From 0c03c28a3b7609d218a9acdff099fc0bda0f4ae6 Mon Sep 17 00:00:00 2001
From: Gil <mcg@google.com>
Date: Fri, 20 Apr 2018 12:11:19 -0700
Subject: Implement find-related methods on C++ immutable maps (#1145)

* Standardize method ordering across sorted maps
* Add SortedMap::find
* Add SortedMap::find_index
* Add SortedMap::contains
---
 Firestore/core/src/firebase/firestore/util/comparison.h | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'Firestore/core/src/firebase/firestore/util')

diff --git a/Firestore/core/src/firebase/firestore/util/comparison.h b/Firestore/core/src/firebase/firestore/util/comparison.h
index 23207f5..d7f4dfd 100644
--- a/Firestore/core/src/firebase/firestore/util/comparison.h
+++ b/Firestore/core/src/firebase/firestore/util/comparison.h
@@ -114,9 +114,10 @@ struct Comparator<std::vector<uint8_t>>
  * Perform a three-way comparison between the left and right values using
  * the appropriate Comparator for the values based on their type.
  */
-template <typename T>
-ComparisonResult Compare(const T& left, const T& right) {
-  Comparator<T> less_than;
+template <typename T, typename C = Comparator<T>>
+ComparisonResult Compare(const T& left,
+                         const T& right,
+                         const C& less_than = C()) {
   if (less_than(left, right)) {
     return ComparisonResult::Ascending;
   } else if (less_than(right, left)) {
-- 
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