forked from OSchip/llvm-project
105 lines
2.1 KiB
C++
105 lines
2.1 KiB
C++
// RUN: %clang_analyze_cc1 -std=c++11 -analyzer-checker=core -analyzer-output=plist-multi-file -o %t.plist -verify -analyzer-config eagerly-assume=false %s
|
|
// RUN: %normalize_plist <%t.plist | diff -ub %S/Inputs/expected-plists/cxx-for-range.cpp.plist -
|
|
|
|
extern void work();
|
|
|
|
void testLoop() {
|
|
int z[] = {1,2};
|
|
for (int y : z) {
|
|
work();
|
|
work();
|
|
if (y == 2)
|
|
*(volatile int *)0 = 1; // expected-warning {{Dereference of null pointer}}
|
|
work();
|
|
work();
|
|
(void)y;
|
|
}
|
|
|
|
*(volatile int *)0 = 1; // no-warning
|
|
}
|
|
|
|
class MagicVector {
|
|
public:
|
|
MagicVector();
|
|
|
|
using iterator = int *;
|
|
|
|
iterator begin() const;
|
|
iterator end() const;
|
|
};
|
|
|
|
MagicVector get(bool fail = false) {
|
|
if (fail)
|
|
*(volatile int *)0 = 1; // expected-warning {{Dereference of null pointer}}
|
|
return MagicVector{};
|
|
}
|
|
|
|
void testLoopOpaqueCollection() {
|
|
for (int y : get()) {
|
|
work();
|
|
work();
|
|
if (y == 2)
|
|
*(volatile int *)0 = 1; // expected-warning {{Dereference of null pointer}}
|
|
work();
|
|
work();
|
|
(void)y;
|
|
}
|
|
|
|
*(volatile int *)0 = 1; // expected-warning {{Dereference of null pointer}}
|
|
}
|
|
|
|
|
|
class MagicVector2 {
|
|
public:
|
|
MagicVector2();
|
|
|
|
class iterator {
|
|
public:
|
|
int operator*() const;
|
|
iterator &operator++();
|
|
bool operator==(const iterator &);
|
|
bool operator!=(const iterator &);
|
|
};
|
|
|
|
iterator begin() const;
|
|
iterator end() const;
|
|
};
|
|
|
|
MagicVector2 get2() {
|
|
return MagicVector2{};
|
|
}
|
|
|
|
void testLoopOpaqueIterator() {
|
|
for (int y : get2()) {
|
|
work();
|
|
work();
|
|
if (y == 2)
|
|
*(volatile int *)0 = 1; // expected-warning {{Dereference of null pointer}}
|
|
work();
|
|
work();
|
|
(void)y;
|
|
}
|
|
|
|
*(volatile int *)0 = 1; // expected-warning {{Dereference of null pointer}}
|
|
}
|
|
|
|
|
|
void testLoopErrorInRange() {
|
|
for (int y : get(true)) { // error inside get()
|
|
work();
|
|
work();
|
|
if (y == 2)
|
|
*(volatile int *)0 = 1; // no-warning
|
|
work();
|
|
work();
|
|
(void)y;
|
|
}
|
|
|
|
*(volatile int *)0 = 1; // no-warning
|
|
}
|
|
|
|
void testForRangeInit() {
|
|
for (int *arr[3] = {nullptr, nullptr, nullptr}; int *p : arr) // expected-warning {{extension}}
|
|
*p = 1; // expected-warning {{Dereference of null pointer}}
|
|
}
|