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Jose Caban
2025-06-07 11:34:38 -04:00
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extern/stdcxx/4.2.1/tests/strings/21.string.operators.cpp vendored Normal file
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/***************************************************************************
*
* 21.string.operators.cpp - test exercising [lib.string.nonmembers]
* except lib.string::op+ and lib.string.io
*
* $Id: 21.string.operators.cpp 590052 2007-10-30 12:44:14Z 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 <string> // for string
#include <stdexcept> // for out_of_range, length_error
#include <cstddef> // for size_t
#include <21.strings.h> // for StringMembers
#include <driver.h> // for rw_test()
#include <rw_allocator.h> // for UserAlloc
#include <rw_char.h> // for rw_expand()
#include <rw_new.h> // for bad_alloc, replacement operator new
/**************************************************************************/
// for convenience and brevity
#define OpEqual(which) StringIds::op_equal_ ## which
#define OpNotEqual(which) StringIds::op_not_equal_ ## which
#define OpLess(which) StringIds::op_less_ ## which
#define OpLessEqual(which) StringIds::op_less_equal_ ## which
#define OpGreater(which) StringIds::op_greater_ ## which
#define OpGreaterEqual(which) StringIds::op_greater_equal_ ## which
static const char* const exceptions[] = {
"unknown exception", "out_of_range", "length_error",
"bad_alloc", "exception"
};
/**************************************************************************/
// exercises:
// operator == (const value_type*, const basic_string&)
// operator != (const value_type*, const basic_string&)
// operator < (const value_type*, const basic_string&)
// operator <= (const value_type*, const basic_string&)
// operator > (const value_type*, const basic_string&)
// operator >= (const value_type*, const basic_string&)
static const StringTestCase
cptr_cstr_test_cases [] = {
#undef TEST
#define TEST(str, arg, res) \
{ __LINE__, -1, -1, -1, -1, -1, \
str, sizeof str - 1, arg, sizeof arg - 1, \
0, (std::size_t) res, 0 \
}
// +----------------------------------------- first sequence
// | +----------------------- second sequence
// | | +---- expected result
// | | | -1 - first is less
// | | | 0 - equal
// | | | 1 - first is greater
// | | |
// | | |
// V V V
TEST ("ab", "c", -1),
TEST ("", "", 0),
TEST ("", "a", -1),
TEST ("a", "", 1),
TEST ("a", "a", 0),
TEST ("<U0>", "", 0),
TEST ("", "<U0>", -1),
TEST ("<U0>", "<U0>", -1),
TEST ("abcdefgjih", "abcdefgji", 1),
TEST ("abcdefgjih", "abcdefgjih", 0),
TEST ("abcdefgji", "abcdefgjih", -1),
TEST ("abcefgjih", "abcdefgjih", 1),
TEST ("abcdefgjih", "abcefgjih", -1),
TEST ("<U0>ab<U0>@2c", "<U0>ab<U0>@2c", -1),
TEST ("ab<U0>@2c<U0>", "ab", 0),
TEST ("e<U0>", "ab<U0>@2c<U0>", 1),
TEST ("x@2048", "x@2048", 0),
TEST ("x@2048", "x@2049", -1),
TEST ("x@2048", "x@2047", 1),
TEST ("a@2048", "b@2048", -1),
TEST ("b@2048", "a@2048", 1),
TEST ("a@2048<U0>", "a@2048", 0),
TEST ("a@2048", "a@2048<U0>", -1),
TEST ("x@128", "x@207", -1),
TEST ("x@334", "x@334", 0),
TEST ("x@873", "x@540", 1),
TEST ("x@1412", "x@2284", -1),
TEST ("x@3695", "x@3695", 0),
TEST ("x@4096", "x@3695", 1),
TEST (0, "abc", 0),
TEST (0, "<U0>ab<U0>", -1),
TEST (0, "x@2048", 0),
TEST ("last", "last", 0)
};
/**************************************************************************/
// exercises:
// operator == (const basic_string&, const basic_string&)
// operator != (const basic_string&, const basic_string&)
// operator < (const basic_string&, const basic_string&)
// operator <= (const basic_string&, const basic_string&)
// operator > (const basic_string&, const basic_string&)
// operator >= (const basic_string&, const basic_string&)
static const StringTestCase
cstr_cstr_test_cases [] = {
#undef TEST
#define TEST(str, arg, res) \
{ __LINE__, -1, -1, -1, -1, -1, \
str, sizeof str - 1, arg, sizeof arg - 1, \
0, (std::size_t) res, 0 \
}
// +----------------------------------------- first sequence
// | +----------------------- second sequence
// | | +---- expected result
// | | | -1 - first is less
// | | | 0 - equal
// | | | 1 - first is greater
// | | |
// | | |
// V V V
TEST ("ab", "c", -1),
TEST ("", "", 0),
TEST ("", "a", -1),
TEST ("a", "", 1),
TEST ("a", "a", 0),
TEST ("<U0>", "", 1),
TEST ("", "<U0>", -1),
TEST ("<U0>", "<U0>", 0),
TEST ("abcdefgjih", "abcdefgji", 1),
TEST ("abcdefgjih", "abcdefgjih", 0),
TEST ("abcdefgji", "abcdefgjih", -1),
TEST ("abcefgjih", "abcdefgjih", 1),
TEST ("abcdefgjih", "abcefgjih", -1),
TEST ("<U0>ab<U0>@2c", "<U0>ab<U0>@2c", 0),
TEST ("ab<U0>@2c<U0>", "<U0>ab<U0>@2c", 1),
TEST ("ab<U0>@2c<U0>", "ab<U0>@2c<U0>", 0),
TEST ("ab<U0>@2c<U0>", "ab", 1),
TEST ("ab", "ab<U0>@2c<U0>", -1),
TEST ("ab<U0>@3", "ab<U0>@2c<U0>", -1),
TEST ("ab<U0>@3", "ab<U0>@3", 0),
TEST ("e<U0>", "ab<U0>@2c<U0>", 1),
TEST ("ab<U0>@2c<U0>", "e<U0>", -1),
TEST ("x@2048", "x@2048", 0),
TEST ("x@2048", "x@2049", -1),
TEST ("x@2048", "x@2047", 1),
TEST ("a@2048", "b@2048", -1),
TEST ("b@2048", "a@2048", 1),
TEST ("<U0>a@2048", "a@2048<U0>", -1),
TEST ("a@2048<U0>", "<U0>a@2048", 1),
TEST ("a@2048<U0>", "a@2048", 1),
TEST ("a@2048", "a@2048<U0>", -1),
TEST ("a@2048<U0>", "a@2048<U0>", 0),
TEST ("x@128", "x@207", -1),
TEST ("x@334", "x@334", 0),
TEST ("x@873", "x@540", 1),
TEST ("x@1412", "x@2284", -1),
TEST ("x@3695", "x@3695", 0),
TEST ("x@4096", "x@3695", 1),
TEST (0, "abc", 0),
TEST (0, "<U0>ab<U0>", 0),
TEST (0, "x@2048", 0),
TEST ("abc", 0, 0),
TEST ("<U0>ab<U0>", 0, 0),
TEST ("x@2048", 0, 0),
TEST ("last", "last", 0)
};
/**************************************************************************/
// exercises:
// operator == (const basic_string&, const value_type*)
// operator != (const basic_string&, const value_type*)
// operator < (const basic_string&, const value_type*)
// operator <= (const basic_string&, const value_type*)
// operator > (const basic_string&, const value_type*)
// operator >= (const basic_string&, const value_type*)
static const StringTestCase
cstr_cptr_test_cases [] = {
#undef TEST
#define TEST(str, arg, res) \
{ __LINE__, -1, -1, -1, -1, -1, \
str, sizeof str - 1, arg, sizeof arg - 1, \
0, (std::size_t) res, 0 \
}
// +----------------------------------------- first sequence
// | +----------------------- second sequence
// | | +---- expected result
// | | | -1 - first is less
// | | | 0 - equal
// | | | 1 - first is greater
// | | |
// | | |
// V V V
TEST ("ab", "c", -1),
TEST ("", "", 0),
TEST ("", "a", -1),
TEST ("a", "", 1),
TEST ("a", "a", 0),
TEST ("<U0>", "", 1),
TEST ("", "<U0>", 0),
TEST ("<U0>", "<U0>", 1),
TEST ("abcdefgjih", "abcdefgji", 1),
TEST ("abcdefgjih", "abcdefgjih", 0),
TEST ("abcdefgji", "abcdefgjih", -1),
TEST ("abcefgjih", "abcdefgjih", 1),
TEST ("abcdefgjih", "abcefgjih", -1),
TEST ("<U0>ab<U0>@2c", "<U0>ab<U0>@2c", 1),
TEST ("ab", "ab<U0>@2c<U0>", 0),
TEST ("e<U0>", "ab<U0>@2c<U0>", 1),
TEST ("ab<U0>@2c<U0>", "e<U0>", -1),
TEST ("x@2048", "x@2048", 0),
TEST ("x@2048", "x@2049", -1),
TEST ("x@2048", "x@2047", 1),
TEST ("a@2048", "b@2048", -1),
TEST ("b@2048", "a@2048", 1),
TEST ("a@2048", "a@2048<U0>", 0),
TEST ("a@2048<U0>", "a@2048<U0>", 1),
TEST ("x@128", "x@207", -1),
TEST ("x@334", "x@334", 0),
TEST ("x@873", "x@540", 1),
TEST ("x@1412", "x@2284", -1),
TEST ("x@3695", "x@3695", 0),
TEST ("x@4096", "x@3695", 1),
TEST ("abc", 0, 0),
TEST ("<U0>ab<U0>", 0, 1),
TEST ("x@2048", 0, 0),
TEST ("last", "last", 0)
};
/**************************************************************************/
template <class charT, class Traits, class Allocator>
void test_operators (charT, Traits*, Allocator*,
const StringFunc &func,
const StringTestCase &tcase)
{
typedef std::basic_string <charT, Traits, Allocator> String;
typedef typename UserTraits<charT>::MemFun UTMemFun;
static const std::size_t BUFSIZE = 256;
static charT wstr_buf [BUFSIZE];
static charT warg_buf [BUFSIZE];
std::size_t str_len = sizeof wstr_buf / sizeof *wstr_buf;
std::size_t arg_len = sizeof warg_buf / sizeof *warg_buf;
charT* wstr = rw_expand (wstr_buf, tcase.str, tcase.str_len, &str_len);
charT* warg = rw_expand (warg_buf, tcase.arg, tcase.arg_len, &arg_len);
// construct the string object to be modified
// and the (possibly unused) argument string
/* const */ String s_str (wstr, str_len);
const String s_arg (warg, arg_len);
if (wstr != wstr_buf)
delete[] wstr;
if (warg != warg_buf)
delete[] warg;
wstr = 0;
warg = 0;
const charT* const arg1_ptr = tcase.str ? s_str.c_str () : s_arg.c_str ();
const String& arg1_str = tcase.str ? s_str : s_arg;
const charT* const arg2_ptr = tcase.arg ? s_arg.c_str () : s_str.c_str ();
const String& arg2_str = tcase.arg ? s_arg : s_str;
std::size_t total_length_calls = 0;
std::size_t n_length_calls = 0;
std::size_t* const rg_calls = rw_get_call_counters ((Traits*)0, (charT*)0);
if (rg_calls)
total_length_calls = rg_calls [UTMemFun::length];
rwt_free_store* const pst = rwt_get_free_store (0);
SharedAlloc* const pal = SharedAlloc::instance ();
// iterate for`throw_after' starting at the next call to operator new,
// forcing each call to throw an exception, until the function finally
// succeeds (i.e, no exception is thrown)
std::size_t throw_count;
for (throw_count = 0; ; ++throw_count) {
// (name of) expected and caught exception
const char* expected = 0;
const char* caught = 0;
#ifndef _RWSTD_NO_EXCEPTIONS
if (0 == tcase.bthrow) {
// by default excercise the exception safety of the function
// by iteratively inducing an exception at each call to operator
// new or Allocator::allocate() until the call succeeds
expected = exceptions [3]; // bad_alloc
*pst->throw_at_calls_ [0] = pst->new_calls_ [0] + throw_count + 1;
pal->throw_at_calls_ [pal->m_allocate] =
pal->throw_at_calls_ [pal->m_allocate] + throw_count + 1;
}
else {
// exceptions disabled for this test case
}
#else // if defined (_RWSTD_NO_EXCEPTIONS)
if (tcase.bthrow) {
if (wres != wres_buf)
delete[] wres;
return;
}
#endif // _RWSTD_NO_EXCEPTIONS
try {
bool res = false;
switch (func.which_) {
// exercise cptr_cstr cases
case OpEqual (cptr_cstr):
res = arg1_ptr == arg2_str;
if (rg_calls)
n_length_calls = rg_calls [UTMemFun::length];
break;
case OpNotEqual (cptr_cstr):
res = arg1_ptr != arg2_str;
if (rg_calls)
n_length_calls = rg_calls [UTMemFun::length];
break;
case OpLess (cptr_cstr):
res = arg1_ptr < arg2_str;
if (rg_calls)
n_length_calls = rg_calls [UTMemFun::length];
break;
case OpLessEqual (cptr_cstr):
res = arg1_ptr <= arg2_str;
if (rg_calls)
n_length_calls = rg_calls [UTMemFun::length];
break;
case OpGreater (cptr_cstr):
res = arg1_ptr > arg2_str;
if (rg_calls)
n_length_calls = rg_calls [UTMemFun::length];
break;
case OpGreaterEqual (cptr_cstr):
res = arg1_ptr >= arg2_str;
if (rg_calls)
n_length_calls = rg_calls [UTMemFun::length];
break;
// exercise cstr_cstr cases
case OpEqual (cstr_cstr):
res = arg1_str == arg2_str;
break;
case OpNotEqual (cstr_cstr):
res = arg1_str != arg2_str;
break;
case OpLess (cstr_cstr):
res = arg1_str < arg2_str;
break;
case OpLessEqual (cstr_cstr):
res = arg1_str <= arg2_str;
break;
case OpGreater (cstr_cstr):
res = arg1_str > arg2_str;
break;
case OpGreaterEqual (cstr_cstr):
res = arg1_str >= arg2_str;
break;
// exercise cstr_cptr cases
case OpEqual (cstr_cptr):
res = arg1_str == arg2_ptr;
if (rg_calls)
n_length_calls = rg_calls [UTMemFun::length];
break;
case OpNotEqual (cstr_cptr):
res = arg1_str != arg2_ptr;
if (rg_calls)
n_length_calls = rg_calls [UTMemFun::length];
break;
case OpLess (cstr_cptr):
res = arg1_str < arg2_ptr;
if (rg_calls)
n_length_calls = rg_calls [UTMemFun::length];
break;
case OpLessEqual (cstr_cptr):
res = arg1_str <= arg2_ptr;
if (rg_calls)
n_length_calls = rg_calls [UTMemFun::length];
break;
case OpGreater (cstr_cptr):
res = arg1_str > arg2_ptr;
if (rg_calls)
n_length_calls = rg_calls [UTMemFun::length];
break;
case OpGreaterEqual (cstr_cptr):
res = arg1_str >= arg2_ptr;
if (rg_calls)
n_length_calls = rg_calls [UTMemFun::length];
break;
default:
RW_ASSERT ("test logic error: unknown operator overload");
return;
}
// form the expected result
bool exp_res = false;
switch (StringIds::fid_mask & int (func.which_)) {
case StringIds::fid_op_equal:
exp_res = 0 == tcase.nres;
break;
case StringIds::fid_op_not_equal:
exp_res = 0 != tcase.nres;
break;
case StringIds::fid_op_less:
exp_res = NPOS == tcase.nres;
break;
case StringIds::fid_op_less_equal:
exp_res = 1 != tcase.nres;
break;
case StringIds::fid_op_greater:
exp_res = 1 == tcase.nres;
break;
case StringIds::fid_op_greater_equal:
exp_res = NPOS != tcase.nres;
break;
}
// verify the result
rw_assert (res == exp_res, 0, tcase.line,
"line %d. %{$FUNCALL} expected %b, got %b",
__LINE__, exp_res, res);
// verify that Traits::length was used
std::size_t exp_len_used =
(StringIds::arg_cstr << int (StringIds::fid_bits))
| (StringIds::arg_cstr << int (StringIds::arg_bits)
<< int (StringIds::fid_bits));
std::size_t verlen =
func.which_ & ~StringIds::fid_mask & ~exp_len_used;
if (verlen && rg_calls) {
rw_assert (n_length_calls - total_length_calls > 0,
0, tcase.line, "line %d. %{$FUNCALL} doesn't "
"use traits::length()", __LINE__);
}
}
#ifndef _RWSTD_NO_EXCEPTIONS
catch (const std::bad_alloc &ex) {
caught = exceptions [3];
rw_assert (0 == tcase.bthrow, 0, tcase.line,
"line %d. %{$FUNCALL} %{?}expected %s,%{:}"
"unexpectedly%{;} caught std::%s(%#s)",
__LINE__, 0 != expected, expected, caught, ex.what ());
}
catch (const std::exception &ex) {
caught = exceptions [4];
rw_assert (0, 0, tcase.line,
"line %d. %{$FUNCALL} %{?}expected %s,%{:}"
"unexpectedly%{;} caught std::%s(%#s)",
__LINE__, 0 != expected, expected, caught, ex.what ());
}
catch (...) {
caught = exceptions [0];
rw_assert (0, 0, tcase.line,
"line %d. %{$FUNCALL} %{?}expected %s,%{:}"
"unexpectedly%{;} caught %s",
__LINE__, 0 != expected, expected, caught);
}
#endif // _RWSTD_NO_EXCEPTIONS
if (caught) {
if (0 == tcase.bthrow) {
// allow this call to operator new to succeed and try
// to make the next one to fail during the next call
// to the same function again
continue;
}
}
else if (0 < tcase.bthrow) {
rw_assert (caught == expected, 0, tcase.line,
"line %d. %{$FUNCALL} %{?}expected %s, caught %s"
"%{:}unexpectedly caught %s%{;}",
__LINE__, 0 != expected, expected, caught, caught);
}
break;
}
const std::size_t expect_throws = 0;
rw_assert (expect_throws == throw_count, 0, tcase.line,
"line %d: %{$FUNCALL}: expected no %s exceptions, got %zu",
__LINE__, exceptions [3], throw_count);
// disable bad_alloc exceptions
*pst->throw_at_calls_ [0] = 0;
pal->throw_at_calls_ [pal->m_allocate] = 0;
}
/**************************************************************************/
DEFINE_STRING_TEST_DISPATCH (test_operators);
int main (int argc, char** argv)
{
static const StringTest
tests [] = {
#undef TEST
#define TEST(oper, tag) { \
StringIds::op_ ## oper ## _ ## tag, tag ## _test_cases, \
sizeof tag ## _test_cases / sizeof *tag ## _test_cases \
}
TEST (equal, cptr_cstr),
TEST (equal, cstr_cptr),
TEST (equal, cstr_cstr),
TEST (not_equal, cptr_cstr),
TEST (not_equal, cstr_cptr),
TEST (not_equal, cstr_cstr),
TEST (less, cptr_cstr),
TEST (less, cstr_cptr),
TEST (less, cstr_cstr),
TEST (less_equal, cptr_cstr),
TEST (less_equal, cstr_cptr),
TEST (less_equal, cstr_cstr),
TEST (greater, cptr_cstr),
TEST (greater, cstr_cptr),
TEST (greater, cstr_cstr),
TEST (greater_equal, cptr_cstr),
TEST (greater_equal, cstr_cptr),
TEST (greater_equal, cstr_cstr)
};
const std::size_t test_count = sizeof tests / sizeof *tests;
return rw_run_string_test (argc, argv, __FILE__,
"lib.string.nonmembers",
test_operators, tests, test_count);
}