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📁 ..	-	2025-05-25 12:27
📄 int64.go // Copyright (C) MongoDB, Inc. 2023-present. // // Licensed under the Apache License, Version 2.0 (the "License"); you may // not use this file except in compliance with the License. You may obtain // a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 package ptrutil // CompareInt64 is a piecewise function with the following return conditions: // // (1) 2, ptr1 != nil AND ptr2 == nil // (2) 1, ptr1 > ptr2 // (3) 0, ptr1 == ptr2 or ptr1 == ptr2 // (4) -1, ptr1 < ptr2 // (5) -2, ptr1 == nil AND ptr2 != nil func CompareInt64(ptr1, ptr2 int64) int { if ptr1 == ptr2 { // This will catch the double nil or same-pointer cases. return 0 } if ptr1 == nil && ptr2 != nil { return -2 } if ptr1 != nil && ptr2 == nil { return 2 } if ptr1 > ptr2 { return 1 } if ptr1 < *ptr2 { return -1 } return 0 }	854 B	2025-05-25 12:27
📄 int64_test.go // Copyright (C) MongoDB, Inc. 2023-present. // // Licensed under the Apache License, Version 2.0 (the "License"); you may // not use this file except in compliance with the License. You may obtain // a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 package ptrutil import ( "testing" "go.mongodb.org/mongo-driver/internal/assert" ) func TestCompareInt64(t testing.T) { t.Parallel() int64ToPtr := func(i64 int64) int64 { return &i64 } int64Ptr := int64ToPtr(1) tests := []struct { name string ptr1, ptr2 int64 want int }{ { name: "empty", want: 0, }, { name: "ptr1 nil", ptr2: int64ToPtr(1), want: -2, }, { name: "ptr2 nil", ptr1: int64ToPtr(1), want: 2, }, { name: "ptr1 and ptr2 have same value, different address", ptr1: int64ToPtr(1), ptr2: int64ToPtr(1), want: 0, }, { name: "ptr1 and ptr2 have the same address", ptr1: int64Ptr, ptr2: int64Ptr, want: 0, }, { name: "ptr1 GT ptr2", ptr1: int64ToPtr(1), ptr2: int64ToPtr(0), want: 1, }, { name: "ptr1 LT ptr2", ptr1: int64ToPtr(0), ptr2: int64ToPtr(1), want: -1, }, } for _, test := range tests { test := test // capture the range variable t.Run(test.name, func(t testing.T) { t.Parallel() got := CompareInt64(test.ptr1, test.ptr2) assert.Equal(t, test.want, got, "compareInt64() = %v, wanted %v", got, test.want) }) } }	1.42 KB	2025-05-25 12:27

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