有glibc附带的C的自动调整大小的数组/动态数组实现吗？ [英] Is there an auto-resizing array/dynamic array implementation for C that comes with glibc?

问题描述

在glibc或C的任何标准Linux库中是否有动态数组实现？我想要添加到列表中，而不用担心它的大小。我知道std :: vector存在于C ++，但是我需要C等价物。

Is there a dynamic array implementation in glibc or any of the standard Linux libraries for C? I want to be able to add to a list without worrying about its size. I know std::vector exists for C++, but I need the C equivalent.

推荐答案

我想你在想href =http://opengroup.org/onlinepubs/007908775/xsh/realloc.html =noreferrer> realloc 。但是最好在结构中包含列表以跟踪其当前的长度。

I guess you are thinking of realloc. But its better to wrap a list in a structure to keep track of its current length

示例API

struct s_dynamic_array {
    int allocated;   /* keep track of allocated size  */
    int usedLength;  /* keep track of usage           */
    int *array;      /* dynamicaly grown with realloc */
};
typedef struct s_dynamic_array s_dynamic_array;

s_dynamic_array *new_dynamic_array(int initalSize);
void             free_dynamic_array(s_dynamic_array *array);
int              size_of_dynamic_array(s_dynamic_array *array);
s_dynamic_array *add_int_to_dynamic_array(s_dynamic_array *array, int value);
int              int_at_index(s_dynamic_array *array, int index);

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