c vector, v2

#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>

typedef struct vct {
    float* data;
    size_t base;
    size_t capacity;
    size_t size;
} vct;

vct* vct_create(size_t capacity)
{
    vct* vector = malloc(sizeof(vct));
    vector->data = malloc(sizeof(float)*capacity);
    vector->base = 0;
    vector->capacity = capacity;
    vector->size = 0;
}

vct vct_destroy(vct* vector)
{
    free(vector->data - vector->base);
    free(vector);
}

void vct_push_back(vct* vector, float value)
{
    vector->data[vector->base + (vector->size++)] = value;
}

float vct_pop_back(vct* vector)
{
    return vector->data[vector->base + (--vector->size)];
}

float vct_pop_front(vct* vector)
{
    return vector->data[(vector->base++)];
}

int main()
{
    vct* vector = vct_create(100);

    for(int i=0; i<10; ++i) {
        vct_push_back(vector, i+10.2);
    }

    for(int i=vector->base; i<vector->size; i++) {
        printf("%f\n", vector->data[i]);
    }
    printf("popping: %f\n", vct_pop_back(vector));
    printf("popping: %f\n", vct_pop_back(vector));

    for(int i=vector->base; i<vector->size; i++) {
        printf("%f\n", vector->data[i]);
    }
}