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Merge branch 'bugfix/realloc' into 'master'

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modify realloc behaves

 modify realloc behaves just like malloc when pass a null pointer for ptr.

See merge request !66
This commit is contained in:
Jeroen Domburg 2016-09-12 17:08:57 +08:00
commit fe3380d32e
1 changed files with 10 additions and 3 deletions
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13
components/esp32/syscalls.c
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@ -44,10 +44,17 @@ void _free_r(struct _reent *r, void* ptr) {
return vPortFree(ptr);
}
// TODO: improve realloc to grow buffer in place if possible
void* _realloc_r(struct _reent *r, void* ptr, size_t size) {
void* new_chunk = pvPortMalloc(size);
if (new_chunk) {
void* new_chunk;
if (size == 0) {
if (ptr) {
vPortFree(ptr);
}
return NULL;
}
new_chunk = pvPortMalloc(size);
if (new_chunk && ptr) {
memcpy(new_chunk, ptr, size);
vPortFree(ptr);
}