[Xcb] [PATCH xpyb 06/10] iter.c: Delete explicit comparison with NULL

[Tapasweni Pathak]

if (pointer == NULL) is functionally equivalent to
if (!pointer).

Using the second will make it a bit obvious that there is a
pointer involved and not an integer or something.

This patch deletes explicit comaprison with NULL in iter.c file.

Signed-off-by: Tapasweni Pathak <tapaswenipathak at gmail.com>
---
 src/iter.c |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/iter.c b/src/iter.c
index 5368f24..138a214 100644
--- a/src/iter.c
+++ b/src/iter.c
@@ -27,7 +27,7 @@ xpybIter_pop(xpybIter *self)
     cur = PyList_GET_ITEM(self->stack, self->top);
     item = PyIter_Next(cur);

-    if (item == NULL) {
+    if (!item) {
 	if (PyErr_Occurred() || self->top < 1)
 	    return NULL;
 	if (PyList_SetSlice(self->stack, self->top, self->top + 1, NULL) < 0)
@@ -38,7 +38,7 @@ xpybIter_pop(xpybIter *self)

     if (PySequence_Check(item)) {
 	next = PyObject_GetIter(item);
-	if (next == NULL)
+	if (!next)
 	    goto err1;
 	if (PyList_Append(self->stack, next) < 0)
 	    goto err2;
@@ -92,11 +92,11 @@ xpybIter_get(xpybIter *self)
     Py_CLEAR(self->stack);

     self->stack = PyList_New(1);
-    if (self->stack == NULL)
+    if (!self->stack)
 	return NULL;

     iterator = PyObject_GetIter(self->list);
-    if (iterator == NULL)
+    if (!iterator)
 	return NULL;

     PyList_SET_ITEM(self->stack, 0, iterator);
@@ -113,12 +113,12 @@ xpybIter_next(xpybIter *self)
     Py_ssize_t i;

     tuple = PyTuple_New(self->groupsize);
-    if (tuple == NULL)
+    if (!tuple)
 	return NULL;

     for (i = 0; i < self->groupsize; i++) {
 	tmp = xpybIter_pop(self);
-	if (tmp == NULL) {
+	if (!tmp) {
 	    if (i > 0 && !PyErr_Occurred())
 		xpybIter_err(self);
 	    goto end;
--
1.7.9.5