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Diffstat (limited to 'src/util/any.h')
-rw-r--r-- | src/util/any.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/util/any.h b/src/util/any.h new file mode 100644 index 0000000000..4562c5bd8a --- /dev/null +++ b/src/util/any.h @@ -0,0 +1,26 @@ +// Copyright (c) 2023 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#ifndef BITCOIN_UTIL_ANY_H +#define BITCOIN_UTIL_ANY_H + +#include <any> + +namespace util { + +/** + * Helper function to access the contained object of a std::any instance. + * Returns a pointer to the object if passed instance has a value and the type + * matches, nullptr otherwise. + */ +template<typename T> +T* AnyPtr(const std::any& any) noexcept +{ + T* const* ptr = std::any_cast<T*>(&any); + return ptr ? *ptr : nullptr; +} + +} // namespace util + +#endif // BITCOIN_UTIL_ANY_H |