diff options
author | Spartan322 <Megacake1234@gmail.com> | 2023-11-28 11:09:26 +0100 |
---|---|---|
committer | Spartan322 <Megacake1234@gmail.com> | 2024-05-09 22:11:26 +0200 |
commit | 757114a3c5b748567b42f273c7b78ca039ae983c (patch) | |
tree | e07390b682052129c91f4b157068bcdd84ceecb4 /include/openvic-dataloader/detail/utility/PointerHash.hpp | |
parent | 7211a228e68c8a6b1ad1c1c5ec68c8d720b6d2ba (diff) |
Add `deps/dryad` -> https://github.com/Spartan322/dryadadd/dryad
Add `deps/fmt` -> https://github.com/fmtlib/fmt
Add `deps/range-v3` -> https://github.com/ericniebler/range-v3
Improve parser error and warning support
Update .clang-format
Update `deps/SCsub`
Diffstat (limited to 'include/openvic-dataloader/detail/utility/PointerHash.hpp')
-rw-r--r-- | include/openvic-dataloader/detail/utility/PointerHash.hpp | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/openvic-dataloader/detail/utility/PointerHash.hpp b/include/openvic-dataloader/detail/utility/PointerHash.hpp new file mode 100644 index 0000000..c0d28bc --- /dev/null +++ b/include/openvic-dataloader/detail/utility/PointerHash.hpp @@ -0,0 +1,23 @@ +#pragma once + +#include <cstdint> + +namespace ovdl::detail { + /* hash any pointer */ + template<typename T> + struct PointerHash { + using type = T; + using ptr_type = T*; + using const_type = const T; + using const_ptr_type = const T*; + using const_ptr_const_type = const const_ptr_type; + constexpr std::size_t operator()(const_ptr_const_type pointer) const { + auto addr = reinterpret_cast<uintptr_t>(pointer); +#if SIZE_MAX < UINTPTR_MAX + /* size_t is not large enough to hold the pointer’s memory address */ + addr %= SIZE_MAX; /* truncate the address so it is small enough to fit in a size_t */ +#endif + return addr; + } + }; +}
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