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