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Add overloads of hash_value for more built in types. They're not strictly

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needed and aren't in the original specifiction but they avoid a warning. See
ticket #1095 for details.


[SVN r38563]
This commit is contained in:
nobody
2007-08-10 10:32:21 +00:00
parent 0728daf92d
commit fbe0c3eeca
2 changed files with 71 additions and 7 deletions
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30
doc/ref.xml
View File

@@ -515,6 +515,36 @@ for(; first != last; ++first)
Implementation of the hash function.
</purpose>
<signature>
<type>std::size_t</type>
<parameter name="val"><paramtype>bool</paramtype></parameter>
</signature>
<signature>
<type>std::size_t</type>
<parameter name="val"><paramtype>char</paramtype></parameter>
</signature>
<signature>
<type>std::size_t</type>
<parameter name="val"><paramtype>signed char</paramtype></parameter>
</signature>
<signature>
<type>std::size_t</type>
<parameter name="val"><paramtype>unsigned char</paramtype></parameter>
</signature>
<signature>
<type>std::size_t</type>
<parameter name="val"><paramtype>short</paramtype></parameter>
</signature>
<signature>
<type>std::size_t</type>
<parameter name="val"><paramtype>unsigned short</paramtype></parameter>
</signature>
<signature>
<type>std::size_t</type>
<parameter name="val"><paramtype>int</paramtype></parameter>

48
include/boost/functional/hash/hash.hpp
View File

@@ -34,17 +34,21 @@
namespace boost
{
#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
// Borland complains about an ambiguous function overload
// when compiling boost::hash<bool>.
std::size_t hash_value(bool);
#endif
std::size_t hash_value(char);
std::size_t hash_value(unsigned char);
std::size_t hash_value(signed char);
std::size_t hash_value(short);
std::size_t hash_value(unsigned short);
std::size_t hash_value(int);
std::size_t hash_value(unsigned int);
std::size_t hash_value(long);
std::size_t hash_value(unsigned long);
#if !defined(BOOST_NO_INTRINSIC_WCHAR_T)
std::size_t hash_value(wchar_t);
#endif
#if defined(BOOST_HAS_LONG_LONG)
std::size_t hash_value(long long);
std::size_t hash_value(unsigned long long);
@@ -137,12 +141,35 @@ namespace boost
}
}
#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
inline std::size_t hash_value(bool v)
{
return static_cast<std::size_t>(v);
}
#endif
inline std::size_t hash_value(char v)
{
return static_cast<std::size_t>(v);
}
std::size_t hash_value(unsigned char v)
{
return static_cast<std::size_t>(v);
}
std::size_t hash_value(signed char v)
{
return static_cast<std::size_t>(v);
}
inline std::size_t hash_value(short v)
{
return static_cast<std::size_t>(v);
}
inline std::size_t hash_value(unsigned short v)
{
return static_cast<std::size_t>(v);
}
inline std::size_t hash_value(int v)
{
@@ -164,6 +191,13 @@ namespace boost
return static_cast<std::size_t>(v);
}
#if !defined(BOOST_NO_INTRINSIC_WCHAR_T)
std::size_t hash_value(wchar_t v)
{
return static_cast<std::size_t>(v);
}
#endif
#if defined(BOOST_HAS_LONG_LONG)
inline std::size_t hash_value(long long v)
{