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Mark comparison call operator as const

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This commit is contained in:
Will Dietz 2017-12-11 12:05:14 -06:00
parent e4d43f1f94
commit 00e0c416ff
1 changed files with 2 additions and 2 deletions
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4
src/libstore/build.cc
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@ -79,7 +79,7 @@ typedef std::shared_ptr<Goal> GoalPtr;
typedef std::weak_ptr<Goal> WeakGoalPtr;
struct CompareGoalPtrs {
bool operator() (const GoalPtr & a, const GoalPtr & b);
bool operator() (const GoalPtr & a, const GoalPtr & b) const;
};
/* Set of goals. */
@ -178,7 +178,7 @@ protected:
};
bool CompareGoalPtrs::operator() (const GoalPtr & a, const GoalPtr & b) {
bool CompareGoalPtrs::operator() (const GoalPtr & a, const GoalPtr & b) const {
string s1 = a->key();
string s2 = b->key();
return s1 < s2;