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Merge branch 'audit-fix/exponentialCurve-zero-check' into all-audit-fixes

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Owen
2022-02-07 16:28:39 -08:00
parent acbea6ed25 dceece3a7b
commit bcf706d88e
1 changed files with 11 additions and 0 deletions
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src/bonding-curves/ExponentialCurve.sol
+11
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@@ -59,6 +59,12 @@ contract ExponentialCurve is ICurve, CurveErrorCodes {
uint256 protocolFee
)
{
// We only calculate changes for buying 1 or more NFTs
if (numItems == 0) {
return (Error.INVALID_NUMITEMS, 0, 0, 0);
}
uint256 deltaPowN = delta.fpow(numItems, FixedPointMathLib.WAD);
// For an exponential curve, the spot price is multiplied by delta for each item bought
@@ -122,6 +128,11 @@ contract ExponentialCurve is ICurve, CurveErrorCodes {
uint256 protocolFee
)
{
// We only calculate changes for buying 1 or more NFTs
if (numItems == 0) {
return (Error.INVALID_NUMITEMS, 0, 0, 0);
}
uint256 invDelta = FixedPointMathLib.WAD.fdiv(
delta,
FixedPointMathLib.WAD