EffectiveSTL/Vector And String

�� 많�� 는 vector, string�� 모��. ��1�� 부��는 모르는 내��(�� ..)�� 많�� 뛰��.

Contents

1. Item13. Prefer vector and string to dynamically allocated arrays.

1.1. new/delete �� 문��
1.2. vector/string �� 면 ��
1.3. �� 볼��들

2. Item14. Use reserve to avoid unnecessary reallocations.

2.1. vector/string�� 메모리�� 더 ��는 ��
2.2. ��릴�� 는 �� 메��들
2.3. ��를 �� 면 reserve 메��를 ��.

3. Item15. Be aware of variations in string implementations.

4. Item16. Know how to pass vector and string data to legacy APIS

5. Item17. Use 'the swap trick' to trim excess capacity.

6. Item18. Avoid using vector<bool>.

1. Item13. Prefer vector and string to dynamically allocated arrays. ¶

1.1. new/delete �� 문�� ¶

new ��면 delete �� 는 번��.
delete [] �� delete 를 �� . ��못 ��면 무�� 벌�� 모��.
��번 delete�� 메모리를 �� delete��면 "��못�� ... " �� 러�� 모��.

1.2. vector/string �� 면 �� ¶

�� 메모리 ��리 ��.(��)
�� .(�� )
배�� 는 �� .
char*�� .

1.3. �� 볼��들 ¶

reference count��는 �� 는데.. 뭐��는 ��.. �� 변�� 는��?--a AfterCheck
멀�� 는 ��른 �� 복��므�� 는데.. �� ..--;

2. Item14. Use reserve to avoid unnecessary reallocations. ¶

2.1. vector/string�� 메모리�� 더 ��는 �� ¶

�� 메모리를 ��.(�� 배 ��.)
��본 �� 들�� 롭�� 메모리�� .
��본 �� 들�� .
��본 �� 메모리를 ��.

2.2. ��릴�� 는 �� 메��들 ¶

size() - �� 들�� 는 �� .(��대량 ��)
capacity() - �� 는 메모리�� 대 �� 는 ��
resize(n) - n�� 메모리 ��
- n�� size()보�� 면 - ��부�� size() - n 만�� .
- n�� size()보�� 면 - ��부�� n - size() 만�� 빈 �� .
- n�� capacity()보�� 면 - 메모리 ��.
reserve() - �� capacity를 �� n�� .
- vector�� 만�� capacity보�� n�� 면? - ��.
- string��는 ? �� 모른��.(--;)

2.3. ��를 �� 면 reserve 메��를 ��. ¶

reserve를 ��면 ��, ��복��, ��, �� 등등�� .
reserve�� 놓�� trim() ��. 빈�� .

3. Item15. Be aware of variations in string implementations. ¶

4. Item16. Know how to pass vector and string data to legacy APIS ¶

5. Item17. Use 'the swap trick' to trim excess capacity. ¶

6. Item18. Avoid using vector<bool>. ¶

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