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#include "vector.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#define START_SIZE 64;
struct vector {
void **base;
int end, limit;
};
void vec_debug_print(root)
vec *root;
{
int i;
fprintf(stderr, "VEC[base: %p, end: %p, limit:%p]:\n\t ",
root->base, root->end, root->limit);
for (i=0; i < root->end; i++){
fprintf(stderr, "[%p]", vec_index(root,i));
}
fprintf(stderr, "\n");
}
vec* vec_new()
{
vec *root;
root = malloc(sizeof(vec));
assert(root);
root->limit = START_SIZE;
root->base = malloc(root->limit * sizeof(void*));
assert(root->base);
return root;
}
vec* vec_with_capacity(n)
int n;
{
vec *root;
root = malloc(sizeof(vec));
assert(root);
root->limit = n;
root->base = malloc(root->limit * sizeof(void*));
assert(root->base);
return root;
}
int vec_size(root)
vec *root;
{
if (!root) {
return -1;
}
return root->end;
}
int vec_capacity(root)
vec *root;
{
if (!root) {
return -1;
}
return root->limit;
}
void vec_resize(root)
vec *root;
{
if (!root)
return;
root->base = reallocarray(root->base, root->limit * 2, sizeof(void*));
assert(root->base);
}
vec* vec_cp(root)
vec *root;
{
vec *copy;
if (!root)
return NULL;
copy = vec_with_capacity(root->limit);
copy->base = memcpy(copy->base, root->base,
vec_size(root) * sizeof(void*));
assert(copy->base);
copy->end = root->end;
copy->limit = root->limit;
return copy;
}
void vec_print(root, to_string)
vec *root;
char* to_string(void*);
{
int i;
printf("[");
for(i = 0; i < root->end; i++) {
printf("%s", to_string(vec_index(root, i)));
}
printf("\b]\n");
}
void vec_push(root, item)
vec *root;
void *item;
{
if (!root) {
return;
}
if (root->end >= root->limit) {
vec_resize(root);
}
root->base[root->end++] = item;
}
void* vec_pop(root)
vec *root;
{
if (!root || root->end == 0) {
return NULL;
}
return root->base[--root->end];
}
void* vec_back(root)
vec *root;
{
if (!root || root->end == 0) {
return NULL;
}
return root->base[root->end - 1];
}
void vec_set(root, index, item)
vec *root;
int index;
void *item;
{
if (!root || index >= root->end || index < 0)
return;
root->base[index] = item;
}
void* vec_index(root, index)
vec *root;
int index;
{
if (!root || index >= root->end || index < 0) {
return NULL;
}
return root->base[index];
}
void vec_swap(root, i, j)
vec *root;
int i,j;
{
void *tmp;
if (!root || i >= root->end || i < 0 || j >= root->end || j < 0)
return;
tmp = root->base[i];
root->base[i] = root->base[j];
root->base[j] = tmp;
return;
}
void vec_clear(root)
vec *root;
{
int i;
for (i = 0; i < root->end; i++) {
free(vec_index(root, i));
}
root->end = 0;
}
void vec_free(root)
vec *root;
{
free(root->base);
root->base = NULL;
free(root);
}
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