diff options
author | Daniel Wilhelm <shieldwed@outlook.com> | 2018-06-30 12:43:08 +0200 |
---|---|---|
committer | Daniel Wilhelm <shieldwed@outlook.com> | 2018-06-30 12:43:08 +0200 |
commit | a98326eb2954ac1e79f5eac28dbeab3ec15e047f (patch) | |
tree | bb16257a1894b488e365851273735ec13a9442ef /zen/stl_tools.h | |
parent | 10.0 (diff) | |
download | FreeFileSync-a98326eb2954ac1e79f5eac28dbeab3ec15e047f.tar.gz FreeFileSync-a98326eb2954ac1e79f5eac28dbeab3ec15e047f.tar.bz2 FreeFileSync-a98326eb2954ac1e79f5eac28dbeab3ec15e047f.zip |
10.1
Diffstat (limited to 'zen/stl_tools.h')
-rwxr-xr-x | zen/stl_tools.h | 34 |
1 files changed, 10 insertions, 24 deletions
diff --git a/zen/stl_tools.h b/zen/stl_tools.h index f09639e1..2ce2cf33 100755 --- a/zen/stl_tools.h +++ b/zen/stl_tools.h @@ -12,7 +12,7 @@ #include <vector> #include <memory> #include <algorithm> -#include "type_tools.h" +#include "type_traits.h" #include "build_info.h" @@ -54,10 +54,6 @@ template <class BidirectionalIterator1, class BidirectionalIterator2> BidirectionalIterator1 search_last(BidirectionalIterator1 first1, BidirectionalIterator1 last1, BidirectionalIterator2 first2, BidirectionalIterator2 last2); -template <class InputIterator1, class InputIterator2> -bool equal(InputIterator1 first1, InputIterator1 last1, - InputIterator2 first2, InputIterator2 last2); - template <class Num, class ByteIterator> Num hashBytes (ByteIterator first, ByteIterator last); template <class Num, class ByteIterator> Num hashBytesAppend(Num hashVal, ByteIterator first, ByteIterator last); @@ -69,7 +65,7 @@ struct StringHash { const auto* strFirst = strBegin(str); return hashBytes<size_t>(reinterpret_cast<const char*>(strFirst), - reinterpret_cast<const char*>(strFirst + strLength(str))); + reinterpret_cast<const char*>(strFirst + strLength(str))); } }; @@ -181,35 +177,25 @@ BidirectionalIterator1 search_last(const BidirectionalIterator1 first1, Bi } -template <class InputIterator1, class InputIterator2> inline -bool equal(InputIterator1 first1, InputIterator1 last1, - InputIterator2 first2, InputIterator2 last2) -{ - return last1 - first1 == last2 - first2 && std::equal(first1, last1, first2); -} - - - - //FNV-1a: http://en.wikipedia.org/wiki/Fowler%E2%80%93Noll%E2%80%93Vo_hash_function template <class Num, class ByteIterator> inline -Num hashBytes(ByteIterator first, ByteIterator last) +Num hashBytes(ByteIterator first, ByteIterator last) { - static_assert(std::is_integral<Num>::value, ""); - static_assert(sizeof(Num) == 4 || sizeof(Num) == 8, ""); //macOS: size_t is "unsigned long" - const Num base = sizeof(Num) == 4 ? 2166136261U : 14695981039346656037ULL; + static_assert(IsInteger<Num>::value); + static_assert(sizeof(Num) == 4 || sizeof(Num) == 8); //macOS: size_t is "unsigned long" + constexpr Num base = sizeof(Num) == 4 ? 2166136261U : 14695981039346656037ULL; - return hashBytesAppend(base, first, last); + return hashBytesAppend(base, first, last); } template <class Num, class ByteIterator> inline Num hashBytesAppend(Num hashVal, ByteIterator first, ByteIterator last) { - static_assert(sizeof(typename std::iterator_traits<ByteIterator>::value_type) == 1, ""); - const Num prime = sizeof(Num) == 4 ? 16777619U : 1099511628211ULL; + static_assert(sizeof(typename std::iterator_traits<ByteIterator>::value_type) == 1); + constexpr Num prime = sizeof(Num) == 4 ? 16777619U : 1099511628211ULL; - for (; first != last; ++first) + for (; first != last; ++first) { hashVal ^= static_cast<Num>(*first); hashVal *= prime; |