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vim stash.h
#ifndef STASH_H
#define STASH_H
typedef struct STASHTag {
int size; /* Size of each space */
int quantity; /* Number of storage spaces */
int next; /* Next empty space */
/* Dynamically allocated array of bytes: */
unsigned char* storage;
} Stash;
void initialize(Stash* S, int Size);
void cleanup(Stash* S);
int add(Stash* S, void* element);
void* fetch(Stash* S, int index);
int count(Stash* S);
void inflate(Stash* S, int increase);
#endif //STASH_H
vim stash.c
/* Error testing macros: */
#include <assert.h>
/* Dynamic memory allocation functions: */
#include <stdlib.h>
#include <string.h> /* memcpy() */
#include <stdio.h>
#include "stash.h"
#define STEP 10
void initialize(Stash* S, int Size) {
S->size = Size;
S->quantity = 0;
S->storage = 0;
S->next = 0;
}
void cleanup(Stash* S) {
if(S->storage) {
puts("freeing storage");
free(S->storage);
}
}
int add(Stash* S, void* element) {
/* enough space left? */
if(S->next >= S->quantity)
inflate(S, STEP);
/* Copy element into storage,
starting at next empty space: */
memcpy(&(S->storage[S->next * S->size]),
element, S->size);
S->next++;
return(S->next - 1); /* Index number */
}
void* fetch(Stash* S, int index) {
if(index >= S->next || index < 0)
return 0; /* Not out of bounds? */
/* Produce pointer to desired element: */
// return &(S->storage[index * S->size]);
return (S->storage+index*S->size);
}
int count(Stash* S) {
/* Number of elements in stash */
return S->next;
}
void inflate(Stash* S, int increase) {
void* v =
realloc
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