Source

cpython / Python / asdl.c

#include "Python.h"
#include "asdl.h"

asdl_seq *
asdl_seq_new(int size, PyArena *arena)
{
	asdl_seq *seq = NULL;
	size_t n = (size ? (sizeof(void *) * (size - 1)) : 0);

	/* check size is sane */
	if (size < 0 || size == INT_MIN || 
		(size && ((size - 1) > (PY_SIZE_MAX / sizeof(void *))))) {
		PyErr_NoMemory();
		return NULL;
	}

	/* check if size can be added safely */
	if (n > PY_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 *
asdl_int_seq_new(int size, PyArena *arena)
{
	asdl_int_seq *seq = NULL;
	size_t n = (size ? (sizeof(void *) * (size - 1)) : 0);

	/* check size is sane */
	if (size < 0 || size == INT_MIN || 
		(size && ((size - 1) > (PY_SIZE_MAX / sizeof(void *))))) {
			PyErr_NoMemory();
			return NULL;
	}

	/* check if size can be added safely */
	if (n > PY_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;
}
Tip: Filter by directory path e.g. /media app.js to search for public/media/app.js.
Tip: Use camelCasing e.g. ProjME to search for ProjectModifiedEvent.java.
Tip: Filter by extension type e.g. /repo .js to search for all .js files in the /repo directory.
Tip: Separate your search with spaces e.g. /ssh pom.xml to search for src/ssh/pom.xml.
Tip: Use ↑ and ↓ arrow keys to navigate and return to view the file.
Tip: You can also navigate files with Ctrl+j (next) and Ctrl+k (previous) and view the file with Ctrl+o.
Tip: You can also navigate files with Alt+j (next) and Alt+k (previous) and view the file with Alt+o.