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/*

* Copyright (C) 2009 The Android Open Source Project

*

* 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

*

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an "AS IS" BASIS,

* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

* See the License for the specific language governing permissions and

* limitations under the License.

*/

//

// Sortable array of strings. STL-ish, but STL-free.

//

#ifndef _LIBS_UTILS_STRING_ARRAY_H

#define _LIBS_UTILS_STRING_ARRAY_H

#include <stdlib.h>

#include <string.h>

namespace android {

//

// An expanding array of strings. Add, get, sort, delete.

//

class StringArray {

public:

StringArray();

virtual ~StringArray();

//

// Add a string. A copy of the string is made.

//

bool push_back(const char* str);

//

// Delete an entry.

//

void erase(int idx);

//

// Sort the array.

//

void sort(int (*compare)(const void*, const void*));

//

// Pass this to the sort routine to do an ascending alphabetical sort.

//

static int cmpAscendingAlpha(const void* pstr1, const void* pstr2);

//

// Get the #of items in the array.

//

inline int size(void) const { return mCurrent; }

//

// Return entry N.

// [should use operator[] here]

//

const char* getEntry(int idx) const {

return (unsigned(idx) >= unsigned(mCurrent)) ? NULL : mArray[idx];

}

//

// Set entry N to specified string.

// [should use operator[] here]

//

void setEntry(int idx, const char* str);

private:

int mMax;

int mCurrent;

char** mArray;

};

}; // namespace android

#endif // _LIBS_UTILS_STRING_ARRAY_H