+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
*
*
*******************************************************************************
* file name: localpointer.h
-* encoding: US-ASCII
+* encoding: UTF-8
* tab size: 8 (not used)
* indentation:4
*
* \code
* LocalPointer<UnicodeString> s(new UnicodeString((UChar32)0x50005));
* int32_t length=s->length(); // 2
- * UChar lead=s->charAt(0); // 0xd900
+ * char16_t lead=s->charAt(0); // 0xd900
* if(some condition) { return; } // no need to explicitly delete the pointer
- * s.adoptInstead(new UnicodeString((UChar)0xfffc));
+ * s.adoptInstead(new UnicodeString((char16_t)0xfffc));
* length=s->length(); // 1
* // no need to explicitly delete the pointer
* \endcode
errorCode=U_MEMORY_ALLOCATION_ERROR;
}
}
-#ifndef U_HIDE_DRAFT_API
#if U_HAVE_RVALUE_REFERENCES
/**
* Move constructor, leaves src with isNull().
* @param src source smart pointer
- * @draft ICU 56
+ * @stable ICU 56
*/
LocalPointer(LocalPointer<T> &&src) U_NOEXCEPT : LocalPointerBase<T>(src.ptr) {
src.ptr=NULL;
}
#endif
-#endif /* U_HIDE_DRAFT_API */
/**
* Destructor deletes the object it owns.
* @stable ICU 4.4
~LocalPointer() {
delete LocalPointerBase<T>::ptr;
}
-#ifndef U_HIDE_DRAFT_API
#if U_HAVE_RVALUE_REFERENCES
/**
* Move assignment operator, leaves src with isNull().
* The behavior is undefined if *this and src are the same object.
* @param src source smart pointer
* @return *this
- * @draft ICU 56
+ * @stable ICU 56
*/
LocalPointer<T> &operator=(LocalPointer<T> &&src) U_NOEXCEPT {
return moveFrom(src);
}
#endif
+ // do not use #ifndef U_HIDE_DRAFT_API for moveFrom, needed by non-draft API
/**
* Move assignment, leaves src with isNull().
* The behavior is undefined if *this and src are the same object.
/**
* Swap pointers.
* @param other other smart pointer
- * @draft ICU 56
+ * @stable ICU 56
*/
void swap(LocalPointer<T> &other) U_NOEXCEPT {
T *temp=LocalPointerBase<T>::ptr;
LocalPointerBase<T>::ptr=other.ptr;
other.ptr=temp;
}
-#endif /* U_HIDE_DRAFT_API */
/**
* Non-member LocalPointer swap function.
* @param p1 will get p2's pointer
* @param p2 will get p1's pointer
- * @draft ICU 56
+ * @stable ICU 56
*/
friend inline void swap(LocalPointer<T> &p1, LocalPointer<T> &p2) U_NOEXCEPT {
p1.swap(p2);
* Usage example:
* \code
* LocalArray<UnicodeString> a(new UnicodeString[2]);
- * a[0].append((UChar)0x61);
+ * a[0].append((char16_t)0x61);
* if(some condition) { return; } // no need to explicitly delete the array
* a.adoptInstead(new UnicodeString[4]);
- * a[3].append((UChar)0x62).append((UChar)0x63).reverse();
+ * a[3].append((char16_t)0x62).append((char16_t)0x63).reverse();
* // no need to explicitly delete the array
* \endcode
*
* @stable ICU 4.4
*/
explicit LocalArray(T *p=NULL) : LocalPointerBase<T>(p) {}
-#ifndef U_HIDE_DRAFT_API
/**
* Constructor takes ownership and reports an error if NULL.
*
* @param p simple pointer to an array of T objects that is adopted
* @param errorCode in/out UErrorCode, set to U_MEMORY_ALLOCATION_ERROR
* if p==NULL and no other failure code had been set
- * @draft ICU 56
+ * @stable ICU 56
*/
LocalArray(T *p, UErrorCode &errorCode) : LocalPointerBase<T>(p) {
if(p==NULL && U_SUCCESS(errorCode)) {
/**
* Move constructor, leaves src with isNull().
* @param src source smart pointer
- * @draft ICU 56
+ * @stable ICU 56
*/
LocalArray(LocalArray<T> &&src) U_NOEXCEPT : LocalPointerBase<T>(src.ptr) {
src.ptr=NULL;
}
#endif
-#endif /* U_HIDE_DRAFT_API */
/**
* Destructor deletes the array it owns.
* @stable ICU 4.4
~LocalArray() {
delete[] LocalPointerBase<T>::ptr;
}
-#ifndef U_HIDE_DRAFT_API
#if U_HAVE_RVALUE_REFERENCES
/**
* Move assignment operator, leaves src with isNull().
* The behavior is undefined if *this and src are the same object.
* @param src source smart pointer
* @return *this
- * @draft ICU 56
+ * @stable ICU 56
*/
LocalArray<T> &operator=(LocalArray<T> &&src) U_NOEXCEPT {
return moveFrom(src);
}
#endif
+ // do not use #ifndef U_HIDE_DRAFT_API for moveFrom, needed by non-draft API
/**
* Move assignment, leaves src with isNull().
* The behavior is undefined if *this and src are the same object.
/**
* Swap pointers.
* @param other other smart pointer
- * @draft ICU 56
+ * @stable ICU 56
*/
void swap(LocalArray<T> &other) U_NOEXCEPT {
T *temp=LocalPointerBase<T>::ptr;
LocalPointerBase<T>::ptr=other.ptr;
other.ptr=temp;
}
-#endif /* U_HIDE_DRAFT_API */
/**
* Non-member LocalArray swap function.
* @param p1 will get p2's pointer
* @param p2 will get p1's pointer
- * @draft ICU 56
+ * @stable ICU 56
*/
friend inline void swap(LocalArray<T> &p1, LocalArray<T> &p2) U_NOEXCEPT {
p1.swap(p2);
delete[] LocalPointerBase<T>::ptr;
LocalPointerBase<T>::ptr=p;
}
-#ifndef U_HIDE_DRAFT_API
/**
* Deletes the array it owns,
* and adopts (takes ownership of) the one passed in.
* @param p simple pointer to an array of T objects that is adopted
* @param errorCode in/out UErrorCode, set to U_MEMORY_ALLOCATION_ERROR
* if p==NULL and no other failure code had been set
- * @draft ICU 56
+ * @stable ICU 56
*/
void adoptInsteadAndCheckErrorCode(T *p, UErrorCode &errorCode) {
if(U_SUCCESS(errorCode)) {
delete[] p;
}
}
-#endif /* U_HIDE_DRAFT_API */
/**
* Array item access (writable).
* No index bounds check.
* like LocalPointer<Type> except that this subclass will use the closeFunction
* rather than the C++ delete operator.
*
- * Requirement: The closeFunction must tolerate a NULL pointer.
- * (We could add a NULL check here but it is normally redundant.)
- *
* Usage example:
* \code
* LocalUCaseMapPointer csm(ucasemap_open(localeID, options, &errorCode));
: LocalPointerBase<Type>(src.ptr) { \
src.ptr=NULL; \
} \
- ~LocalPointerClassName() { closeFunction(ptr); } \
+ ~LocalPointerClassName() { if (ptr != NULL) { closeFunction(ptr); } } \
LocalPointerClassName &operator=(LocalPointerClassName &&src) U_NOEXCEPT { \
return moveFrom(src); \
} \
LocalPointerClassName &moveFrom(LocalPointerClassName &src) U_NOEXCEPT { \
- closeFunction(ptr); \
+ if (ptr != NULL) { closeFunction(ptr); } \
LocalPointerBase<Type>::ptr=src.ptr; \
src.ptr=NULL; \
return *this; \
p1.swap(p2); \
} \
void adoptInstead(Type *p) { \
- closeFunction(ptr); \
+ if (ptr != NULL) { closeFunction(ptr); } \
ptr=p; \
} \
}
explicit LocalPointerClassName(Type *p=NULL) : LocalPointerBase<Type>(p) {} \
~LocalPointerClassName() { closeFunction(ptr); } \
LocalPointerClassName &moveFrom(LocalPointerClassName &src) U_NOEXCEPT { \
- closeFunction(ptr); \
+ if (ptr != NULL) { closeFunction(ptr); } \
LocalPointerBase<Type>::ptr=src.ptr; \
src.ptr=NULL; \
return *this; \
p1.swap(p2); \
} \
void adoptInstead(Type *p) { \
- closeFunction(ptr); \
+ if (ptr != NULL) { closeFunction(ptr); } \
ptr=p; \
} \
}
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