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#include "Python.h"

#include "asdl.h"

asdl_seq *

_Py_asdl_seq_new(Py_ssize_t size, PyArena *arena)

{

asdl_seq *seq = NULL;

size_t n;

/* check size is sane */

if (size < 0 ||

(size && (((size_t)size - 1) > (SIZE_MAX / sizeof(void *))))) {

PyErr_NoMemory();

return NULL;

}

n = (size ? (sizeof(void *) * (size - 1)) : 0);

/* check if size can be added safely */

if (n > SIZE_MAX - sizeof(asdl_seq)) {

PyErr_NoMemory();

return NULL;

}

n += sizeof(asdl_seq);

seq = (asdl_seq *)PyArena_Malloc(arena, n);

if (!seq) {

PyErr_NoMemory();

return NULL;

}

memset(seq, 0, n);

seq->size = size;

return seq;

}

asdl_int_seq *

_Py_asdl_int_seq_new(Py_ssize_t size, PyArena *arena)

{

asdl_int_seq *seq = NULL;

size_t n;

/* check size is sane */

if (size < 0 ||

(size && (((size_t)size - 1) > (SIZE_MAX / sizeof(void *))))) {

PyErr_NoMemory();

return NULL;

}

n = (size ? (sizeof(void *) * (size - 1)) : 0);

/* check if size can be added safely */

if (n > SIZE_MAX - sizeof(asdl_seq)) {

PyErr_NoMemory();

return NULL;

}

n += sizeof(asdl_seq);

seq = (asdl_int_seq *)PyArena_Malloc(arena, n);

if (!seq) {

PyErr_NoMemory();

return NULL;

}

memset(seq, 0, n);

seq->size = size;

return seq;

}