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New Zero struct implements "compare with zero."

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* Zero lets classes efficiently compare with 0, so
  you can use constructors like x < zero or y != zero.
* New BEAST_CONSTEXPR to handle Windows/C++11 differences
  regarding the constexpr specifier.
This commit is contained in:
Tom Swirly
2014-04-10 19:14:52 -04:00
committed by Vinnie Falco
parent 524f41177c
commit 64ee0d07d0
26 changed files with 591 additions and 425 deletions
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16
src/ripple_app/ledger/LedgerEntrySet.cpp
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@@ -215,7 +215,7 @@ void LedgerEntrySet::entryModify (SLE::ref sle)
{
case taaCACHED:
it->second.mAction = taaMODIFY;
// Fall through
case taaCREATE:
@@ -1116,7 +1116,7 @@ STAmount LedgerEntrySet::rippleOwed (const uint160& uToAccountID, const uint160&
}
else
{
saBalance.zero (uCurrencyID, uToAccountID);
saBalance.clear (uCurrencyID, uToAccountID);
WriteLog (lsDEBUG, LedgerEntrySet) << "rippleOwed: No credit line between "
<< RippleAddress::createHumanAccountID (uFromAccountID)
@@ -1149,7 +1149,7 @@ STAmount LedgerEntrySet::rippleLimit (const uint160& uToAccountID, const uint160
}
else
{
saLimit.zero (uCurrencyID, uToAccountID);
saLimit.clear (uCurrencyID, uToAccountID);
#if 0
// We could cut off coming here if we test for no line sooner.
assert (false);
@@ -1244,7 +1244,7 @@ STAmount LedgerEntrySet::rippleHolds (const uint160& uAccountID, const uint160&
if (!sleRippleState)
{
saBalance.zero (uCurrencyID, uIssuerID);
saBalance.clear (uCurrencyID, uIssuerID);
}
else if (uAccountID > uIssuerID)
{
@@ -1279,7 +1279,7 @@ STAmount LedgerEntrySet::accountHolds (const uint160& uAccountID, const uint160&
if (saBalance < uReserve)
{
saAmount.zero ();
saAmount.clear ();
}
else
{
@@ -1525,8 +1525,8 @@ TER LedgerEntrySet::rippleCredit (const uint160& uSenderID, const uint160& uRece
std::uint32_t uFlags;
// YYY Could skip this if rippling in reverse.
if (saBefore.isPositive () // Sender balance was positive.
&& !saBalance.isPositive () // Sender is zero or negative.
if (saBefore > zero // Sender balance was positive.
&& saBalance <= zero // Sender is zero or negative.
&& isSetBit ((uFlags = sleRippleState->getFieldU32 (sfFlags)), !bSenderHigh ? lsfLowReserve : lsfHighReserve) // Sender reserve is set.
&& !isSetBit (uFlags, !bSenderHigh ? lsfLowNoRipple : lsfHighNoRipple)
&& !sleRippleState->getFieldAmount (!bSenderHigh ? sfLowLimit : sfHighLimit) // Sender trust limit is 0.
@@ -1617,7 +1617,7 @@ TER LedgerEntrySet::accountSend (const uint160& uSenderID, const uint160& uRecei
{
TER terResult = tesSUCCESS;
assert (!saAmount.isNegative ());
assert (saAmount >= zero);
if (!saAmount || (uSenderID == uReceiverID))
{