#ifndef NS_VEC_H
#define NS_VEC_H

#include <assert.h>
#include <stdlib.h>

#define ns_vec_gen(type)  \
  struct Vec_##type##_T { \
    type *arr;            \
    size_t len;           \
    size_t cap;           \
  };                      \
  typedef struct Vec_##type##_T Vec_##type;

#define ns_vec_init(type, vec, cap_)        \
  vec.len = 0;                              \
  vec.cap = cap_;                           \
  vec.arr = malloc(vec.cap * sizeof(type)); \
  assert(vec.arr != NULL);

#define ns_vec_push(type, vec, obj)                     \
  if (vec.len + 1 > vec.cap) {                          \
    vec.cap += 8;                                       \
    vec.arr = realloc(vec.arr, vec.cap * sizeof(type)); \
    assert(vec.arr != NULL);                            \
  }                                                     \
  vec.arr[vec.len] = obj;                               \
  vec.len++;

#define ns_vec_destroy(vec) \
  free(vec.arr);            \
  vec.arr = NULL;

#endif