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Jose Caban
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extern/stdcxx/4.2.1/tests/algorithms/25.find.first.cpp
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367
extern/stdcxx/4.2.1/tests/algorithms/25.find.first.cpp
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/***************************************************************************
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*
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* find.first.cpp - test exercising 25.1.4 [lib.alg.find.first.of]
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*
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* $Id: 25.find.first.cpp 510071 2007-02-21 15:58:53Z faridz $
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*
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***************************************************************************
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*
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* Copyright 1994-2006 Rogue Wave Software.
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*
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**************************************************************************/
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#include <algorithm> // for find_first_of
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#include <cstring> // for size_t, strlen()
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#include <alg_test.h>
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#include <rw_value.h> // for UserClass
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#include <driver.h> // for rw_test
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/**************************************************************************/
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_RWSTD_NAMESPACE (std) {
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#ifndef _RWSTD_NO_EXPLICIT_INSTANTIATION
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template
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FwdIter<eq_comp<base<> > >
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find_first_of (FwdIter<eq_comp<base<> > >, FwdIter<eq_comp<base<> > >,
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FwdIter<eq_comp<base<> > >, FwdIter<eq_comp<base<> > >);
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template
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FwdIter<eq_comp<base<> > >
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find_first_of (FwdIter<eq_comp<base<> > >, FwdIter<eq_comp<base<> > >,
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FwdIter<eq_comp<base<> > >, FwdIter<eq_comp<base<> > >,
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binary_predicate<eq_comp<base<> > >);
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#endif // _RWSTD_NO_EXPLICIT_INSTANTIATION
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} // namespace std
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/**************************************************************************/
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template <class T, class U>
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struct EqualityPredicate
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{
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static std::size_t funcalls_;
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// dummy arguments provided to prevent the class
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// from being default constructible
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EqualityPredicate (T* /* dummy */, U* /* dummy */) {
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funcalls_ = 0;
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}
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// return a type other than bool but one that is implicitly
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// convertible to bool to detect incorrect assumptions
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class ConvertibleToBool {
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bool result_;
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public:
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ConvertibleToBool (bool res): result_ (res) { /* empty */ }
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operator bool() const { return result_; }
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};
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ConvertibleToBool operator() (const T &x, const U &y) /* non-const */ {
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++funcalls_;
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return x == y;
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}
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};
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template <class T, class U>
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std::size_t EqualityPredicate<T, U>::funcalls_;
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/**************************************************************************/
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// used to initialize an array of objects of type T
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static const char *tinit_begin;
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int tinit ()
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{
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typedef unsigned char UChar;
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return UChar (*tinit_begin++);
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}
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// exercises std::find_end()
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template <class ForwardIterator1, class ForwardIterator2,
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class Predicate, class T>
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void do_test (int line, // line number of test case
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const char *src, // source sequence
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const char *fseq, // sequence to be found
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std::size_t resoff, // offset of result
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ForwardIterator1 &dummy_iter1,
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ForwardIterator2 &dummy_iter2,
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const T*,
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const Predicate *pred)
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{
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static const char* const it1name = type_name (dummy_iter1, (T*)0);
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static const char* const it2name = type_name (dummy_iter2, (T*)0);
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static const char* const pname = pred ? "Predicate" : "operator==";
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const std::size_t nsrc = std::strlen (src);
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const std::size_t nfseq = std::strlen (fseq);
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if (std::size_t (-1) == resoff)
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resoff = nsrc;
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// have the T default ctor initialize objects from `src'
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tinit_begin = src;
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T::gen_ = tinit;
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T* const tsrc = new T [nsrc];
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T* const src_begin = tsrc;
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T* const src_end = tsrc + nsrc;
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// have the T default ctor initialize sequence to be found
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tinit_begin = fseq;
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T* const tfseq = new T [nfseq];
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T* const fseq_begin = tfseq;
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T* const fseq_end = tfseq + nfseq;
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// create iterators
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const ForwardIterator1 first1 =
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make_iter (src_begin, src_begin, src_end, dummy_iter1);
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const ForwardIterator1 last1 =
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make_iter (src_end, src_begin, src_end, dummy_iter1);
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const ForwardIterator2 first2 =
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make_iter (fseq_begin, fseq_begin, fseq_end, dummy_iter2);
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const ForwardIterator2 last2 =
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make_iter (fseq_end, fseq_begin, fseq_end, dummy_iter2);
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// compute the number of invocations of the operator==()
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std::size_t last_n_op_assign = T::n_total_op_assign_;
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const Predicate fun((T*)0, (T*)0); // dummy arguments
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const ForwardIterator1 res = pred ?
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std::find_first_of (first1, last1, first2, last2, fun)
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: std::find_first_of (first1, last1, first2, last2);
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// silence a bogus EDG eccp remark #550-D:
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// variable "res" was set but never used
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_RWSTD_UNUSED (res);
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if (!rw_assert (res.cur_ == first1.cur_ + resoff, 0, line,
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"line %d: find_first_of<%s, %s>(it = \"%s\", \"%s\")"
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" == (it + %zu), got (it + %td)",
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__LINE__, it1name, it2name, src, fseq,
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resoff, res.cur_ - first1.cur_)) {
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delete[] tsrc;
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delete[] tfseq;
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return;
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}
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const std::size_t npreds = pred ?
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fun.funcalls_ : T::n_total_op_assign_ - last_n_op_assign;
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rw_assert (npreds <= nfseq * nsrc, 0, line,
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"line %d: find_first_of<%s, %s>(it = \"%s\", \"%s\")"
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"%s invoked %zu times, expected no more than %td",
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__LINE__, it1name, it2name, src, fseq, pname,
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npreds, nfseq * nsrc);
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delete[] tsrc;
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delete[] tfseq;
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}
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/**************************************************************************/
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template <class ForwardIterator1, class ForwardIterator2,
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class Predicate, class T>
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void run_tests (const ForwardIterator1 &dummy_iter1,
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const ForwardIterator2 &dummy_iter2,
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const T*,
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const Predicate *pred)
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{
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static const char* const it1name = type_name (dummy_iter1, (T*)0);
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static const char* const it2name = type_name (dummy_iter2, (T*)0);
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rw_info (0, 0, 0,
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"%s std::find_first_of (%1$s, %1$s, %s, %2$s%{?}, %s%{;})",
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it1name, it2name, 0 != pred, "Predicate");
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#define TEST(src, fnd, off_res) \
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do_test (__LINE__, src, fnd, std::size_t (off_res), \
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dummy_iter1, dummy_iter2, (UserClass*)0, pred)
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// +------------------ subject sequence
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// | +--- sequence to be found
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// | |
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// | | +-- offset of returned iterator,
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// | | | -1 denotes the end of sequence
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// v v v
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TEST ("abcdefghijk", "a", 0);
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TEST ("abcdefghijk", "b", 1);
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TEST ("abcdefghijk", "c", 2);
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TEST ("abcdefghijk", "d", 3);
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TEST ("abcdefghijk", "e", 4);
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TEST ("abcdefghijk", "f", 5);
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TEST ("abcdefghijk", "g", 6);
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TEST ("abcdefghijk", "h", 7);
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TEST ("abcdefghijk", "i", 8);
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TEST ("abcdefghijk", "j", 9);
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TEST ("abcdefghijk", "k", 10);
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TEST ("aabcdefghijk", "a", 0);
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TEST ("abbcdefghijk", "b", 1);
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TEST ("abccdefghijk", "c", 2);
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TEST ("abcddefghijk", "d", 3);
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TEST ("abcdeefghijk", "e", 4);
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TEST ("abcdeffghijk", "f", 5);
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TEST ("abcdefgghijk", "g", 6);
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TEST ("abcdefghhijk", "h", 7);
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TEST ("abcdefghijjk", "i", 8);
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TEST ("abcdefghijjk", "j", 9);
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TEST ("abcdefghijkk", "k", 10);
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TEST ("bbcdefghijk", "ab", 0);
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TEST ("accdefghijk", "bc", 1);
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TEST ("abddefghijk", "cd", 2);
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TEST ("abceefghijk", "de", 3);
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TEST ("abcdffghijk", "ef", 4);
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TEST ("abcdegghijk", "fg", 5);
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TEST ("abcdefhhijk", "gh", 6);
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TEST ("abcdefgiijk", "hi", 7);
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TEST ("abcdefghjjk", "ij", 8);
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TEST ("abcdefghikk", "jk", 9);
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TEST ("bbcdefghijk", "a", -1);
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TEST ("accdefghijk", "b", -1);
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TEST ("abddefghijk", "c", -1);
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TEST ("abceefghijk", "d", -1);
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TEST ("abcdffghijk", "e", -1);
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TEST ("abcdegghijk", "f", -1);
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TEST ("abcdefhhijk", "g", -1);
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TEST ("abcdefgiijk", "h", -1);
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TEST ("abcdefghjjk", "i", -1);
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TEST ("abcdefghikk", "j", -1);
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TEST ("", "a", -1);
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TEST ("abcdefghijk", "", -1);
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}
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/**************************************************************************/
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/* extern */ int rw_opt_no_fwd_iter; // --no-ForwardIterator
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/* extern */ int rw_opt_no_bidir_iter; // --no-BidirectionalIterator
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/* extern */ int rw_opt_no_rnd_iter; // --no-RandomAccessIterator
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/* extern */ int rw_opt_no_predicate; // --no-Predicate
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template <class ForwardIterator, class Predicate, class T>
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void run_test (const ForwardIterator &dummy, T*, Predicate* pred)
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{
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if (rw_opt_no_fwd_iter) {
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rw_note (0, __FILE__, __LINE__, "ForwardIterator test disabled");
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}
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else {
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run_tests (dummy, FwdIter<T>(), (T*)0, pred);
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}
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if (rw_opt_no_bidir_iter) {
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rw_note (0, __FILE__, __LINE__, "BidirectionalIterator test disabled");
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}
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else {
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run_tests (dummy, BidirIter<T>(), (T*)0, pred);
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}
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if (rw_opt_no_rnd_iter) {
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rw_note (0, __FILE__, __LINE__, "RandomAccessIterator test disabled");
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}
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else {
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run_tests (dummy, RandomAccessIter<T>(), (T*)0, pred);
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}
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}
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/**************************************************************************/
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static void
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run_test (bool test_predicate)
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{
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rw_info (0, 0, 0,
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"template <class %s, class %s> "
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"%1$s std::find_first_of (%1$s, %1$s, %2$s, %2$s%{?}, %s%{;})",
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"ForwardIterator1", "ForwardIterator2",
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0 != test_predicate, "Predicate");
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typedef EqualityPredicate<UserClass, UserClass> EqPred;
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const EqPred* const pred = test_predicate ? (EqPred*)1 : (EqPred*)0;
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if (rw_opt_no_fwd_iter) {
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rw_note (0, __FILE__, __LINE__, "ForwardIterator test disabled");
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}
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else {
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run_test (FwdIter<UserClass>(), (UserClass*)0, pred);
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}
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if (rw_opt_no_bidir_iter) {
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rw_note (0, __FILE__, __LINE__, "BidirectionalIterator test disabled");
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}
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else {
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run_test (BidirIter<UserClass>(), (UserClass*)0, pred);
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}
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if (rw_opt_no_rnd_iter) {
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rw_note (0, __FILE__, __LINE__, "RandomAccessIterator test disabled");
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}
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else {
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run_test (RandomAccessIter<UserClass>(), (UserClass*)0, pred);
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}
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}
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/**************************************************************************/
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static int
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run_test (int, char*[])
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{
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run_test (false);
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if (rw_opt_no_predicate) {
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rw_note (0, __FILE__, __LINE__, "Predicate test disabled");
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}
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else {
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run_test (true);
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}
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return 0;
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}
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/**************************************************************************/
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int main (int argc, char *argv[])
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{
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return rw_test (argc, argv, __FILE__,
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"lib.alg.find.first.of",
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0 /* no comment */, run_test,
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"|-no-ForwardIterator#"
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"|-no-BidirectionalIterator#"
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"|-no-RandomAccessIterator#"
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"|-no-Predicate#",
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&rw_opt_no_fwd_iter,
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&rw_opt_no_bidir_iter,
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&rw_opt_no_rnd_iter,
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&rw_opt_no_predicate);
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}
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