ARCHIVE/rippled
1
0
Fork 0
mirror of https://github.com/XRPLF/rippled.git synced 2025-12-06 17:27:55 +00:00
Code Issues Packages Projects Releases Wiki Activity

Move mulDiv and lowestTerms to STAmount.cpp

Browse Source
This commit is contained in:
Edward Hennis
2015-07-10 17:47:47 -04:00
parent 656a6c5eb5
commit 382adcc93c
3 changed files with 41 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

35
src/ripple/core/impl/LoadFeeTrack.cpp
View File

@@ -25,41 +25,6 @@
namespace ripple {
template <class T1, class T2>
void lowestTerms(T1& a, T2& b)
{
std::uint64_t x = a, y = b;
while (y != 0)
{
auto t = x % y;
x = y;
y = t;
}
a /= x;
b /= x;
}
// TODO REMOVE!
static
std::uint64_t
mulDiv(std::uint64_t value, std::uint64_t mul, std::uint64_t div)
{
lowestTerms(value, div);
lowestTerms(mul, div);
if (value < mul)
std::swap(value, mul);
const auto max = std::numeric_limits<std::uint64_t>::max();
if (value > max / mul)
{
value /= div;
if (value > max / mul)
throw std::overflow_error("mulDiv");
return value * mul;
}
return value * mul / div;
}
// Scale from fee units to millionths of a ripple
std::uint64_t
LoadFeeTrack::scaleFeeBase (std::uint64_t fee, std::uint64_t baseFee,