1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /*
4 **********************************************************************
5 *   Copyright (C) 2003-2011, International Business Machines
6 *   Corporation and others.  All Rights Reserved.
7 **********************************************************************
8 */
9 
10 #include "uvector.h"
11 
12 U_NAMESPACE_BEGIN
13 
14 UOBJECT_DEFINE_RTTI_IMPLEMENTATION(UStack)
15 
16 UStack::UStack(UErrorCode &status) :
17     UVector(status)
18 {
19 }
20 
21 UStack::UStack(int32_t initialCapacity, UErrorCode &status) :
22     UVector(initialCapacity, status)
23 {
24 }
25 
26 UStack::UStack(UObjectDeleter *d, UElementsAreEqual *c, UErrorCode &status) :
27     UVector(d, c, status)
28 {
29 }
30 
31 UStack::UStack(UObjectDeleter *d, UElementsAreEqual *c, int32_t initialCapacity, UErrorCode &status) :
32     UVector(d, c, initialCapacity, status)
33 {
34 }
35 
36 UStack::~UStack() {}
37 
38 void* UStack::pop(void) {
39     int32_t n = size() - 1;
40     void* result = 0;
41     if (n >= 0) {
42         result = elementAt(n);
43         removeElementAt(n);
44     }
45     return result;
46 }
47 
48 int32_t UStack::popi(void) {
49     int32_t n = size() - 1;
50     int32_t result = 0;
51     if (n >= 0) {
52         result = elementAti(n);
53         removeElementAt(n);
54     }
55     return result;
56 }
57 
58 int32_t UStack::search(void* obj) const {
59     int32_t i = indexOf(obj);
60     return (i >= 0) ? size() - i : i;
61 }
62 
63 U_NAMESPACE_END
64