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#include "dynarray.h"
#include <stdlib.h>
#include <limits.h>
void
dynarray_init( dynarray_t *a )
{
a->count = a->capacity = 0;
a->items = NULL;
}
static void
dynarray_reserve_more( dynarray_t *a, int count )
{
int old_cap = a->capacity;
int new_cap = old_cap;
const int max_cap = INT_MAX/sizeof(void*);
void** new_items;
int new_count = a->count + count;
if (count <= 0)
return;
if (count > max_cap - a->count)
abort();
new_count = a->count + count;
while (new_cap < new_count) {
old_cap = new_cap;
new_cap += (new_cap >> 2) + 4;
if (new_cap < old_cap || new_cap > max_cap) {
new_cap = max_cap;
}
}
new_items = realloc(a->items, new_cap*sizeof(void*));
if (new_items == NULL)
abort();
a->items = new_items;
a->capacity = new_cap;
}
void
dynarray_append( dynarray_t *a, void* item )
{
if (a->count >= a->capacity)
dynarray_reserve_more(a, 1);
a->items[a->count++] = item;
}
void
dynarray_done( dynarray_t *a )
{
free(a->items);
a->items = NULL;
a->count = a->capacity = 0;
}
// string arrays
void strlist_init( strlist_t *list )
{
dynarray_init(list);
}
void strlist_append_b( strlist_t *list, const void* str, size_t slen )
{
char *copy = malloc(slen+1);
memcpy(copy, str, slen);
copy[slen] = '\0';
dynarray_append(list, copy);
}
void strlist_append_dup( strlist_t *list, const char *str)
{
strlist_append_b(list, str, strlen(str));
}
void strlist_done( strlist_t *list )
{
STRLIST_FOREACH(list, string, free(string));
dynarray_done(list);
}
static int strlist_compare_strings(const void* a, const void* b)
{
const char *sa = *(const char **)a;
const char *sb = *(const char **)b;
return strcmp(sa, sb);
}
void strlist_sort( strlist_t *list )
{
if (list->count > 0) {
qsort(list->items,
(size_t)list->count,
sizeof(void*),
strlist_compare_strings);
}
}
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