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Support for char16_t, char32_t, u16string, u32string

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This commit is contained in:
Daniel James
2017-05-31 22:19:54 +01:00
parent 33eb0c50dc
commit 767673645e
4 changed files with 156 additions and 1 deletions
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4
hash/doc/changes.qbk
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@ -191,4 +191,8 @@
* Fix for recent versions of Visual C++ which have removed `std::unary_function`
and `std::binary_function` ([ticket 12353]).
[h2 Boost 1.65.0]
* Support for `char16_t`, `char32_t`, `u16string`, `u32string`
[endsect]

85
hash/doc/ref.xml
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@ -162,6 +162,42 @@ file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
</method>
</struct-specialization>
<struct-specialization name="hash">
<template></template>
<specialization>
<template-arg>char16_t</template-arg>
</specialization>
<method name="operator()" cv="const">
<type>std::size_t</type>
<parameter name="val">
<paramtype>char16_t</paramtype>
</parameter>
<returns>
<para>Unspecified in TR1, except that equal arguments yield the same result.</para>
<para><functionname>hash_value</functionname>(val) in Boost.</para>
</returns>
<throws><para>Doesn't throw</para></throws>
</method>
</struct-specialization>
<struct-specialization name="hash">
<template></template>
<specialization>
<template-arg>char32_t</template-arg>
</specialization>
<method name="operator()" cv="const">
<type>std::size_t</type>
<parameter name="val">
<paramtype>char32_t</paramtype>
</parameter>
<returns>
<para>Unspecified in TR1, except that equal arguments yield the same result.</para>
<para><functionname>hash_value</functionname>(val) in Boost.</para>
</returns>
<throws><para>Doesn't throw</para></throws>
</method>
</struct-specialization>
<struct-specialization name="hash">
<template></template>
<specialization>
@ -396,6 +432,42 @@ file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
</method>
</struct-specialization>
<struct-specialization name="hash">
<template></template>
<specialization>
<template-arg>std::u16string</template-arg>
</specialization>
<method name="operator()" cv="const">
<type>std::size_t</type>
<parameter name="val">
<paramtype>std::u16string const&amp;</paramtype>
</parameter>
<returns>
<para>Unspecified in TR1, except that equal arguments yield the same result.</para>
<para><functionname>hash_value</functionname>(val) in Boost.</para>
</returns>
<throws><para>Doesn't throw</para></throws>
</method>
</struct-specialization>
<struct-specialization name="hash">
<template></template>
<specialization>
<template-arg>std::u32string</template-arg>
</specialization>
<method name="operator()" cv="const">
<type>std::size_t</type>
<parameter name="val">
<paramtype>std::u32string const&amp;</paramtype>
</parameter>
<returns>
<para>Unspecified in TR1, except that equal arguments yield the same result.</para>
<para><functionname>hash_value</functionname>(val) in Boost.</para>
</returns>
<throws><para>Doesn't throw</para></throws>
</method>
</struct-specialization>
<struct-specialization name="hash">
<template>
<template-type-parameter name="T"/>
@ -597,6 +669,16 @@ for(; first != last; ++first)
<parameter name="val"><paramtype>wchar_t</paramtype></parameter>
</signature>
<signature>
<type>std::size_t</type>
<parameter name="val"><paramtype>char16_t</paramtype></parameter>
</signature>
<signature>
<type>std::size_t</type>
<parameter name="val"><paramtype>char32_t</paramtype></parameter>
</signature>
<signature>
<type>std::size_t</type>
<parameter name="val"><paramtype>short</paramtype></parameter>
@ -833,7 +915,8 @@ for(; first != last; ++first)
<tbody>
<row>
<entry><code>bool</code>,
<code>char</code>, <code>signed char</code>, <code>unsigned char</code>, <code>wchar_t</code>,
<code>char</code>, <code>signed char</code>, <code>unsigned char</code>,
<code>wchar_t</code>, <code>char16_t</code>, <code>char32_t</code>,
<code>short</code>, <code>unsigned short</code>,
<code>int</code>, <code>unsigned int</code>, <code>long</code>, <code>unsigned long</code>
</entry>

56
hash/test/hash_string_test.cpp
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@ -80,12 +80,68 @@ void wstring_tests()
}
#endif
#if !defined(BOOST_NO_CXX11_CHAR16_T)
void u16string_tests()
{
compile_time_tests((std::u16string*) 0);
BOOST_HASH_TEST_NAMESPACE::hash<std::u16string> x1;
BOOST_HASH_TEST_NAMESPACE::hash<std::u16string> x2;
BOOST_TEST(x1(u"Hello") == x2(std::u16string(u"Hel") + u"lo"));
BOOST_TEST(x1(u"") == x2(std::u16string()));
#if defined(BOOST_HASH_TEST_EXTENSIONS)
std::u16string value1;
std::u16string value2(u"Hello");
BOOST_TEST(x1(value1) == BOOST_HASH_TEST_NAMESPACE::hash_value(value1));
BOOST_TEST(x1(value2) == BOOST_HASH_TEST_NAMESPACE::hash_value(value2));
BOOST_TEST(BOOST_HASH_TEST_NAMESPACE::hash_value(value1) ==
BOOST_HASH_TEST_NAMESPACE::hash_range(value1.begin(), value1.end()));
BOOST_TEST(BOOST_HASH_TEST_NAMESPACE::hash_value(value2) ==
BOOST_HASH_TEST_NAMESPACE::hash_range(value2.begin(), value2.end()));
#endif
}
#endif
#if !defined(BOOST_NO_CXX11_CHAR32_T)
void u32string_tests()
{
compile_time_tests((std::u32string*) 0);
BOOST_HASH_TEST_NAMESPACE::hash<std::u32string> x1;
BOOST_HASH_TEST_NAMESPACE::hash<std::u32string> x2;
BOOST_TEST(x1(U"Hello") == x2(std::u32string(U"Hel") + U"lo"));
BOOST_TEST(x1(U"") == x2(std::u32string()));
#if defined(BOOST_HASH_TEST_EXTENSIONS)
std::u32string value1;
std::u32string value2(U"Hello");
BOOST_TEST(x1(value1) == BOOST_HASH_TEST_NAMESPACE::hash_value(value1));
BOOST_TEST(x1(value2) == BOOST_HASH_TEST_NAMESPACE::hash_value(value2));
BOOST_TEST(BOOST_HASH_TEST_NAMESPACE::hash_value(value1) ==
BOOST_HASH_TEST_NAMESPACE::hash_range(value1.begin(), value1.end()));
BOOST_TEST(BOOST_HASH_TEST_NAMESPACE::hash_value(value2) ==
BOOST_HASH_TEST_NAMESPACE::hash_range(value2.begin(), value2.end()));
#endif
}
#endif
int main()
{
string_tests();
string0_tests();
#if !defined(BOOST_NO_STD_WSTRING) && !defined(BOOST_NO_INTRINSIC_WCHAR_T)
wstring_tests();
#endif
#if !defined(BOOST_NO_CXX11_CHAR16_T)
u16string_tests();
#endif
#if !defined(BOOST_NO_CXX11_CHAR32_T)
u32string_tests();
#endif
return boost::report_errors();
}

12
include/boost/functional/hash/hash.hpp
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@ -465,6 +465,12 @@ namespace boost
BOOST_HASH_SPECIALIZE(unsigned char)
#if !defined(BOOST_NO_INTRINSIC_WCHAR_T)
BOOST_HASH_SPECIALIZE(wchar_t)
#endif
#if !defined(BOOST_NO_CXX11_CHAR16_T)
BOOST_HASH_SPECIALIZE(char16_t)
#endif
#if !defined(BOOST_NO_CXX11_CHAR32_T)
BOOST_HASH_SPECIALIZE(char32_t)
#endif
BOOST_HASH_SPECIALIZE(short)
BOOST_HASH_SPECIALIZE(unsigned short)
@ -481,6 +487,12 @@ namespace boost
#if !defined(BOOST_NO_STD_WSTRING) && !defined(BOOST_NO_INTRINSIC_WCHAR_T)
BOOST_HASH_SPECIALIZE_REF(std::wstring)
#endif
#if !defined(BOOST_NO_CXX11_CHAR16_T)
BOOST_HASH_SPECIALIZE_REF(std::basic_string<char16_t>)
#endif
#if !defined(BOOST_NO_CXX11_CHAR32_T)
BOOST_HASH_SPECIALIZE_REF(std::basic_string<char32_t>)
#endif
#if !defined(BOOST_NO_LONG_LONG)
BOOST_HASH_SPECIALIZE(boost::long_long_type)