diff options
Diffstat (limited to 'src/util/serfloat.h')
| -rw-r--r-- | src/util/serfloat.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/util/serfloat.h b/src/util/serfloat.h new file mode 100644 index 0000000000..4d912b0176 --- /dev/null +++ b/src/util/serfloat.h @@ -0,0 +1,16 @@ +// Copyright (c) 2021 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_SERFLOAT_H +#define BITCOIN_UTIL_SERFLOAT_H + +#include <stdint.h> + +/* Encode a double using the IEEE 754 binary64 format. All NaNs are encoded as x86/ARM's + * positive quiet NaN with payload 0. */ +uint64_t EncodeDouble(double f) noexcept; +/* Reverse operation of DecodeDouble. DecodeDouble(EncodeDouble(f))==f unless isnan(f). */ +double DecodeDouble(uint64_t v) noexcept; + +#endif // BITCOIN_UTIL_SERFLOAT_H |