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Name	Size	Permission
alphaindex.h	25.29 KB	-rw-r--r--
appendable.h	8.38 KB	-rw-r--r--
basictz.h	8.77 KB	-rw-r--r--
bms.h	8.68 KB	-rw-r--r--
bmsearch.h	7.33 KB	-rw-r--r--
brkiter.h	24.24 KB	-rw-r--r--
bytestream.h	9.16 KB	-rw-r--r--
bytestrie.h	19.19 KB	-rw-r--r--
bytestriebuilder.h	6.73 KB	-rw-r--r--
calendar.h	102.76 KB	-rw-r--r--
caniter.h	7.23 KB	-rw-r--r--
chariter.h	23.71 KB	-rw-r--r--
choicfmt.h	27.82 KB	-rw-r--r--
coleitr.h	12.69 KB	-rw-r--r--
coll.h	53.44 KB	-rw-r--r--
colldata.h	12.42 KB	-rw-r--r--
curramt.h	3.57 KB	-rw-r--r--
currpinf.h	6.93 KB	-rw-r--r--
currunit.h	2.99 KB	-rw-r--r--
datefmt.h	33.67 KB	-rw-r--r--
dbbi.h	966 B	-rw-r--r--
dcfmtsym.h	14.91 KB	-rw-r--r--
decimfmt.h	97.38 KB	-rw-r--r--
docmain.h	6.28 KB	-rw-r--r--
dtfmtsym.h	30.27 KB	-rw-r--r--
dtintrv.h	3.65 KB	-rw-r--r--
dtitvfmt.h	39.24 KB	-rw-r--r--
dtitvinf.h	18.56 KB	-rw-r--r--
dtptngen.h	19.54 KB	-rw-r--r--
dtrule.h	8.51 KB	-rw-r--r--
enumset.h	1.8 KB	-rw-r--r--
errorcode.h	4.67 KB	-rw-r--r--
fieldpos.h	8.51 KB	-rw-r--r--
fmtable.h	22.09 KB	-rw-r--r--
format.h	12.33 KB	-rw-r--r--
fpositer.h	2.97 KB	-rw-r--r--
gender.h	3.02 KB	-rw-r--r--
gregocal.h	33.28 KB	-rw-r--r--
icudataver.h	990 B	-rw-r--r--
icuplug.h	11.49 KB	-rw-r--r--
idna.h	12.68 KB	-rw-r--r--
listformatter.h	3.97 KB	-rw-r--r--
localpointer.h	9.13 KB	-rw-r--r--
locdspnm.h	7.14 KB	-rw-r--r--
locid.h	30.48 KB	-rw-r--r--
measfmt.h	1.94 KB	-rw-r--r--
measunit.h	1.6 KB	-rw-r--r--
measure.h	3.24 KB	-rw-r--r--
messagepattern.h	33.6 KB	-rw-r--r--
msgfmt.h	43.59 KB	-rw-r--r--
normalizer2.h	28.34 KB	-rw-r--r--
normlzr.h	29.26 KB	-rw-r--r--
numfmt.h	43.59 KB	-rw-r--r--
numsys.h	5.37 KB	-rw-r--r--
parseerr.h	2.97 KB	-rw-r--r--
parsepos.h	5.34 KB	-rw-r--r--
platform.h	24.23 KB	-rw-r--r--
plurfmt.h	24.58 KB	-rw-r--r--
plurrule.h	14.56 KB	-rw-r--r--
ptypes.h	3.36 KB	-rw-r--r--
putil.h	5.61 KB	-rw-r--r--
rbbi.h	29.15 KB	-rw-r--r--
rbnf.h	45.32 KB	-rw-r--r--
rbtz.h	15.33 KB	-rw-r--r--
regex.h	83.1 KB	-rw-r--r--
rep.h	9.33 KB	-rw-r--r--
resbund.h	17.89 KB	-rw-r--r--
schriter.h	6.15 KB	-rw-r--r--
search.h	22.1 KB	-rw-r--r--
selfmt.h	14.13 KB	-rw-r--r--
simpletz.h	45.1 KB	-rw-r--r--
smpdtfmt.h	57.58 KB	-rw-r--r--
sortkey.h	10.98 KB	-rw-r--r--
std_string.h	783 B	-rw-r--r--
strenum.h	9.92 KB	-rw-r--r--
stringpiece.h	6.38 KB	-rw-r--r--
stringtriebuilder.h	14.75 KB	-rw-r--r--
stsearch.h	21.76 KB	-rw-r--r--
symtable.h	4.1 KB	-rw-r--r--
tblcoll.h	34.23 KB	-rw-r--r--
timezone.h	37.28 KB	-rw-r--r--
tmunit.h	3.39 KB	-rw-r--r--
tmutamt.h	4.69 KB	-rw-r--r--
tmutfmt.h	8.51 KB	-rw-r--r--
translit.h	53.76 KB	-rw-r--r--
tzfmt.h	32.06 KB	-rw-r--r--
tznames.h	14.83 KB	-rw-r--r--
tzrule.h	35.21 KB	-rw-r--r--
tztrans.h	5.96 KB	-rw-r--r--
ubidi.h	88.57 KB	-rw-r--r--
ubrk.h	19.13 KB	-rw-r--r--
ucal.h	50.49 KB	-rw-r--r--
ucasemap.h	16.45 KB	-rw-r--r--
ucat.h	5.25 KB	-rw-r--r--
uchar.h	115.43 KB	-rw-r--r--
ucharstrie.h	20.8 KB	-rw-r--r--
ucharstriebuilder.h	6.83 KB	-rw-r--r--
uchriter.h	12.82 KB	-rw-r--r--
uclean.h	10.38 KB	-rw-r--r--
ucnv.h	82.6 KB	-rw-r--r--
ucnv_cb.h	6.48 KB	-rw-r--r--
ucnv_err.h	20.87 KB	-rw-r--r--
ucnvsel.h	6.03 KB	-rw-r--r--
ucol.h	57.93 KB	-rw-r--r--
ucoleitr.h	12.25 KB	-rw-r--r--
uconfig.h	10.79 KB	-rw-r--r--
ucsdet.h	12.6 KB	-rw-r--r--
ucurr.h	12.96 KB	-rw-r--r--
udat.h	46.47 KB	-rw-r--r--
udata.h	14.81 KB	-rw-r--r--
udateintervalformat.h	6.5 KB	-rw-r--r--
udatpg.h	23.24 KB	-rw-r--r--
udisplaycontext.h	4.34 KB	-rw-r--r--
uenum.h	7.79 KB	-rw-r--r--
ugender.h	1.85 KB	-rw-r--r--
uidna.h	32.81 KB	-rw-r--r--
uiter.h	22.67 KB	-rw-r--r--
uldnames.h	10.5 KB	-rw-r--r--
uloc.h	44.07 KB	-rw-r--r--
ulocdata.h	10.37 KB	-rw-r--r--
umachine.h	10.23 KB	-rw-r--r--
umisc.h	1.23 KB	-rw-r--r--
umsg.h	24.12 KB	-rw-r--r--
unifilt.h	3.52 KB	-rw-r--r--
unifunct.h	3.87 KB	-rw-r--r--
unimatch.h	5.93 KB	-rw-r--r--
unirepl.h	3.21 KB	-rw-r--r--
uniset.h	63.07 KB	-rw-r--r--
unistr.h	164.33 KB	-rw-r--r--
unorm.h	22.89 KB	-rw-r--r--
unorm2.h	21.91 KB	-rw-r--r--
unum.h	39.21 KB	-rw-r--r--
uobject.h	12.21 KB	-rw-r--r--
upluralrules.h	4.47 KB	-rw-r--r--
uregex.h	71.47 KB	-rw-r--r--
urename.h	120.88 KB	-rw-r--r--
urep.h	5.27 KB	-rw-r--r--
ures.h	35.92 KB	-rw-r--r--
uscript.h	20.46 KB	-rw-r--r--
usearch.h	36.09 KB	-rw-r--r--
uset.h	39.45 KB	-rw-r--r--
usetiter.h	9.38 KB	-rw-r--r--
ushape.h	17.89 KB	-rw-r--r--
uspoof.h	38.91 KB	-rw-r--r--
usprep.h	8.02 KB	-rw-r--r--
ustdio.h	37.05 KB	-rw-r--r--
ustream.h	1.6 KB	-rw-r--r--
ustring.h	73.01 KB	-rw-r--r--
ustringtrie.h	3.04 KB	-rw-r--r--
utext.h	57.97 KB	-rw-r--r--
utf.h	7.64 KB	-rw-r--r--
utf16.h	18.24 KB	-rw-r--r--
utf32.h	653 B	-rw-r--r--
utf8.h	23.02 KB	-rw-r--r--
utf_old.h	42.5 KB	-rw-r--r--
utmscale.h	13.37 KB	-rw-r--r--
utrace.h	13.09 KB	-rw-r--r--
utrans.h	23.08 KB	-rw-r--r--
utypes.h	30.72 KB	-rw-r--r--
uvernum.h	5.53 KB	-rw-r--r--
uversion.h	6.29 KB	-rw-r--r--
vtzone.h	20.09 KB	-rw-r--r--

Code Editor : localpointer.h

/*
*******************************************************************************
*
*   Copyright (C) 2009-2012, International Business Machines
*   Corporation and others.  All Rights Reserved.
*
*******************************************************************************
*   file name:  localpointer.h
*   encoding:   US-ASCII
*   tab size:   8 (not used)
*   indentation:4
*
*   created on: 2009nov13
*   created by: Markus W. Scherer
*/

#ifndef __LOCALPOINTER_H__
#define __LOCALPOINTER_H__

/**
 * \file 
 * \brief C++ API: "Smart pointers" for use with and in ICU4C C++ code.
 *
 * These classes are inspired by
 * - std::auto_ptr
 * - boost::scoped_ptr & boost::scoped_array
 * - Taligent Safe Pointers (TOnlyPointerTo)
 *
 * but none of those provide for all of the goals for ICU smart pointers:
 * - Smart pointer owns the object and releases it when it goes out of scope.
 * - No transfer of ownership via copy/assignment to reduce misuse. Simpler & more robust.
 * - ICU-compatible: No exceptions.
 * - Need to be able to orphan/release the pointer and its ownership.
 * - Need variants for normal C++ object pointers, C++ arrays, and ICU C service objects.
 *
 * For details see http://site.icu-project.org/design/cpp/scoped_ptr
 */

#include "unicode/utypes.h"

#if U_SHOW_CPLUSPLUS_API

U_NAMESPACE_BEGIN

/**
 * "Smart pointer" base class; do not use directly: use LocalPointer etc.
 *
 * Base class for smart pointer classes that do not throw exceptions.
 *
 * Do not use this base class directly, since it does not delete its pointer.
 * A subclass must implement methods that delete the pointer:
 * Destructor and adoptInstead().
 *
 * There is no operator T *() provided because the programmer must decide
 * whether to use getAlias() (without transfer of ownership) or orpan()
 * (with transfer of ownership and NULLing of the pointer).
 *
 * @see LocalPointer
 * @see LocalArray
 * @see U_DEFINE_LOCAL_OPEN_POINTER
 * @stable ICU 4.4
 */
template<typename T>
class LocalPointerBase {
public:
    /**
     * Constructor takes ownership.
     * @param p simple pointer to an object that is adopted
     * @stable ICU 4.4
     */
    explicit LocalPointerBase(T *p=NULL) : ptr(p) {}
    /**
     * Destructor deletes the object it owns.
     * Subclass must override: Base class does nothing.
     * @stable ICU 4.4
     */
    ~LocalPointerBase() { /* delete ptr; */ }
    /**
     * NULL check.
     * @return TRUE if ==NULL
     * @stable ICU 4.4
     */
    UBool isNull() const { return ptr==NULL; }
    /**
     * NULL check.
     * @return TRUE if !=NULL
     * @stable ICU 4.4
     */
    UBool isValid() const { return ptr!=NULL; }
    /**
     * Comparison with a simple pointer, so that existing code
     * with ==NULL need not be changed.
     * @param other simple pointer for comparison
     * @return true if this pointer value equals other
     * @stable ICU 4.4
     */
    bool operator==(const T *other) const { return ptr==other; }
    /**
     * Comparison with a simple pointer, so that existing code
     * with !=NULL need not be changed.
     * @param other simple pointer for comparison
     * @return true if this pointer value differs from other
     * @stable ICU 4.4
     */
    bool operator!=(const T *other) const { return ptr!=other; }
    /**
     * Access without ownership change.
     * @return the pointer value
     * @stable ICU 4.4
     */
    T *getAlias() const { return ptr; }
    /**
     * Access without ownership change.
     * @return the pointer value as a reference
     * @stable ICU 4.4
     */
    T &operator*() const { return *ptr; }
    /**
     * Access without ownership change.
     * @return the pointer value
     * @stable ICU 4.4
     */
    T *operator->() const { return ptr; }
    /**
     * Gives up ownership; the internal pointer becomes NULL.
     * @return the pointer value;
     *         caller becomes responsible for deleting the object
     * @stable ICU 4.4
     */
    T *orphan() {
        T *p=ptr;
        ptr=NULL;
        return p;
    }
    /**
     * Deletes the object it owns,
     * and adopts (takes ownership of) the one passed in.
     * Subclass must override: Base class does not delete the object.
     * @param p simple pointer to an object that is adopted
     * @stable ICU 4.4
     */
    void adoptInstead(T *p) {
        // delete ptr;
        ptr=p;
    }
protected:
    /**
     * Actual pointer.
     * @internal
     */
    T *ptr;
private:
    // No comparison operators with other LocalPointerBases.
    bool operator==(const LocalPointerBase &other);
    bool operator!=(const LocalPointerBase &other);
    // No ownership transfer: No copy constructor, no assignment operator.
    LocalPointerBase(const LocalPointerBase &other);
    void operator=(const LocalPointerBase &other);
    // No heap allocation. Use only on the stack.
    static void * U_EXPORT2 operator new(size_t size);
    static void * U_EXPORT2 operator new[](size_t size);
#if U_HAVE_PLACEMENT_NEW
    static void * U_EXPORT2 operator new(size_t, void *ptr);
#endif
};

/**
 * "Smart pointer" class, deletes objects via the standard C++ delete operator.
 * For most methods see the LocalPointerBase base class.
 *
 * Usage example:
 * \code
 * LocalPointer<UnicodeString> s(new UnicodeString((UChar32)0x50005));
 * int32_t length=s->length();  // 2
 * UChar lead=s->charAt(0);  // 0xd900
 * if(some condition) { return; }  // no need to explicitly delete the pointer
 * s.adoptInstead(new UnicodeString((UChar)0xfffc));
 * length=s->length();  // 1
 * // no need to explicitly delete the pointer
 * \endcode
 *
 * @see LocalPointerBase
 * @stable ICU 4.4
 */
template<typename T>
class LocalPointer : public LocalPointerBase<T> {
public:
    /**
     * Constructor takes ownership.
     * @param p simple pointer to an object that is adopted
     * @stable ICU 4.4
     */
    explicit LocalPointer(T *p=NULL) : LocalPointerBase<T>(p) {}
    /**
     * Destructor deletes the object it owns.
     * @stable ICU 4.4
     */
    ~LocalPointer() {
        delete LocalPointerBase<T>::ptr;
    }
    /**
     * Deletes the object it owns,
     * and adopts (takes ownership of) the one passed in.
     * @param p simple pointer to an object that is adopted
     * @stable ICU 4.4
     */
    void adoptInstead(T *p) {
        delete LocalPointerBase<T>::ptr;
        LocalPointerBase<T>::ptr=p;
    }
};

/**
 * "Smart pointer" class, deletes objects via the C++ array delete[] operator.
 * For most methods see the LocalPointerBase base class.
 * Adds operator[] for array item access.
 *
 * Usage example:
 * \code
 * LocalArray<UnicodeString> a(new UnicodeString[2]);
 * a[0].append((UChar)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();
 * // no need to explicitly delete the array
 * \endcode
 *
 * @see LocalPointerBase
 * @stable ICU 4.4
 */
template<typename T>
class LocalArray : public LocalPointerBase<T> {
public:
    /**
     * Constructor takes ownership.
     * @param p simple pointer to an array of T objects that is adopted
     * @stable ICU 4.4
     */
    explicit LocalArray(T *p=NULL) : LocalPointerBase<T>(p) {}
    /**
     * Destructor deletes the array it owns.
     * @stable ICU 4.4
     */
    ~LocalArray() {
        delete[] LocalPointerBase<T>::ptr;
    }
    /**
     * 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
     * @stable ICU 4.4
     */
    void adoptInstead(T *p) {
        delete[] LocalPointerBase<T>::ptr;
        LocalPointerBase<T>::ptr=p;
    }
    /**
     * Array item access (writable).
     * No index bounds check.
     * @param i array index
     * @return reference to the array item
     * @stable ICU 4.4
     */
    T &operator[](ptrdiff_t i) const { return LocalPointerBase<T>::ptr[i]; }
};

/**
 * \def U_DEFINE_LOCAL_OPEN_POINTER
 * "Smart pointer" definition macro, deletes objects via the closeFunction.
 * Defines a subclass of LocalPointerBase which works just
 * 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));
 * utf8OutLength=ucasemap_utf8ToLower(csm.getAlias(),
 *     utf8Out, (int32_t)sizeof(utf8Out),
 *     utf8In, utf8InLength, &errorCode);
 * if(U_FAILURE(errorCode)) { return; }  // no need to explicitly delete the UCaseMap
 * \endcode
 *
 * @see LocalPointerBase
 * @see LocalPointer
 * @stable ICU 4.4
 */
#define U_DEFINE_LOCAL_OPEN_POINTER(LocalPointerClassName, Type, closeFunction) \
    class LocalPointerClassName : public LocalPointerBase<Type> { \
    public: \
        explicit LocalPointerClassName(Type *p=NULL) : LocalPointerBase<Type>(p) {} \
        ~LocalPointerClassName() { closeFunction(ptr); } \
        void adoptInstead(Type *p) { \
            closeFunction(ptr); \
            ptr=p; \
        } \
    }

U_NAMESPACE_END

#endif  /* U_SHOW_CPLUSPLUS_API */
#endif  /* __LOCALPOINTER_H__ */

${this.title}

Code Editor : localpointer.h