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Jose Caban
340
extern/stdcxx/4.2.1/tests/strings/21.string.access.cpp
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340
extern/stdcxx/4.2.1/tests/strings/21.string.access.cpp
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/***************************************************************************
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*
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* 21.string.access.cpp - test exercising [lib.string.access]
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*
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* $Id: 21.string.access.cpp 648752 2008-04-16 17:01:56Z 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 <string> // for string
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#include <cstdlib> // for free(), size_t
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#include <stdexcept> // for out_of_range
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#include <21.strings.h> // for StringMembers
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#include <driver.h> // for rw_test()
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#include <rw_allocator.h> // for UserAlloc
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#include <rw_char.h> // for rw_expand()
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/**************************************************************************/
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// for convenience and brevity
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#define At(sig) StringIds::at_ ## sig
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#define OpIndex(sig) StringIds::op_index_ ## sig
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static const char* const exceptions[] = {
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"unknown exception", "out_of_range", "length_error",
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"bad_alloc", "exception"
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};
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/**************************************************************************/
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// used to exercise
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// operator[] (size_type)
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static const StringTestCase
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op_index_size_test_cases [] = {
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#undef TEST
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#define TEST(str, off, res) { \
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__LINE__, off, -1, -1, -1, -1, \
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str, sizeof str - 1, \
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0, 0, 0, res, 0 \
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}
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// +--------------------------------------- controlled sequence
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// | +----------------- index
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// | | +------------- expected result
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// | | |
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// V V V
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TEST ("a", 0, 'a' ),
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TEST ("<U0>", 0, '\0'),
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TEST ("abc", 0, 'a' ),
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TEST ("abc", 1, 'b' ),
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TEST ("abc", 2, 'c' ),
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TEST ("<U0>ab<U0><U0>c", 0, '\0'),
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TEST ("a<U0>b<U0><U0>c", 0, 'a' ),
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TEST ("a<U0>b<U0><U0>c", 1, '\0'),
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TEST ("a<U0>b<U0><U0>c", 2, 'b' ),
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TEST ("a<U0>b<U0><U0>c", 3, '\0'),
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TEST ("a<U0>b<U0><U0>c", 4, '\0'),
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TEST ("a<U0>b<U0><U0>c", 5, 'c' ),
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TEST ("a<U0>bc<U0><U0>", 5, '\0'),
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TEST ("x@4096", 0, 'x' ),
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TEST ("x@4096", 2048, 'x' ),
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TEST ("x@4096", 4095, 'x' ),
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TEST ("last", 3, 't' )
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};
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/**************************************************************************/
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// used to exercise
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// operator[] (size_type) const
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static const StringTestCase
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op_index_const_size_test_cases [] = {
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#undef TEST
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#define TEST(str, off, res) { \
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__LINE__, off, -1, -1, -1, -1, \
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str, sizeof str - 1, \
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0, 0, 0, res, 0 \
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}
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// +--------------------------------------- controlled sequence
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// | +----------------- index
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// | | +------------- expected result
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// | | |
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// V V V
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TEST ("a", 0, 'a' ),
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TEST ("a", 1, NPOS),
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TEST ("", 0, NPOS),
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TEST ("<U0>", 0, '\0'),
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TEST ("<U0>", 1, NPOS),
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TEST ("abc", 0, 'a' ),
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TEST ("abc", 1, 'b' ),
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TEST ("abc", 2, 'c' ),
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TEST ("abc", 3, NPOS),
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TEST ("<U0>ab<U0><U0>c", 0, '\0'),
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TEST ("a<U0>b<U0><U0>c", 0, 'a' ),
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TEST ("a<U0>b<U0><U0>c", 1, '\0'),
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TEST ("a<U0>b<U0><U0>c", 2, 'b' ),
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TEST ("a<U0>b<U0><U0>c", 3, '\0'),
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TEST ("a<U0>b<U0><U0>c", 4, '\0'),
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TEST ("a<U0>b<U0><U0>c", 5, 'c' ),
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TEST ("a<U0>b<U0><U0>c", 6, NPOS),
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TEST ("a<U0>bc<U0><U0>", 5, '\0'),
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TEST ("x@4096", 0, 'x' ),
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TEST ("x@4096", 2048, 'x' ),
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TEST ("x@4096", 4095, 'x' ),
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TEST ("x@4096", 4096, NPOS),
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TEST ("last", 3, 't' )
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};
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/**************************************************************************/
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// used to exercise
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// at (size_type)
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// at (size_type) const
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static const StringTestCase
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at_size_test_cases [] = {
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#define at_const_size_test_cases at_size_test_cases
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#undef TEST
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#define TEST(str, off, res, bthrow) { \
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__LINE__, off, -1, -1, -1, -1, \
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str, sizeof str - 1, \
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0, 0, 0, res, bthrow \
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}
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// +--------------------------------------- controlled sequence
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// | +----------------- index
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// | | +-------------- expected result
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// | | | +----- exception info
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// | | | | 0 - no exception
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// | | | | 1 - out_of_range
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// | | | |
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// V V V V
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TEST ("a", 0, 'a', 0),
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TEST ("a", 1, NPOS, 1),
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TEST ("", 0, NPOS, 1),
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TEST ("<U0>", 0, '\0', 0),
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TEST ("<U0>", 1, NPOS, 1),
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TEST ("abc", 0, 'a', 0),
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TEST ("abc", 1, 'b', 0),
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TEST ("abc", 2, 'c', 0),
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TEST ("abc", 3, NPOS, 1),
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TEST ("<U0>ab<U0><U0>c", 0, '\0', 0),
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TEST ("a<U0>b<U0><U0>c", 0, 'a', 0),
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TEST ("a<U0>b<U0><U0>c", 1, '\0', 0),
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TEST ("a<U0>b<U0><U0>c", 2, 'b', 0),
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TEST ("a<U0>b<U0><U0>c", 3, '\0', 0),
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TEST ("a<U0>b<U0><U0>c", 4, '\0', 0),
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TEST ("a<U0>b<U0><U0>c", 5, 'c', 0),
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TEST ("a<U0>b<U0><U0>c", 6, NPOS, 1),
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TEST ("a<U0>bc<U0><U0>", 5, '\0', 0),
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TEST ("x@4096", 0, 'x', 0),
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TEST ("x@4096", 2048, 'x', 0),
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TEST ("x@4096", 4095, 'x', 0),
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TEST ("x@4096", 4096, NPOS, 1),
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TEST ("last", 3, 't', 0)
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};
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/**************************************************************************/
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template <class charT, class Traits, class Allocator>
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void test_access (charT, Traits*, Allocator*,
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const StringFunc &func,
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const StringTestCase &tcase)
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{
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typedef std::basic_string <charT, Traits, Allocator> String;
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typedef typename String::size_type SizeT;
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static const std::size_t BUFSIZE = 256;
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static charT wstr_buf [BUFSIZE];
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std::size_t str_len = sizeof wstr_buf / sizeof *wstr_buf;
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charT* wstr = rw_expand (wstr_buf, tcase.str, tcase.str_len, &str_len);
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// construct the string object
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/* const */ String str (wstr, str_len);
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const String const_str = str;
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if (wstr != wstr_buf)
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delete[] wstr;
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wstr = 0;
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// save the state of the string object before the call
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// to detect wxception safety violations (changes to
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// the state of the object after an exception)
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const StringState str_state (rw_get_string_state (str));
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#ifndef _RWSTD_NO_EXCEPTIONS
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// is some exception expected ?
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const char* expected = 1 == tcase.bthrow ? exceptions[1] : 0;
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const char* caught = 0;
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#endif // _RWSTD_NO_EXCEPTIONS
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try {
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const charT *pres = 0;
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switch (func.which_) {
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case OpIndex (size):
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pres = &str [SizeT (tcase.off)];
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break;
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case OpIndex (const_size):
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pres = &const_str [SizeT (tcase.off)];
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break;
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case At (size):
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pres = &str.at (SizeT (tcase.off));
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break;
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case At (const_size):
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pres = &const_str.at (SizeT (tcase.off));
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break;
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default:
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RW_ASSERT (!"test logic error: unknown access overload");
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return;
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}
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const char exp_res [2] = {
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NPOS != tcase.nres ? char (tcase.nres) : char (),
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char ()
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};
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const bool success = 1 == rw_match (exp_res, pres, 1);
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rw_assert (success, 0, tcase.line,
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"line %d. %{$FUNCALL} == %{#c}, got %{#c}",
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__LINE__, tcase.nres, *pres);
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}
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#ifndef _RWSTD_NO_EXCEPTIONS
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catch (const std::out_of_range &ex) {
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caught = exceptions [1];
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rw_assert (caught == expected, 0, tcase.line,
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"line %d. %{$FUNCALL} %{?}expected %s,%{:}"
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"unexpectedly%{;} caught std::%s(%#s)",
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__LINE__, 0 != expected, expected, caught, ex.what ());
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}
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catch (const std::exception &ex) {
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caught = exceptions [4];
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rw_assert (0, 0, tcase.line,
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"line %d. %{$FUNCALL} %{?}expected %s,%{:}"
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"unexpectedly%{;} caught std::%s(%#s)",
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__LINE__, 0 != expected, expected, caught, ex.what ());
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}
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catch (...) {
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caught = exceptions [0];
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rw_assert (0, 0, tcase.line,
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"line %d. %{$FUNCALL} %{?}expected %s,%{:}"
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"unexpectedly%{;} caught %s",
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__LINE__, 0 != expected, expected, caught);
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}
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#endif // _RWSTD_NO_EXCEPTIONS
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if (caught) {
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// verify that an exception thrown during allocation
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// didn't cause a change in the state of the object
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str_state.assert_equal (rw_get_string_state (str),
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__LINE__, tcase.line, caught);
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}
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}
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/**************************************************************************/
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DEFINE_STRING_TEST_DISPATCH (test_access);
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int main (int argc, char** argv)
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{
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static const StringTest
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tests [] = {
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#undef TEST
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#define TEST(sig) { \
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StringIds::sig, sig ## _test_cases, \
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sizeof sig ## _test_cases / sizeof *sig ## _test_cases \
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}
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TEST (op_index_size),
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TEST (op_index_const_size),
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TEST (at_size),
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TEST (at_const_size)
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};
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const std::size_t test_count = sizeof tests / sizeof *tests;
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return rw_run_string_test (argc, argv, __FILE__,
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"lib.string.access",
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test_access, tests, test_count);
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}
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