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update libdivide to 3.0

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Daniel Micay 2019-11-06 05:41:58 -05:00
parent dfa49481e5
commit 7945b3f109
1 changed files with 18 additions and 18 deletions
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36
third_party/libdivide.h vendored
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@ -11,8 +11,8 @@
#ifndef LIBDIVIDE_H #ifndef LIBDIVIDE_H
#define LIBDIVIDE_H #define LIBDIVIDE_H
#define LIBDIVIDE_VERSION "2.0" #define LIBDIVIDE_VERSION "3.0"
#define LIBDIVIDE_VERSION_MAJOR 2 #define LIBDIVIDE_VERSION_MAJOR 3
#define LIBDIVIDE_VERSION_MINOR 0 #define LIBDIVIDE_VERSION_MINOR 0
#include <stdint.h> #include <stdint.h>
@ -20,6 +20,7 @@
#if defined(__cplusplus) #if defined(__cplusplus)
#include <cstdlib> #include <cstdlib>
#include <cstdio> #include <cstdio>
#include <type_traits>
#else #else
#include <stdlib.h> #include <stdlib.h>
#include <stdio.h> #include <stdio.h>
@ -1973,16 +1974,16 @@ enum {
// The dispatcher selects a specific division algorithm for a given // The dispatcher selects a specific division algorithm for a given
// type and ALGO using partial template specialization. // type and ALGO using partial template specialization.
template<typename T, int ALGO> struct dispatcher { }; template<bool IS_INTEGRAL, bool IS_SIGNED, int SIZEOF, int ALGO> struct dispatcher { };
template<> struct dispatcher<int32_t, BRANCHFULL> { DISPATCHER_GEN(int32_t, s32) }; template<> struct dispatcher<true, true, sizeof(int32_t), BRANCHFULL> { DISPATCHER_GEN(int32_t, s32) };
template<> struct dispatcher<int32_t, BRANCHFREE> { DISPATCHER_GEN(int32_t, s32_branchfree) }; template<> struct dispatcher<true, true, sizeof(int32_t), BRANCHFREE> { DISPATCHER_GEN(int32_t, s32_branchfree) };
template<> struct dispatcher<uint32_t, BRANCHFULL> { DISPATCHER_GEN(uint32_t, u32) }; template<> struct dispatcher<true, false, sizeof(uint32_t), BRANCHFULL> { DISPATCHER_GEN(uint32_t, u32) };
template<> struct dispatcher<uint32_t, BRANCHFREE> { DISPATCHER_GEN(uint32_t, u32_branchfree) }; template<> struct dispatcher<true, false, sizeof(uint32_t), BRANCHFREE> { DISPATCHER_GEN(uint32_t, u32_branchfree) };
template<> struct dispatcher<int64_t, BRANCHFULL> { DISPATCHER_GEN(int64_t, s64) }; template<> struct dispatcher<true, true, sizeof(int64_t), BRANCHFULL> { DISPATCHER_GEN(int64_t, s64) };
template<> struct dispatcher<int64_t, BRANCHFREE> { DISPATCHER_GEN(int64_t, s64_branchfree) }; template<> struct dispatcher<true, true, sizeof(int64_t), BRANCHFREE> { DISPATCHER_GEN(int64_t, s64_branchfree) };
template<> struct dispatcher<uint64_t, BRANCHFULL> { DISPATCHER_GEN(uint64_t, u64) }; template<> struct dispatcher<true, false, sizeof(uint64_t), BRANCHFULL> { DISPATCHER_GEN(uint64_t, u64) };
template<> struct dispatcher<uint64_t, BRANCHFREE> { DISPATCHER_GEN(uint64_t, u64_branchfree) }; template<> struct dispatcher<true, false, sizeof(uint64_t), BRANCHFREE> { DISPATCHER_GEN(uint64_t, u64_branchfree) };
// This is the main divider class for use by the user (C++ API). // This is the main divider class for use by the user (C++ API).
// The actual division algorithm is selected using the dispatcher struct // The actual division algorithm is selected using the dispatcher struct
@ -2026,9 +2027,11 @@ public:
return div.divide(n); return div.divide(n);
} }
#endif #endif
private: private:
// Storage for the actual divisor // Storage for the actual divisor
dispatcher<T, ALGO> div; dispatcher<std::is_integral<T>::value,
std::is_signed<T>::value, sizeof(T), ALGO> div;
}; };
// Overload of operator / for scalar division // Overload of operator / for scalar division
@ -2058,12 +2061,9 @@ T& operator/=(T& n, const divider<T, ALGO>& div) {
} }
#endif #endif
#if __cplusplus >= 201103L || \ // libdivdie::branchfree_divider<T>
(defined(_MSC_VER) && _MSC_VER >= 1800) template <typename T>
// libdivdie::branchfree_divider<T> using branchfree_divider = divider<T, BRANCHFREE>;
template <typename T>
using branchfree_divider = divider<T, BRANCHFREE>;
#endif
} // namespace libdivide } // namespace libdivide