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Merge pull request #6867 from ethereum/docs-style-fix-usingfor

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[DOCS] Bring Using For code examples inline with style guide
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chriseth 2019-05-29 20:08:19 +02:00 committed by GitHub
commit cce79ea67b
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1 changed files with 28 additions and 26 deletions
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54
docs/contracts/using-for.rst
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@ -33,39 +33,41 @@ Let us rewrite the set example from the
pragma solidity >=0.4.16 <0.7.0;
// This is the same code as before, just without comments
library Set {
struct Data { mapping(uint => bool) flags; }
struct Data { mapping(uint => bool) flags; }
function insert(Data storage self, uint value)
public
returns (bool)
{
if (self.flags[value])
return false; // already there
self.flags[value] = true;
return true;
}
function insert(Data storage self, uint value)
public
returns (bool)
{
if (self.flags[value])
return false; // already there
self.flags[value] = true;
return true;
}
function remove(Data storage self, uint value)
public
returns (bool)
{
if (!self.flags[value])
return false; // not there
self.flags[value] = false;
return true;
}
function remove(Data storage self, uint value)
public
returns (bool)
{
if (!self.flags[value])
return false; // not there
self.flags[value] = false;
return true;
}
function contains(Data storage self, uint value)
public
view
returns (bool)
{
return self.flags[value];
}
function contains(Data storage self, uint value)
public
view
returns (bool)
{
return self.flags[value];
}
}
contract C {
using Set for Set.Data; // this is the crucial change
Set.Data knownValues;