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compatibility-c++0x.cc (_Fnv_hash<4>, [...]): Add.

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2009-11-21  Paolo Carlini  <paolo.carlini@oracle.com>

	* src/compatibility-c++0x.cc (_Fnv_hash<4>, _Fnv_hash<8>): Add.

From-SVN: r154361
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Paolo Carlini 2009-11-20 10:35:43 +00:00 committed by Paolo Carlini
parent c86818cfbe
commit 3d68714e22
2 changed files with 37 additions and 0 deletions
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4
libstdc++-v3/ChangeLog
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@ -1,3 +1,7 @@
2009-11-21 Paolo Carlini <paolo.carlini@oracle.com>
* src/compatibility-c++0x.cc (_Fnv_hash<4>, _Fnv_hash<8>): Add.
2009-11-19 Benjamin Kosnik <bkoz@redhat.com>
* src/pool_allocator.cc: Adjust catch blocks.

33
libstdc++-v3/src/compatibility-c++0x.cc
View File

@ -57,6 +57,39 @@ namespace std
}
};
template<>
struct _Fnv_hash<4>
{
static size_t
hash(const char* __first, size_t __length)
{
size_t __result = static_cast<size_t>(2166136261UL);
for (; __length > 0; --__length)
{
__result ^= static_cast<size_t>(*__first++);
__result *= static_cast<size_t>(16777619UL);
}
return __result;
}
};
template<>
struct _Fnv_hash<8>
{
static size_t
hash(const char* __first, size_t __length)
{
size_t __result =
static_cast<size_t>(14695981039346656037ULL);
for (; __length > 0; --__length)
{
__result ^= static_cast<size_t>(*__first++);
__result *= static_cast<size_t>(1099511628211ULL);
}
return __result;
}
};
#include "hash.cc"
template<>