390 lines
12 KiB
C++
390 lines
12 KiB
C++
/***************************************************************************
|
|
*
|
|
* 26.inner.product.cpp - test exercising 26.4.2 [lib.inner.product]
|
|
*
|
|
* $Id: 26.inner.product.cpp 510970 2007-02-23 14:57:45Z 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 2006 Rogue Wave Software.
|
|
*
|
|
**************************************************************************/
|
|
|
|
#include <numeric> // for inner_product
|
|
#include <cstddef> // for size_t
|
|
|
|
#include <alg_test.h>
|
|
#include <rw_value.h> // for UserClass
|
|
#include <driver.h> // for rw_test()
|
|
|
|
/**************************************************************************/
|
|
|
|
// plus-assign
|
|
template <class T>
|
|
struct plus_asgn: T
|
|
{
|
|
plus_asgn& operator+= (const plus_asgn& rhs) {
|
|
unused = rhs.unused;
|
|
return *this;
|
|
}
|
|
private:
|
|
// unused member prevents bogus HP aCC warnings (see Onyx #23561)
|
|
int unused;
|
|
};
|
|
|
|
template <class T>
|
|
const plus_asgn<T>&
|
|
operator* (const plus_asgn<T> &lhs, const plus_asgn<T> &rhs)
|
|
{
|
|
_RWSTD_UNUSED (rhs);
|
|
|
|
return lhs;
|
|
}
|
|
|
|
|
|
_RWSTD_NAMESPACE (std) {
|
|
|
|
// disable explicit instantiation for compilers (like MSVC)
|
|
// that can't handle it
|
|
#ifndef _RWSTD_NO_EXPLICIT_INSTANTIATION
|
|
|
|
template
|
|
plus_asgn<assign<base<cpy_ctor> > >
|
|
inner_product (InputIter<plus_asgn<assign<base<cpy_ctor> > > >,
|
|
InputIter<plus_asgn<assign<base<cpy_ctor> > > >,
|
|
InputIter<plus_asgn<assign<base<cpy_ctor> > > >,
|
|
plus_asgn<assign<base<cpy_ctor> > >);
|
|
|
|
template
|
|
assign<base<cpy_ctor> >
|
|
inner_product (InputIter<assign<base<cpy_ctor> > >,
|
|
InputIter<assign<base<cpy_ctor> > >,
|
|
InputIter<assign<base<cpy_ctor> > >,
|
|
assign<base<cpy_ctor> >,
|
|
binary_func<assign<base<cpy_ctor> > >,
|
|
binary_func<assign<base<cpy_ctor> > >);
|
|
|
|
#endif // _RWSTD_NO_EXPLICIT_INSTANTIATION
|
|
|
|
} // namespace std
|
|
|
|
/**************************************************************************/
|
|
|
|
UserClass operator* (const UserClass& lhs, const UserClass& rhs)
|
|
{
|
|
return UserClass (lhs) *= rhs;
|
|
}
|
|
|
|
/**************************************************************************/
|
|
|
|
template <class T>
|
|
struct conv_to_T
|
|
{
|
|
static conv_to_T make (T val) {
|
|
return conv_to_T (val);
|
|
}
|
|
|
|
// strictly convertible to a T value
|
|
operator T () const {
|
|
return val_;
|
|
}
|
|
|
|
private:
|
|
// not (publicly) Default-Constructible
|
|
conv_to_T (T val): val_ (val) { }
|
|
|
|
void operator= (conv_to_T); // not Assignable
|
|
void operator!() const; // not defined
|
|
|
|
T val_;
|
|
};
|
|
|
|
/**************************************************************************/
|
|
|
|
struct Accumulator
|
|
{
|
|
static std::size_t funcalls_;
|
|
|
|
// dummy arguments provided to prevent the class from being
|
|
// default constructible and implicit conversion from int
|
|
Accumulator (int /* dummy */, int /* dummy */) {
|
|
funcalls_ = 0;
|
|
}
|
|
|
|
// return a type convertible to UserClass
|
|
conv_to_T<UserClass> operator() (const UserClass &x,
|
|
const UserClass &y) /* non-const */ {
|
|
++funcalls_;
|
|
UserClass res (x);
|
|
res.data_.val_ += y.data_.val_;
|
|
return conv_to_T<UserClass>::make (res);
|
|
}
|
|
|
|
private:
|
|
void operator= (Accumulator&); // not assignable
|
|
};
|
|
|
|
std::size_t Accumulator::funcalls_;
|
|
|
|
|
|
struct Multiplicator
|
|
{
|
|
static std::size_t funcalls_;
|
|
|
|
// dummy arguments provided to prevent the class from being
|
|
// default constructible and implicit conversion from int
|
|
Multiplicator (int /* dummy */, int /* dummy */) {
|
|
funcalls_ = 0;
|
|
}
|
|
|
|
// return a type convertible to UserClass
|
|
conv_to_T<UserClass> operator() (const UserClass &x,
|
|
const UserClass &y) /* non-const */ {
|
|
++funcalls_;
|
|
UserClass res (x);
|
|
res.data_.val_ *= y.data_.val_;
|
|
return conv_to_T<UserClass>::make (res);
|
|
}
|
|
|
|
private:
|
|
void operator= (Multiplicator&); // not assignable
|
|
};
|
|
|
|
std::size_t Multiplicator::funcalls_;
|
|
|
|
/**************************************************************************/
|
|
|
|
struct InnerProductBase
|
|
{
|
|
virtual ~InnerProductBase() { /* no-op */ }
|
|
|
|
const char* iter_names [2];
|
|
|
|
// pure virtual
|
|
virtual UserClass
|
|
inner_product (const UserClass *xsrc1, const UserClass *xsrc1_end,
|
|
const UserClass *xsrc2, const UserClass *xsrc2_end,
|
|
const UserClass& init, const Accumulator *op1,
|
|
const Multiplicator *op2) const = 0;
|
|
};
|
|
|
|
template <class InputIterator1, class InputIterator2>
|
|
struct InnerProduct : InnerProductBase
|
|
{
|
|
InnerProduct () {
|
|
iter_names [0] = type_name (InputIterator1 (0, 0, 0), (UserClass*)0);
|
|
iter_names [1] = type_name (InputIterator2 (0, 0, 0), (UserClass*)0);
|
|
}
|
|
|
|
virtual UserClass
|
|
inner_product (const UserClass *xsrc1, const UserClass *xsrc1_end,
|
|
const UserClass *xsrc2, const UserClass *xsrc2_end,
|
|
const UserClass& init, const Accumulator *op1,
|
|
const Multiplicator *op2) const {
|
|
|
|
const InputIterator1 first1 (xsrc1, xsrc1, xsrc1_end);
|
|
const InputIterator1 last1 (xsrc1_end, xsrc1, xsrc1_end);
|
|
const InputIterator2 first2 (xsrc2, xsrc2, xsrc2_end);
|
|
|
|
const UserClass res = op1 ?
|
|
std::inner_product (first1, last1, first2, init, *op1, *op2)
|
|
: std::inner_product (first1, last1, first2, init);
|
|
|
|
// silence EDG eccp 3.7 and prior remark #550-D:
|
|
// variable was set but never used
|
|
_RWSTD_UNUSED (res);
|
|
|
|
return res;
|
|
}
|
|
};
|
|
|
|
/**************************************************************************/
|
|
|
|
// exercises inner_product (26.4.2)
|
|
void test_inner_product (const std::size_t N,
|
|
const InnerProductBase &alg,
|
|
bool binop)
|
|
{
|
|
const char* const it1name = alg.iter_names [0];
|
|
const char* const it2name = alg.iter_names [1];
|
|
const char* const tname = "UserClass";
|
|
const char* const op1name = "Plus";
|
|
const char* const op2name = "Multiple";
|
|
|
|
rw_info (0, 0, 0,
|
|
"std::inner_product (%s, %1$s, %s, %s%{?}, %s, %s%{;})",
|
|
it1name, it2name, tname, binop, op1name, op2name);
|
|
|
|
// construct initial UserClass
|
|
const UserClass init = UserClass ();
|
|
int sum = init.data_.val_;
|
|
|
|
UserClass::gen_ = gen_seq;
|
|
|
|
UserClass* const buf1 = new UserClass [N];
|
|
UserClass* const buf2 = new UserClass [N];
|
|
|
|
for (std::size_t i = 0; i != N; ++i) {
|
|
|
|
UserClass* const buf1_end = buf1 + i;
|
|
UserClass* const buf2_end = buf2 + i;
|
|
|
|
const Accumulator acc (0, 0);
|
|
const Multiplicator mult (0, 0);
|
|
|
|
const Accumulator* const pbinop1 = binop ? &acc : 0;
|
|
const Multiplicator* const pbinop2 = binop ? &mult : 0;
|
|
|
|
const UserClass res = alg.inner_product (buf1, buf1_end, buf2, buf2_end,
|
|
init, pbinop1, pbinop2);
|
|
|
|
// verify the result 26.4.1, p1
|
|
bool success = sum == res.data_.val_;
|
|
rw_assert (success, 0, __LINE__,
|
|
"inner_product <%s, %s, %s%{?}, %s, %s%{;}>"
|
|
"({%{X=+*}}, {%{X=+*}}) == %d, got %d",
|
|
it1name, it2name, tname, binop, op1name, op2name,
|
|
int (i), buf1, int (i), buf2, sum, res.data_.val_);
|
|
|
|
sum += (buf1 [i].data_.val_ * buf2 [i].data_.val_);
|
|
|
|
if (!success)
|
|
break;
|
|
}
|
|
|
|
delete[] buf1;
|
|
delete[] buf2;
|
|
}
|
|
|
|
/**************************************************************************/
|
|
|
|
/* extern */ int rw_opt_nloops = 64; // --nloops
|
|
/* extern */ int rw_opt_no_binary_op; // --no-binary_op
|
|
/* extern */ int rw_opt_no_input_iter; // --no-InputIterator
|
|
/* extern */ int rw_opt_no_fwd_iter; // --no-ForwardIterator
|
|
/* extern */ int rw_opt_no_bidir_iter; // --no-BidirectionalIterator
|
|
/* extern */ int rw_opt_no_rnd_iter; // --no-RandomAccessIterator
|
|
|
|
/**************************************************************************/
|
|
|
|
template <class InputIterator1, class InputIterator2>
|
|
void gen_inner_product_test (const std::size_t N,
|
|
const InputIterator1&,
|
|
const InputIterator2&,
|
|
bool binop)
|
|
{
|
|
const InnerProduct<InputIterator1, InputIterator2> alg;
|
|
|
|
test_inner_product (N, alg, binop);
|
|
}
|
|
|
|
|
|
template <class InputIterator1>
|
|
void gen_inner_product_test (const std::size_t N,
|
|
const InputIterator1 &it1,
|
|
bool binop)
|
|
{
|
|
if (0 == rw_opt_no_input_iter)
|
|
gen_inner_product_test (
|
|
N, it1, InputIter<UserClass>(0, 0, 0), binop);
|
|
if (0 == rw_opt_no_fwd_iter)
|
|
gen_inner_product_test (
|
|
N, it1, ConstFwdIter<UserClass>(0, 0, 0), binop);
|
|
if (0 == rw_opt_no_bidir_iter)
|
|
gen_inner_product_test (
|
|
N, it1, ConstBidirIter<UserClass>(0, 0, 0), binop);
|
|
if (0 == rw_opt_no_rnd_iter)
|
|
gen_inner_product_test (
|
|
N, it1, ConstRandomAccessIter<UserClass>(0, 0, 0), binop);
|
|
}
|
|
|
|
// generates a specialization of the inner_product test for each of the required
|
|
// iterator categopries
|
|
void gen_inner_product_test (const std::size_t N,
|
|
bool binop)
|
|
{
|
|
rw_info (0, 0, 0,
|
|
"template <class %s, class %s, class %s%{?}, class %s, "
|
|
"class %s%{;}> %3$s inner_product (%1$s, %1$s, %2$s, "
|
|
"%3$s%{?}, %s, %s%{;})",
|
|
"InputIterator1", "InputIterator2", "UserClass",
|
|
binop, "BinaryOperation1", "BinaryOperation2", binop,
|
|
"BinaryOperation1", "BinaryOperation2");
|
|
|
|
if (rw_opt_no_input_iter)
|
|
rw_note (0, 0, 0, "InputIterator test disabled");
|
|
else
|
|
gen_inner_product_test (N, InputIter<UserClass>(0, 0, 0), binop);
|
|
|
|
if (rw_opt_no_fwd_iter)
|
|
rw_note (0, 0, 0, "ForwardIterator test disabled");
|
|
else
|
|
gen_inner_product_test (N, ConstFwdIter<UserClass>(0, 0, 0), binop);
|
|
|
|
if (rw_opt_no_bidir_iter)
|
|
rw_note (0, 0, 0, "BidirectionalIterator test disabled");
|
|
else
|
|
gen_inner_product_test (N, ConstBidirIter<UserClass>(0, 0, 0), binop);
|
|
|
|
if (rw_opt_no_rnd_iter)
|
|
rw_note (0, 0, 0, "RandomAccessIterator test disabled");
|
|
else
|
|
gen_inner_product_test (N, ConstRandomAccessIter<UserClass>(0, 0, 0),
|
|
binop);
|
|
}
|
|
|
|
/**************************************************************************/
|
|
|
|
static int
|
|
run_test (int, char*[])
|
|
{
|
|
const std::size_t N = std::size_t (rw_opt_nloops);
|
|
|
|
gen_inner_product_test (N, false);
|
|
|
|
if (rw_opt_no_binary_op)
|
|
rw_note (0, 0, 0,
|
|
"inner_product with binary operations test disabled");
|
|
else
|
|
gen_inner_product_test (N, true);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**************************************************************************/
|
|
|
|
int main (int argc, char *argv[])
|
|
{
|
|
return rw_test (argc, argv, __FILE__,
|
|
"lib.inner.product",
|
|
0 /* no comment */, run_test,
|
|
"|-nloops#0 " // must be non-negative
|
|
"|-no-binary_op#"
|
|
"|-no-InputIterator# "
|
|
"|-no-ForwardIterator# "
|
|
"|-no-BidirectionalIterator# "
|
|
"|-no-RandomAccessIterator#",
|
|
&rw_opt_nloops,
|
|
&rw_opt_no_binary_op,
|
|
&rw_opt_no_input_iter,
|
|
&rw_opt_no_fwd_iter,
|
|
&rw_opt_no_bidir_iter,
|
|
&rw_opt_no_rnd_iter);
|
|
}
|