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[boost][range] - Improved handling of temporary ranges in range algorithms.

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[SVN r63904]
This commit is contained in:
Neil Groves
2010-07-12 00:14:07 +00:00
parent 74a01a4487
commit 5bb66037d3
3 changed files with 189 additions and 8 deletions
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58
test/string.cpp
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@ -17,6 +17,7 @@
# pragma warn -8057 // unused argument argc/argv in Boost.Test
#endif
#include <boost/array.hpp>
#include <boost/range/as_array.hpp>
#include <boost/range/as_literal.hpp>
#include <boost/range/functions.hpp>
@ -29,6 +30,34 @@
#include <fstream>
#include <algorithm>
namespace
{
template< class CharT, std::size_t Length >
class test_string
{
public:
typedef CharT value_type;
typedef value_type* pointer;
typedef const value_type* const_pointer;
typedef std::size_t size_type;
typedef value_type array_t[Length];
typedef const value_type const_array_t[Length];
explicit test_string(const CharT literal_sz[])
{
std::copy(literal_sz, literal_sz + Length, m_buffer.data());
m_buffer[Length] = value_type();
}
const_pointer const_sz() const { return m_buffer.data(); }
pointer mutable_sz() { return m_buffer.data(); }
private:
typedef boost::array<value_type, Length + 1> buffer_t;
buffer_t m_buffer;
};
}
template< class T >
inline BOOST_DEDUCED_TYPENAME boost::range_iterator<T>::type
str_begin( T& r )
@ -105,11 +134,15 @@ void check_char()
{
typedef char* char_iterator_t;
typedef char char_array_t[10];
const char* char_s = "a string";
char my_string[] = "another string";
test_string<char, 8> a_string("a string");
test_string<char, 14> another_string("another string");
const char* char_s = a_string.const_sz();
char my_string[] = "another_string";
const char my_const_string[] = "another string";
const unsigned my_string_length = 14;
char* char_s2 = "a string";
const unsigned my_string_length = 14;
char* char_s2 = a_string.mutable_sz();
BOOST_STATIC_ASSERT(( is_same< range_value<char_iterator_t>::type,
detail::iterator_traits<char_iterator_t>::value_type>::value ));
@ -181,10 +214,14 @@ void check_string()
check_char();
#ifndef BOOST_NO_STD_WSTRING
typedef wchar_t* wchar_iterator_t;
const wchar_t* char_ws = L"a wide string";
typedef wchar_t* wchar_iterator_t;
test_string<wchar_t, 13> a_wide_string(L"a wide string");
test_string<wchar_t, 19> another_wide_string(L"another wide string");
const wchar_t* char_ws = a_wide_string.const_sz();
wchar_t my_wstring[] = L"another wide string";
wchar_t* char_ws2 = L"a wide string";
wchar_t* char_ws2 = a_wide_string.mutable_sz();
BOOST_STATIC_ASSERT(( is_same< range_value<wchar_iterator_t>::type,
detail::iterator_traits<wchar_iterator_t>::value_type>::value ));
@ -203,12 +240,17 @@ void check_string()
BOOST_CHECK_EQUAL( sz, std::char_traits<wchar_t>::length( char_ws ) );
wchar_t to_search = L'n';
BOOST_CHECK( find( char_ws, to_search ) != str_end(char_ws) );
BOOST_CHECK( find( char_ws, to_search ) != str_end(char_ws) );
BOOST_CHECK( find( char_ws2, to_search ) != str_end(char_ws2) );
#if BOOST_WORKAROUND(_MSC_VER, BOOST_TESTED_AT(1300))
BOOST_CHECK( find( my_wstring, to_search ) != str_end(my_wstring) );
#else
boost::ignore_unused_variable_warning( my_wstring );
#endif
#endif