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#include <stdlib.h>
#include "allocator.h"
/* Interface Code */
static void *
default_allocate(struct its1_allocator *allocator, size_t n)
{
(void) allocator;
return malloc(n);
}
static void
default_deallocate(struct its1_allocator *allocator, void *ptr)
{
(void) allocator;
free(ptr);
}
struct its1_allocator its1_default_allocator = {
.allocate = &default_allocate,
.deallocate = &default_deallocate
};
/* Libary Code */
#include <string.h>
void *
its1_malloc(struct its1_allocator *allocator, size_t n)
{
if (allocator == NULL) {
allocator = &its1_default_allocator;
}
return allocator->allocate(allocator, n);
}
void
its1_free(struct its1_allocator *allocator, void *ptr)
{
if (allocator == NULL) {
allocator = &its1_default_allocator;
}
allocator->deallocate(allocator, ptr);
}
char *
its1_strdup(struct its1_allocator *allocator, const char *str)
{
size_t n;
char *dest;
n = strlen(str) + 1;
dest = its1_malloc(allocator, n);
if (dest != NULL) {
memcpy(dest, str, n);
}
return dest;
}
void *
its1_malloc_zero(struct its1_allocator *allocator, size_t n)
{
void *ptr;
ptr = its1_malloc(allocator, n);
if (ptr != NULL) {
memset(ptr, 0, n);
}
return ptr;
}
int main() {}
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