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Code Issues Releases Activity

avutil/mem: replace remaining void **/*** casts by memcpy()

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This is similar to 60392480181f24ebf3ab48d8ac3614705de90152

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-02-01 15:16:15 +01:00
parent ed91c8651a
commit 63186ac5f1
1 changed files with 12 additions and 8 deletions

20
libavutil/mem.c

@ -307,11 +307,12 @@ void *av_memdup(const void *p, size_t size)
int av_dynarray_add_nofree(void *tab_ptr, int *nb_ptr, void *elem)
{
void **tab = *(void ***)tab_ptr;
void **tab;
memcpy(&tab, tab_ptr, sizeof(tab));
AV_DYNARRAY_ADD(INT_MAX, sizeof(*tab), tab, *nb_ptr, {
tab[*nb_ptr] = elem;
*(void ***)tab_ptr = tab;
memcpy(tab_ptr, &tab, sizeof(tab));
}, {
return AVERROR(ENOMEM);
});
@ -320,11 +321,12 @@ int av_dynarray_add_nofree(void *tab_ptr, int *nb_ptr, void *elem)
void av_dynarray_add(void *tab_ptr, int *nb_ptr, void *elem)
{
void **tab = *(void ***)tab_ptr;
void **tab;
memcpy(&tab, tab_ptr, sizeof(tab));
AV_DYNARRAY_ADD(INT_MAX, sizeof(*tab), tab, *nb_ptr, {
tab[*nb_ptr] = elem;
*(void ***)tab_ptr = tab;
memcpy(tab_ptr, &tab, sizeof(tab));
}, {
*nb_ptr = 0;
av_freep(tab_ptr);
@ -494,13 +496,15 @@ void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size)
static inline int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size, int zero_realloc)
{
void **p = ptr;
void *val;
if (min_size < *size)
return 0;
min_size = FFMAX(17 * min_size / 16 + 32, min_size);
av_free(*p);
*p = zero_realloc ? av_mallocz(min_size) : av_malloc(min_size);
if (!*p)
av_freep(ptr);
val = zero_realloc ? av_mallocz(min_size) : av_malloc(min_size);
memcpy(ptr, &val, sizeof(val));
if (!val)
min_size = 0;
*size = min_size;
return 1;