_2(BIF_P, pow, BIF_ARG_1, BIF_ARG_2);
}
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