A good C equivalent of STL vector?

Question

I\'ve noticed that at several places in our code base we use dynamically expanding arrays, i.e. a base array coupled with an element counter and a \"max elements\" value.

Answer 1

qLibc implements a vector in pure C. The data structure allows it to store any type of object like (void *object) and it provides convenient wrappers for string, formatted string and integer types.

Here's a sample code for your idea.

qvector_t *vector = qvector(QVECTOR_OPT_THREADSAFE);
vector->addstr(vector, "Hello");
vector->addstrf(vector, "World %d", 123);
char *finalstring = vector->tostring(vector);

printf("%s", finalstring);
free(finalstring)
vector->free(vector);

for object type:

int a = 1, b = 2;
qvector_t *vector = qvector(QVECTOR_OPT_THREADSAFE);
vector->add(vector, (void *)&a, sizeof(int));
vector->add(vector, (void *)&b, sizeof(int));
int *finalarray = vector->toarray(vector);

printf("a = %d, b = %d", finalarray[0], finalarray[1]);
free(finalarray)
vector->free(vector);

Note) I made this sample code just for your reference, copying from its example code. it might have typo errors.

You can check out the Full API reference at http://wolkykim.github.io/qlibc/