335 lines
12 KiB
C++
335 lines
12 KiB
C++
/***************************************************************************
|
|
*
|
|
* 25.lex.comparison.cpp - test exercising 25.3.8 [lib.lex.comparison]
|
|
*
|
|
* $Id: 25.lex.comparison.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 1994-2006 Rogue Wave Software.
|
|
*
|
|
**************************************************************************/
|
|
|
|
#include <algorithm> // for lexicographical_compare
|
|
#include <cstring> // for strlen, size_t
|
|
|
|
#include <alg_test.h>
|
|
#include <rw_value.h> // for UserClass
|
|
#include <driver.h> // for rw_test()
|
|
|
|
/**************************************************************************/
|
|
|
|
_RWSTD_NAMESPACE (std) {
|
|
|
|
#ifndef _RWSTD_NO_EXPLICIT_INSTANTIATION
|
|
|
|
// explicitly instantiate on types with minimum features
|
|
// to verify that the algorithm imposes no requirements
|
|
// beyond those specified
|
|
template
|
|
bool lexicographical_compare (InputIter<lt_comp<base<> > >,
|
|
InputIter<lt_comp<base<> > >,
|
|
InputIter<lt_comp<base<> > >,
|
|
InputIter<lt_comp<base<> > >);
|
|
template
|
|
bool lexicographical_compare (InputIter<base<> >,
|
|
InputIter<base<> >,
|
|
InputIter<base<> >,
|
|
InputIter<base<> >,
|
|
binary_predicate<base<> >);
|
|
|
|
#endif // _RWSTD_NO_EXPLICIT_INSTANTIATION
|
|
|
|
} // namespace std
|
|
|
|
/**************************************************************************/
|
|
|
|
template <class T>
|
|
struct Less
|
|
{
|
|
static std::size_t funcalls_;
|
|
|
|
// dummy arguments provided to prevent the class from being
|
|
// default constructible and implicit conversion from int
|
|
Less (int /* dummy */, int /* dummy */) {
|
|
funcalls_ = 0;
|
|
}
|
|
|
|
// return a type other than bool but one that is implicitly
|
|
// convertible to bool to detect incorrect assumptions
|
|
conv_to_bool operator() (const T &x, const T &y) /* non-const */ {
|
|
++funcalls_;
|
|
return conv_to_bool::make (x.data_.val_ < y.data_.val_);
|
|
}
|
|
|
|
static const char* name () { return "Less"; }
|
|
|
|
private:
|
|
void operator= (Less&); // not assignable
|
|
};
|
|
|
|
template<class T> std::size_t Less<T>::funcalls_;
|
|
|
|
/**************************************************************************/
|
|
|
|
// exercise lexicographical_compare 25.3.8
|
|
template
|
|
<class T, class InputIterator1, class InputIterator2, class Predicate>
|
|
void test_lex_compare (int line,
|
|
const char *src1,
|
|
const char *src2,
|
|
bool res,
|
|
const InputIterator1 &it1,
|
|
const InputIterator2 &it2,
|
|
const T*,
|
|
const Predicate *ppred)
|
|
{
|
|
const char* const it1name = type_name (it1, (T*)0);
|
|
const char* const it2name = type_name (it2, (T*)0);
|
|
const char* const fname = "lexicographical_compare";
|
|
const char* const funname = Predicate::name ();
|
|
|
|
const std::size_t nsrc1 = std::strlen (src1);
|
|
const std::size_t nsrc2 = std::strlen (src2);
|
|
|
|
T* const xsrc1 = T::from_char (src1, nsrc1);
|
|
T* const xsrc2 = T::from_char (src2, nsrc2);
|
|
|
|
T* const xsrc1_end = xsrc1 + nsrc1;
|
|
T* const xsrc2_end = xsrc2 + nsrc2;
|
|
|
|
const InputIterator1 first1 = make_iter (xsrc1, xsrc1, xsrc1_end, it1);
|
|
const InputIterator1 last1 = make_iter (xsrc1_end, xsrc1, xsrc1_end, it1);
|
|
const InputIterator2 first2 = make_iter (xsrc2, xsrc2, xsrc2_end, it2);
|
|
const InputIterator2 last2 = make_iter (xsrc2_end, xsrc2, xsrc2_end, it2);
|
|
|
|
const Predicate pred (0, 0);
|
|
|
|
const std::size_t last_n_op_lt = T::n_total_op_lt_;
|
|
|
|
const bool result = ppred ?
|
|
std::lexicographical_compare (first1, last1, first2, last2, pred)
|
|
: std::lexicographical_compare (first1, last1, first2, last2);
|
|
|
|
// verify the returned value 25.3.8, p1 and p3: If two sequences have
|
|
// the same number of elements and their corresponding elements are
|
|
// equivalent, then neither sequence is lexicographically less than
|
|
// the other.
|
|
rw_assert (res == result, 0, line,
|
|
"line %d: %s<%s, %s%{?}, %s%{;}> (\"%s\", \"%s\", ...) "
|
|
"== %b, got %b",
|
|
__LINE__, fname, it1name, it2name, 0 != ppred, funname,
|
|
src1, src2, res, result);
|
|
|
|
const std::size_t n_ops_lt = ppred ?
|
|
Predicate::funcalls_ : T::n_total_op_lt_ - last_n_op_lt;
|
|
|
|
// verify the complexity 25.3.8, p2
|
|
const std::size_t n_exp_ops = 2 * (nsrc1 < nsrc2 ? nsrc1 : nsrc2);
|
|
rw_assert (n_ops_lt <= n_exp_ops, 0, line,
|
|
"line %d: %s<%s, %s%{?}, %s%{;}> (\"%s\", \"%s\", ...) "
|
|
"complexity: got %zu, expected no more than %zu",
|
|
__LINE__, fname, it1name, it2name, 0 != ppred, funname,
|
|
src1, src2, n_ops_lt, n_exp_ops);
|
|
|
|
delete[] xsrc1;
|
|
delete[] xsrc2;
|
|
}
|
|
|
|
template
|
|
<class T, class InputIterator1, class InputIterator2, class Predicate>
|
|
void test_lex_compare (const InputIterator1 &it1,
|
|
const InputIterator2 &it2,
|
|
const T*,
|
|
const Predicate *ppred)
|
|
{
|
|
const char* const it1name = type_name (it1, (T*)0);
|
|
const char* const it2name = type_name (it2, (T*)0);
|
|
const char* const fname = "lexicographical_compare";
|
|
const char* const funname = Predicate::name();
|
|
|
|
rw_info (0, 0, 0,
|
|
"std::%s(%s, %2$s, %s, %3$s%{?}, %s%{;})",
|
|
fname, it1name, it2name, 0 != ppred, funname);
|
|
|
|
#define TEST(src1, src2, res) \
|
|
test_lex_compare (__LINE__, src1, src2, res, it1, it2, (T*)0, ppred)
|
|
|
|
TEST ("", "", false);
|
|
TEST ("a", "", false);
|
|
TEST ("", "a", true);
|
|
TEST ("a", "a", false);
|
|
|
|
TEST ("aa", "aa", false);
|
|
TEST ("aa", "ab", true);
|
|
TEST ("ba", "ab", false);
|
|
TEST ("ba", "ba", false);
|
|
TEST ("ba", "bc", true);
|
|
|
|
TEST ("a", "abc", true);
|
|
TEST ("a", "bcd", true);
|
|
TEST ("a", "baed", true);
|
|
|
|
TEST ("abcde", "abcdefghij", true);
|
|
TEST ("fghij", "fghijabcde", true);
|
|
TEST ("fghij", "abcdefghij", false);
|
|
TEST ("cabed", "abcdeabcde", false);
|
|
|
|
TEST ("abcdefghij", "abcdefghij", false);
|
|
TEST ("fghijfghij", "abcdefghij", false);
|
|
TEST ("fghijabcde", "abcdeabcde", false);
|
|
|
|
TEST ("abcdefghij", "bacdfeghji", true);
|
|
TEST ("bacdefghij", "bacdfeghji", true);
|
|
TEST ("bacdfeghij", "bacdfeghji", true);
|
|
TEST ("bacdfeghja", "bacdfeghji", true);
|
|
}
|
|
|
|
/**************************************************************************/
|
|
|
|
/* extern */ int rw_opt_no_predicate; // --no-predicate
|
|
/* 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 T, class InputIterator1, class Predicate>
|
|
void test_lex_compare (const InputIterator1 &it1,
|
|
const T*,
|
|
const Predicate *ppred)
|
|
{
|
|
static const InputIter<T> input_iter (0, 0, 0);
|
|
static const FwdIter<T> fwd_iter (0, 0, 0);
|
|
static const BidirIter<T> bidir_iter (0, 0, 0);
|
|
static const RandomAccessIter<T> rand_iter (0, 0, 0);
|
|
|
|
if (rw_opt_no_input_iter) {
|
|
rw_note (0, __FILE__, __LINE__, "InputIterator test disabled");
|
|
}
|
|
else {
|
|
test_lex_compare (it1, input_iter, (T*)0, ppred);
|
|
}
|
|
|
|
if (rw_opt_no_fwd_iter) {
|
|
rw_note (0, __FILE__, __LINE__, "ForwardIterator test disabled");
|
|
}
|
|
else {
|
|
test_lex_compare (it1, fwd_iter, (T*)0, ppred);
|
|
}
|
|
|
|
if (rw_opt_no_bidir_iter) {
|
|
rw_note (0, __FILE__, __LINE__, "BidirectionalIterator test disabled");
|
|
}
|
|
else {
|
|
test_lex_compare (it1, bidir_iter, (T*)0, ppred);
|
|
}
|
|
|
|
if (rw_opt_no_rnd_iter) {
|
|
rw_note (0, __FILE__, __LINE__, "RandomAccessIterator test disabled");
|
|
}
|
|
else {
|
|
test_lex_compare (it1, rand_iter, (T*)0, ppred);
|
|
}
|
|
}
|
|
|
|
template <class T, class Predicate>
|
|
void test_lex_compare (const T*,
|
|
const Predicate *ppred)
|
|
{
|
|
static const InputIter<T> input_iter (0, 0, 0);
|
|
static const FwdIter<T> fwd_iter (0, 0, 0);
|
|
static const BidirIter<T> bidir_iter (0, 0, 0);
|
|
static const RandomAccessIter<T> rand_iter (0, 0, 0);
|
|
|
|
rw_info (0, 0, 0,
|
|
"template <class %s, class %s%{?}, class %s%{;}> "
|
|
"bool std::lexicographical_compare (%1$s, %1$s, %2$s, "
|
|
"%2$s%{?}, %s%{;})",
|
|
"InputIterator1", "InputIterator2", ppred, "Compare",
|
|
0 != ppred, "Compare");
|
|
|
|
if (rw_opt_no_input_iter) {
|
|
rw_note (0, __FILE__, __LINE__, "InputIterator test disabled");
|
|
}
|
|
else {
|
|
test_lex_compare (input_iter, (T*)0, ppred);
|
|
}
|
|
|
|
if (rw_opt_no_fwd_iter) {
|
|
rw_note (0, __FILE__, __LINE__, "ForwardIterator test disabled");
|
|
}
|
|
else {
|
|
test_lex_compare (fwd_iter, (T*)0, ppred);
|
|
}
|
|
|
|
if (rw_opt_no_bidir_iter) {
|
|
rw_note (0, __FILE__, __LINE__, "BidirectionalIterator test disabled");
|
|
}
|
|
else {
|
|
test_lex_compare (bidir_iter, (T*)0, ppred);
|
|
}
|
|
|
|
if (rw_opt_no_rnd_iter) {
|
|
rw_note (0, __FILE__, __LINE__, "RandomAccessIterator test disabled");
|
|
}
|
|
else {
|
|
test_lex_compare (rand_iter, (T*)0, ppred);
|
|
}
|
|
}
|
|
|
|
/**************************************************************************/
|
|
|
|
static int run_test (int, char*[])
|
|
{
|
|
test_lex_compare ((UserClass*)0, (Less<UserClass>*)0);
|
|
|
|
if (rw_opt_no_predicate) {
|
|
rw_note (0, __FILE__, __LINE__,
|
|
"std::lexicographical_compare predicate test disabled");
|
|
}
|
|
else {
|
|
test_lex_compare ((UserClass*)0, (Less<UserClass>*)1);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**************************************************************************/
|
|
|
|
int main (int argc, char *argv[])
|
|
{
|
|
return rw_test (argc, argv, __FILE__,
|
|
"lib.lex.comparison",
|
|
0 /* no comment */,
|
|
run_test,
|
|
"|-no-predicate#"
|
|
"|-no-InputIterator# "
|
|
"|-no-ForwardIterator# "
|
|
"|-no-BidirectionalIterator# "
|
|
"|-no-RandomAccessIterator#",
|
|
&rw_opt_no_predicate,
|
|
&rw_opt_no_input_iter,
|
|
&rw_opt_no_fwd_iter,
|
|
&rw_opt_no_bidir_iter,
|
|
&rw_opt_no_rnd_iter);
|
|
}
|