364 lines
11 KiB
C++
364 lines
11 KiB
C++
/***************************************************************************
|
|
*
|
|
* c_math.cpp - test exercising [lib.c.math]
|
|
*
|
|
* $Id: 26.c.math.cpp 648752 2008-04-16 17:01:56Z faridz $
|
|
*
|
|
***************************************************************************
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed
|
|
* with this work for additional information regarding copyright
|
|
* ownership. The ASF licenses this file to you under the Apache
|
|
* License, Version 2.0 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* permissions and limitations under the License.
|
|
*
|
|
* Copyright 2001-2006 Rogue Wave Software.
|
|
*
|
|
**************************************************************************/
|
|
|
|
// this may be the "native" header that comes with the compiler
|
|
// do not assume that any of our stuff (i.e., macros) is available
|
|
|
|
#if defined (__IBMCPP__) && !defined (_RWSTD_NO_IMPLICIT_INCLUSION)
|
|
// Disable implicit inclusion to work around
|
|
// a limitation in IBM's VisualAge 5.0.2.0 (see PR#26959)
|
|
|
|
# define _RWSTD_NO_IMPLICIT_INCLUSION
|
|
#endif
|
|
|
|
#include <cstdlib>
|
|
#include <cmath>
|
|
|
|
#include <any.h>
|
|
#include <driver.h>
|
|
#include <valcmp.h>
|
|
|
|
|
|
// define function templates with the same signatures as
|
|
// the required overloads; if the required overloads are
|
|
// not defined, the corresponding specializations of the
|
|
// function templates will be instantiated and called,
|
|
// triggering an assertion
|
|
|
|
#define FUN_1(name) \
|
|
template <class T> \
|
|
T name (T) { \
|
|
static const char* const tname = rw_any_t (T ()).type_name (); \
|
|
rw_assert (0, 0, __LINE__, "std::%s(%s) not declared\n", \
|
|
#name, tname); \
|
|
return T (); \
|
|
} typedef void unused_typedef
|
|
|
|
#define FUN_2(name) \
|
|
template <class T> \
|
|
T name (T, T) { \
|
|
static const char* const tname = rw_any_t (T ()).type_name (); \
|
|
rw_assert (0, 0, __LINE__, "std::%s (%s, %s) not declared\n", \
|
|
#name, tname, tname); \
|
|
return T (); \
|
|
} typedef void unused_typedef
|
|
|
|
#define FUN_2_PTR(name) \
|
|
template <class T> \
|
|
T name (T, T*) { \
|
|
static const char* const tname = rw_any_t (T ()).type_name (); \
|
|
rw_assert (0, 0, __LINE__, "std::%s (%s, %s*) not declared\n", \
|
|
#name, tname, tname); \
|
|
return T (); \
|
|
} typedef void unused_typedef
|
|
|
|
#define FUN_2_INT(name) \
|
|
template <class T> \
|
|
T name (T, int) { \
|
|
static const char* const tname = rw_any_t (T ()).type_name (); \
|
|
rw_assert (0, 0, __LINE__, "std::%s (%s, int) not declared\n", \
|
|
#name, tname); \
|
|
return T (); \
|
|
} typedef void unused_typedef
|
|
|
|
#define FUN_2_PINT(name) \
|
|
template <class T> \
|
|
T name (T, int*) { \
|
|
static const char* const tname = rw_any_t (T ()).type_name (); \
|
|
rw_assert (0, 0, __LINE__, "std::%s (%s, int*) not declared\n", \
|
|
#name, tname); \
|
|
return T (); \
|
|
} typedef void unused_typedef
|
|
|
|
|
|
_RWSTD_NAMESPACE (std) {
|
|
|
|
// abs() is not declared in the C header <math.h> but is required
|
|
// to be declared in the C++ headers <math.h> and <cmath>
|
|
FUN_1 (abs);
|
|
FUN_1 (acos);
|
|
FUN_1 (asin);
|
|
FUN_1 (atan);
|
|
FUN_2 (atan2);
|
|
FUN_1 (ceil);
|
|
FUN_1 (cos);
|
|
FUN_1 (cosh);
|
|
FUN_1 (div);
|
|
FUN_1 (exp);
|
|
FUN_1 (fabs);
|
|
FUN_1 (floor);
|
|
FUN_2 (fmod);
|
|
FUN_2_PINT (frexp);
|
|
FUN_2_INT (ldexp);
|
|
FUN_1 (log);
|
|
FUN_1 (log10);
|
|
FUN_2_PTR (modf);
|
|
FUN_2 (pow);
|
|
FUN_2_INT (pow);
|
|
FUN_1 (sin);
|
|
FUN_1 (sinh);
|
|
FUN_1 (sqrt);
|
|
FUN_1 (tan);
|
|
FUN_1 (tanh);
|
|
|
|
} // namespace std
|
|
|
|
|
|
// returns true if all `size' bytes starting at `s' are 0
|
|
static bool
|
|
check_bits (const char *s, unsigned size)
|
|
{
|
|
while (size-- && !s [size]);
|
|
return unsigned (-1) == size;
|
|
}
|
|
|
|
|
|
static void
|
|
clear_bytes (void *pb, _RWSTD_SIZE_T size)
|
|
{
|
|
for (_RWSTD_SIZE_T i = 0; i != size; ++i)
|
|
((char*)pb)[i] = 0;
|
|
}
|
|
|
|
|
|
static void
|
|
test_behavior ()
|
|
{
|
|
union {
|
|
float f;
|
|
double d;
|
|
|
|
#ifndef _RWSTD_NO_LONG_DOUBLE
|
|
long double l;
|
|
#endif // _RWSTD_NO_LONG_DOUBLE
|
|
|
|
char buf [sizeof (long double) * 2];
|
|
} u;
|
|
|
|
#if !defined (__SUNPRO_CC) || __SUNPRO_CC > 0x530
|
|
|
|
// make sure functions do not overflow buffer
|
|
clear_bytes (u.buf, sizeof u);
|
|
|
|
const float f = std::modf (3.141592f, &u.f);
|
|
|
|
rw_assert ( 3000 == int (u.f * 1000) && 141592 == int (f * 1000000)
|
|
&& check_bits (u.buf + sizeof u.f, sizeof u - sizeof u.f),
|
|
0, __LINE__, "float std::modf (float)");
|
|
|
|
#endif // SunPro > 5.3
|
|
|
|
clear_bytes (u.buf, sizeof u);
|
|
const double d = std::modf (3.1415926, &u.d);
|
|
|
|
rw_assert ( 3000 == int (u.d * 1000) && 1415926 == int (d * 10000000)
|
|
&& check_bits (u.buf + sizeof u.d, sizeof u - sizeof u.d),
|
|
0, __LINE__, "double std::modf (double)");
|
|
|
|
#ifndef _RWSTD_NO_LONG_DOUBLE
|
|
|
|
# if !defined (__SUNPRO_CC) || __SUNPRO_CC > 0x530
|
|
|
|
clear_bytes (u.buf, sizeof u);
|
|
const long double l = std::modf (3.1415926L, &u.l);
|
|
|
|
rw_assert ( 3000 == int (u.l * 1000) && 1415926 == int (l * 10000000)
|
|
&& check_bits (u.buf + sizeof u.l, sizeof u - sizeof u.l),
|
|
0, __LINE__, "long double std::modf (long double)");
|
|
|
|
# endif // SunPro > 5.3
|
|
|
|
#endif // _RWSTD_NO_LONG_DOUBLE
|
|
|
|
|
|
// check overloads of std::pow()
|
|
for (int i = -10; i != 10; ++i) {
|
|
|
|
for (int j = -10; j != 10; ++j) {
|
|
|
|
if (-9 < j && j < 9) {
|
|
const float fi = float (i);
|
|
const float fj = float (j);
|
|
|
|
// verify that both versions are equivalent
|
|
const float xf = std::pow (fi, j);
|
|
const float yf = std::pow (fi, fj);
|
|
|
|
rw_assert (rw_equal (xf, yf) || !i && j < 0,
|
|
0, __LINE__,
|
|
"std::pow (%d.0f, %d) = %g, "
|
|
"std::pow (%d,0f, %d.0f) = %g",
|
|
i, j, xf, i, j, yf);
|
|
}
|
|
|
|
const double id = double (i);
|
|
const double jd = double (j);
|
|
|
|
const double xd = std::pow (id, j);
|
|
const double yd = std::pow (id, jd);
|
|
|
|
rw_assert (rw_equal (xd, yd) || !i && j < 0,
|
|
0, __LINE__,
|
|
"std::pow (%d.0, %d) = %g, "
|
|
"std::pow (%d.0, %d.0) = %g",
|
|
i, j, xd, i, j, yd);
|
|
|
|
#ifndef _RWSTD_NO_LONG_DOUBLE
|
|
|
|
const long double il = _RWSTD_STATIC_CAST (long double, i);
|
|
const long double jl = _RWSTD_STATIC_CAST (long double, j);
|
|
|
|
const long double xl = std::pow (il, j);
|
|
const long double yl = std::pow (il, jl);
|
|
|
|
rw_assert (rw_equal (xl, yl) || !i && j < 0,
|
|
0, __LINE__,
|
|
"std::pow (%d.0L, %d) = %Lg, "
|
|
"std::pow (%d.0L, %d.0L) = %Lg",
|
|
i, j, xl, i, j, yl);
|
|
|
|
#endif // _RWSTD_NO_LONG_DOUBLE
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
test_declarations ()
|
|
{
|
|
_USING (namespace std);
|
|
|
|
int i = 1;
|
|
long l = 1;
|
|
|
|
float f = 0.1;
|
|
double d = 0.1;
|
|
|
|
#ifndef _RWSTD_NO_LONG_DOUBLE
|
|
|
|
long double ld = 0.1;
|
|
|
|
# define CHECK_OVERLOADS(name) \
|
|
rw_info (0, 0, __LINE__, "std::%s() overloads ", #name); \
|
|
(void)name (f); \
|
|
(void)name (d); \
|
|
(void)name (ld)
|
|
#else // if defined (_RWSTD_NO_LONG_DOUBLE)
|
|
# define CHECK_OVERLOADS(name) \
|
|
rw_info (0, 0, __LINE__, "std::%s() overloads", #name); \
|
|
(void)name (f); \
|
|
(void)name (d)
|
|
#endif // _RWSTD_NO_LONG_DOUBLE
|
|
|
|
CHECK_OVERLOADS (abs);
|
|
CHECK_OVERLOADS (acos);
|
|
CHECK_OVERLOADS (asin);
|
|
CHECK_OVERLOADS (atan);
|
|
CHECK_OVERLOADS (atan);
|
|
CHECK_OVERLOADS (ceil);
|
|
CHECK_OVERLOADS (cos);
|
|
CHECK_OVERLOADS (cosh);
|
|
CHECK_OVERLOADS (exp);
|
|
CHECK_OVERLOADS (fabs);
|
|
CHECK_OVERLOADS (floor);
|
|
|
|
rw_info (0, 0, __LINE__, "std::%s() overloads", "fmod");
|
|
(void)fmod (f, f); (void)fmod (d, d);
|
|
|
|
rw_info (0, 0, __LINE__, "std::%s() overloads", "frexp");
|
|
(void)frexp (f, &i); (void)frexp (d, &i);
|
|
|
|
rw_info (0, 0, __LINE__, "std::%s() overloads", "ldexp");
|
|
(void)ldexp (f, i); (void)ldexp (d, i);
|
|
|
|
CHECK_OVERLOADS (log);
|
|
CHECK_OVERLOADS (log10);
|
|
|
|
rw_info (0, 0, __LINE__, "std::%s() overloads", "modf");
|
|
(void)modf (f, &f); (void)modf (d, &d);
|
|
|
|
rw_info (0, 0, __LINE__, "std::%s() overloads", "pow");
|
|
(void)pow (f, f); (void)pow (d, d);
|
|
(void)pow (f, i); (void)pow (d, i);
|
|
|
|
CHECK_OVERLOADS (sin);
|
|
CHECK_OVERLOADS (sinh);
|
|
CHECK_OVERLOADS (sqrt);
|
|
CHECK_OVERLOADS (tan);
|
|
CHECK_OVERLOADS (tanh);
|
|
|
|
#ifndef _RWSTD_NO_LONG_DOUBLE
|
|
|
|
(void)atan2 (ld, ld);
|
|
(void)fmod (ld, ld);
|
|
(void)frexp (ld, &i);
|
|
(void)ldexp (ld, i);
|
|
(void)modf (ld, &ld);
|
|
(void)pow (ld, ld);
|
|
(void)pow (ld, i);
|
|
|
|
#endif // _RWSTD_NO_LONG_DOUBLE
|
|
|
|
rw_info (0, 0, __LINE__, "std::%s() overloads", "div");
|
|
(void)div (i, i);
|
|
(void)div (l, l);
|
|
}
|
|
|
|
/**************************************************************************/
|
|
|
|
static int no_declarations;
|
|
static int no_behavior;
|
|
|
|
|
|
int run_test (int, char*[])
|
|
{
|
|
if (no_declarations)
|
|
rw_note (0, __FILE__, __LINE__, "test of declarations disabled");
|
|
else
|
|
test_declarations ();
|
|
|
|
if (no_behavior)
|
|
rw_note (0, __FILE__, __LINE__, "test of behavior disabled");
|
|
else
|
|
test_behavior ();
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**************************************************************************/
|
|
|
|
int main (int argc, char *argv[])
|
|
{
|
|
return rw_test (argc, argv, __FILE__,
|
|
"lib.c.math",
|
|
0 /* no comment */, run_test,
|
|
"|-no-declarations# |-no-behavior#",
|
|
&no_declarations, &no_behavior);
|
|
}
|