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// RUN: %clang_analyze_cc1 -std=c++11 -analyzer-checker=core,osx -analyzer-output=text -verify %s
#include "../Inputs/system-header-simulator.h"
#include "../Inputs/system-header-simulator-cxx.h"
void testUnsignedIntMacro(unsigned int i) {
if (i == UINT32_MAX) { // expected-note {{Assuming 'i' is equal to UINT32_MAX}}
// expected-note@-1 {{Taking true branch}}
char *p = NULL; // expected-note {{'p' initialized to a null pointer value}}
*p = 7; // expected-warning {{Dereference of null pointer (loaded from variable 'p')}}
// expected-note@-1 {{Dereference of null pointer (loaded from variable 'p')}}
}
}
// FIXME: 'i' can never be equal to UINT32_MAX - it doesn't even fit into its
// type ('int'). This should say "Assuming 'i' is equal to -1".
void testIntMacro(int i) {
if (i == UINT32_MAX) { // expected-note {{Assuming 'i' is equal to UINT32_MAX}}
// expected-note@-1 {{Taking true branch}}
char *p = NULL; // expected-note {{'p' initialized to a null pointer value}}
*p = 7; // expected-warning {{Dereference of null pointer (loaded from variable 'p')}}
// expected-note@-1 {{Dereference of null pointer (loaded from variable 'p')}}
}
}
void testNULLMacro(int *p) {
if (p == NULL) { // expected-note {{Assuming 'p' is equal to NULL}}
// expected-note@-1 {{Taking true branch}}
*p = 7; // expected-warning {{Dereference of null pointer (loaded from variable 'p')}}
// expected-note@-1 {{Dereference of null pointer (loaded from variable 'p')}}
}
}
void testnullptrMacro(int *p) {
if (p == nullptr) { // expected-note {{Assuming pointer value is null}}
// expected-note@-1 {{Taking true branch}}
*p = 7; // expected-warning {{Dereference of null pointer (loaded from variable 'p')}}
// expected-note@-1 {{Dereference of null pointer (loaded from variable 'p')}}
}
}
// There are no path notes on the comparison to float types.
void testDoubleMacro(double d) {
if (d == DBL_MAX) { // expected-note {{Assuming 'd' is equal to DBL_MAX}}
// expected-note@-1 {{Taking true branch}}
char *p = NULL; // expected-note {{'p' initialized to a null pointer value}}
*p = 7; // expected-warning {{Dereference of null pointer (loaded from variable 'p')}}
// expected-note@-1 {{Dereference of null pointer (loaded from variable 'p')}}
}
}
void testboolMacro(bool b, int *p) {
p = nullptr; // expected-note {{Null pointer value stored to 'p'}}
if (b == false) { // expected-note {{Assuming the condition is true}}
// expected-note@-1 {{Taking true branch}}
*p = 7; // expected-warning {{Dereference of null pointer (loaded from variable 'p')}}
// expected-note@-1 {{Dereference of null pointer (loaded from variable 'p')}}
}
}
#define nested_null_split(x) if ((x) != UINT32_MAX) {}
void testNestedNullSplitMacro(int i, int *p) {
nested_null_split(i); // expected-note {{Assuming 'i' is equal to -1}}
// expected-note@-1 {{Taking false branch}}
if (!p) // expected-note {{Assuming 'p' is null}}
// expected-note@-1 {{Taking true branch}}
*p = 1; // expected-warning {{Dereference of null pointer (loaded from variable 'p')}}
// expected-note@-1 {{Dereference of null pointer (loaded from variable 'p')}}
}
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