llvm-project/clang/test/Analysis/casts.m

23 lines
779 B
Objective-C

// RUN: %clang_cc1 -analyze -analyzer-checker=core,core.experimental -analyzer-store=basic -verify %s
// RUN: %clang_cc1 -analyze -analyzer-checker=core,core.experimental -analyzer-store=region -verify %s
// Test function pointer casts. Currently we track function addresses using
// loc::FunctionVal. Because casts can be arbitrary, do we need to model
// functions with regions?
typedef void* (*MyFuncTest1)(void);
MyFuncTest1 test1_aux(void);
void test1(void) {
void *x;
void* (*p)(void);
p = ((void*) test1_aux());
if (p != ((void*) 0)) x = (*p)();
}
// Test casts from void* to function pointers. Same issue as above:
// should we eventually model function pointers using regions?
void* test2(void *p) {
MyFuncTest1 fp = (MyFuncTest1) p;
return (*fp)();
}