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// RUN: %clang_cc1 -analyze -analyzer-checker=core,alpha.core,debug.ExprInspection -analyzer-store=region -verify %s
void clang_analyzer_eval(int);
void clang_analyzer_warnIfReached();
void f(void) {
void (*p)(void);
p = f;
p = &f;
p();
(*p)();
}
void g(void (*fp)(void));
void f2() {
g(f);
}
void f3(void (*f)(void), void (*g)(void)) {
clang_analyzer_eval(!f); // expected-warning{{UNKNOWN}}
f();
clang_analyzer_eval(!f); // expected-warning{{FALSE}}
clang_analyzer_eval(!g); // expected-warning{{UNKNOWN}}
(*g)();
clang_analyzer_eval(!g); // expected-warning{{FALSE}}
}
void nullFunctionPointerConstant() {
void (*f)(void) = 0;
f(); // expected-warning{{Called function pointer is null}}
clang_analyzer_warnIfReached(); // no-warning
}
void nullFunctionPointerConstraint(void (*f)(void)) {
if (f)
return;
f(); // expected-warning{{Called function pointer is null}}
clang_analyzer_warnIfReached(); // no-warning
}
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