forked from OSchip/llvm-project
3bb8b56a5d
null comparison when the pointer is known to be non-null.
This catches the array to pointer decay, function to pointer decay and
address of variables. This does not catch address of function since this
has been previously used to silence a warning.
Pointer to bool conversion is under -Wbool-conversion.
Pointer to null comparison is under -Wtautological-pointer-compare, a sub-group
of -Wtautological-compare.
void foo() {
int arr[5];
int x;
// warn on these conditionals
if (foo);
if (arr);
if (&x);
if (foo == null);
if (arr == null);
if (&x == null);
if (&foo); // no warning
}
llvm-svn: 202216
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|---|---|---|
| .. | ||
| expr.ass | ||
| expr.cast | ||
| expr.const | ||
| expr.mptr.oper | ||
| expr.post | ||
| expr.prim | ||
| expr.unary | ||
| p3.cpp | ||
| p8.cpp | ||
| p9.cpp | ||
| p10-0x.cpp | ||