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Call NULL by its name

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In variadic functions we still do the cast.  In POSIX, it's not
necessary, since NULL is required to be of type 'void *', and 'void *'
is guaranteed to have the same alignment and representation as 'char *'.
However, since ISO C still doesn't mandate that, and moreover they're
doing dubious stuff by adding nullptr, let's be on the cautious side.
Also, C++ requires that NULL is _not_ 'void *', but either plain 0 or
some magic stuff.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
This commit is contained in:
Alejandro Colomar
2023-02-02 13:08:30 -06:00
committed by Serge Hallyn
parent 1482224c54
commit 62172f6fb5
31 changed files with 84 additions and 84 deletions
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libmisc/list.c
+9 -9
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@@ -33,7 +33,7 @@
* pointer if it is present.
*/
for (i = 0; list[i] != (char *) 0; i++) {
for (i = 0; list[i] != NULL; i++) {
if (strcmp (list[i], member) == 0) {
return list;
}
@@ -52,12 +52,12 @@
* is returned to the invoker.
*/
for (i = 0; list[i] != (char *) 0; i++) {
for (i = 0; list[i] != NULL; i++) {
tmp[i] = list[i];
}
tmp[i] = xstrdup (member);
tmp[i+1] = (char *) 0;
tmp[i+1] = NULL;
return tmp;
}
@@ -83,7 +83,7 @@
* pointer if it is not present.
*/
for (i = j = 0; list[i] != (char *) 0; i++) {
for (i = j = 0; list[i] != NULL; i++) {
if (strcmp (list[i], member) != 0) {
j++;
}
@@ -106,14 +106,14 @@
* is returned to the invoker.
*/
for (i = j = 0; list[i] != (char *) 0; i++) {
for (i = j = 0; list[i] != NULL; i++) {
if (strcmp (list[i], member) != 0) {
tmp[j] = list[i];
j++;
}
}
tmp[j] = (char *) 0;
tmp[j] = NULL;
return tmp;
}
@@ -142,7 +142,7 @@
list++;
}
tmp[i] = (char *) 0;
tmp[i] = NULL;
return tmp;
}
@@ -217,7 +217,7 @@ bool is_on_list (char *const *list, const char *member)
*/
if ('\0' == *members) {
*array = (char *) 0;
*array = NULL;
free (members);
return array;
}
@@ -235,7 +235,7 @@ bool is_on_list (char *const *list, const char *member)
cp2++;
cp = cp2;
} else {
array[i + 1] = (char *) 0;
array[i + 1] = NULL;
break;
}
}