Use Py_ssize_t to count the

Python/bltinmodule.c

@@ -193,8 +193,8 @@ static PyObject *
 builtin_filter(PyObject *self, PyObject *args)
 {
 	PyObject *func, *seq, *result, *it, *arg;
-	int len;   /* guess for result list size */
-	register int j;
+	Py_ssize_t len;   /* guess for result list size */
+	register Py_ssize_t j;
 
 	if (!PyArg_UnpackTuple(args, "filter", 2, 2, &func, &seq))
 		return NULL;
@@ -860,7 +860,7 @@ builtin_map(PyObject *self, PyObject *args)
 	len = 0;
 	for (i = 0, sqp = seqs; i < n; ++i, ++sqp) {
 		PyObject *curseq;
-		int curlen;
+		Py_ssize_t curlen;
 
 		/* Get iterator. */
 		curseq = PyTuple_GetItem(args, i+1);
@@ -1338,7 +1338,7 @@ static PyObject *
 builtin_ord(PyObject *self, PyObject* obj)
 {
 	long ord;
-	int size;
+	Py_ssize_t size;
 
 	if (PyString_Check(obj)) {
 		size = PyString_GET_SIZE(obj);
@@ -1363,7 +1363,7 @@ builtin_ord(PyObject *self, PyObject* obj)
 
 	PyErr_Format(PyExc_TypeError,
 		     "ord() expected a character, "
-		     "but string of length %d found",
+		     "but string of length %zd found",
 		     size);
 	return NULL;
 }
@@ -2094,10 +2094,10 @@ static PyObject*
 builtin_zip(PyObject *self, PyObject *args)
 {
 	PyObject *ret;
-	const int itemsize = PySequence_Length(args);
-	int i;
+	const Py_ssize_t itemsize = PySequence_Length(args);
+	Py_ssize_t i;
 	PyObject *itlist;  /* tuple of iterators */
-	int len;	   /* guess at result length */
+	Py_ssize_t len;	   /* guess at result length */
 
 	if (itemsize == 0)
 		return PyList_New(0);
@@ -2111,7 +2111,7 @@ builtin_zip(PyObject *self, PyObject *args)
 	len = -1;	/* unknown */
 	for (i = 0; i < itemsize; ++i) {
 		PyObject *item = PyTuple_GET_ITEM(args, i);
-		int thislen = _PyObject_LengthHint(item);
+		Py_ssize_t thislen = _PyObject_LengthHint(item);
 		if (thislen < 0) {
 			if (!PyErr_ExceptionMatches(PyExc_TypeError)  &&
 			    !PyErr_ExceptionMatches(PyExc_AttributeError)) {
@@ -2460,7 +2460,7 @@ filterstring(PyObject *func, PyObject *strobj)
 			Py_DECREF(good);
 		}
 		if (ok) {
-			int reslen;
+			Py_ssize_t reslen;
 			if (!PyString_Check(item)) {
 				PyErr_SetString(PyExc_TypeError, "can't filter str to str:"
 					" __getitem__ returned different type");
@@ -2473,7 +2473,7 @@ filterstring(PyObject *func, PyObject *strobj)
 					PyString_AS_STRING(item)[0];
 			} else {
 				/* do we need more space? */
-				int need = j + reslen + len-i-1;
+				Py_ssize_t need = j + reslen + len-i-1;
 				if (need > outlen) {
 					/* overallocate, to avoid reallocations */
 					if (need<2*outlen)
@@ -2513,8 +2513,8 @@ filterunicode(PyObject *func, PyObject *strobj)
 {
 	PyObject *result;
 	register int i, j;
-	int len = PyUnicode_GetSize(strobj);
-	int outlen = len;
+	Py_ssize_t len = PyUnicode_GetSize(strobj);
+	Py_ssize_t outlen = len;
 
 	if (func == Py_None) {
 		/* If it's a real string we can return the original,
@@ -2554,7 +2554,7 @@ filterunicode(PyObject *func, PyObject *strobj)
 			Py_DECREF(good);
 		}
 		if (ok) {
-			int reslen;
+			Py_ssize_t reslen;
 			if (!PyUnicode_Check(item)) {
 				PyErr_SetString(PyExc_TypeError,
 				"can't filter unicode to unicode:"
@@ -2568,7 +2568,7 @@ filterunicode(PyObject *func, PyObject *strobj)
 					PyUnicode_AS_UNICODE(item)[0];
 			else {
 				/* do we need more space? */
-				int need = j + reslen + len - i - 1;
+				Py_ssize_t need = j + reslen + len - i - 1;
 				if (need > outlen) {
 					/* overallocate,
 					   to avoid reallocations */

Python/errors.c

@@ -83,7 +83,7 @@ PyErr_GivenExceptionMatches(PyObject *err, PyObject *exc)
 		return 0;
 	}
 	if (PyTuple_Check(exc)) {
-		int i, n;
+		Py_ssize_t i, n;
 		n = PyTuple_Size(exc);
 		for (i = 0; i < n; i++) {
 			/* Test recursively */

Python/getargs.c

@@ -153,7 +153,7 @@ cleanreturn(int retval, PyObject *freelist)
 {
 	if(freelist) {
 		if((retval) == 0) {
-			int len = PyList_GET_SIZE(freelist), i;
+			Py_ssize_t len = PyList_GET_SIZE(freelist), i;
 			for (i = 0; i < len; i++)
                                 PyMem_FREE(PyCObject_AsVoidPtr(
                                 		PyList_GET_ITEM(freelist, i)));
@@ -176,7 +176,7 @@ vgetargs1(PyObject *args, const char *format, va_list *p_va, int flags)
 	int level = 0;
 	int endfmt = 0;
 	const char *formatsave = format;
-	int i, len;
+	Py_ssize_t i, len;
 	char *msg;
 	PyObject *freelist = NULL;
 	int compat = flags & FLAG_COMPAT;

Python/modsupport.c

@@ -315,7 +315,7 @@ do_mkvalue(const char **p_format, va_list *p_va)
 		
 		case 'n':
 #if SIZEOF_SIZE_T!=SIZEOF_LONG
-			return PyLong_FromSsize_t(va_arg(*p_va, Py_Ssize_t));
+			return PyInt_FromSsize_t(va_arg(*p_va, Py_ssize_t));
 #endif
 			/* Fall through from 'n' to 'l' if Py_ssize_t is long */
 		case 'l':

Python/symtable.c

@@ -715,7 +715,7 @@ symtable_warn(struct symtable *st, char *msg, int lineno)
 static int
 symtable_exit_block(struct symtable *st, void *ast)
 {
-	int end;
+	Py_ssize_t end;
 
 	Py_DECREF(st->st_cur);
 	end = PyList_GET_SIZE(st->st_stack) - 1;

Python/sysmodule.c

@@ -947,7 +947,8 @@ static void
 svnversion_init(void)
 {
 	const char *python, *br_start, *br_end, *br_end2, *svnversion;
-	int len, istag;
+	Py_ssize_t len;
+	int istag;
 
 	if (svn_initialized)
 		return;

Python/traceback.c

@@ -153,7 +153,8 @@ tb_displayline(PyObject *f, char *filename, int lineno, char *name)
 			tail++;
 		path = PySys_GetObject("path");
 		if (path != NULL && PyList_Check(path)) {
-			int npath = PyList_Size(path);
+			Py_ssize_t _npath = PyList_Size(path);
+			int npath = Py_SAFE_DOWNCAST(_npath, Py_ssize_t, int);
 			size_t taillen = strlen(tail);
 			char namebuf[MAXPATHLEN+1];
 			for (i = 0; i < npath; i++) {