diff options
Diffstat (limited to 'src/policy')
| -rw-r--r-- | src/policy/feerate.cpp | 6 | ||||
| -rw-r--r-- | src/policy/feerate.h | 1 |
2 files changed, 6 insertions, 1 deletions
diff --git a/src/policy/feerate.cpp b/src/policy/feerate.cpp index 25b9282b4e..ce149067b7 100644 --- a/src/policy/feerate.cpp +++ b/src/policy/feerate.cpp @@ -7,6 +7,8 @@ #include <tinyformat.h> +#include <cmath> + CFeeRate::CFeeRate(const CAmount& nFeePaid, uint32_t num_bytes) { const int64_t nSize{num_bytes}; @@ -22,7 +24,9 @@ CAmount CFeeRate::GetFee(uint32_t num_bytes) const { const int64_t nSize{num_bytes}; - CAmount nFee = nSatoshisPerK * nSize / 1000; + // Be explicit that we're converting from a double to int64_t (CAmount) here. + // We've previously had issues with the silent double->int64_t conversion. + CAmount nFee{static_cast<CAmount>(std::ceil(nSatoshisPerK * nSize / 1000.0))}; if (nFee == 0 && nSize != 0) { if (nSatoshisPerK > 0) nFee = CAmount(1); diff --git a/src/policy/feerate.h b/src/policy/feerate.h index d296d32774..57bb5d02c0 100644 --- a/src/policy/feerate.h +++ b/src/policy/feerate.h @@ -48,6 +48,7 @@ public: CFeeRate(const CAmount& nFeePaid, uint32_t num_bytes); /** * Return the fee in satoshis for the given size in bytes. + * If the calculated fee would have fractional satoshis, then the returned fee will always be rounded up to the nearest satoshi. */ CAmount GetFee(uint32_t num_bytes) const; /** |