57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
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// RUN: %clang_analyze_cc1 -std=c++14 -analyzer-checker=core \
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// RUN: -analyzer-config suppress-null-return-paths=false \
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// RUN: -verify %s
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// RUN: %clang_analyze_cc1 -std=c++14 -analyzer-checker=core \
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// RUN: -DSUPPRESSED \
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// RUN: -verify %s
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void clang_analyzer_eval(bool);
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typedef __typeof__(sizeof(int)) size_t;
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// These are ill-formed. One cannot return nullptr from a throwing version of an
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// operator new.
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void *operator new(size_t size) {
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return nullptr;
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// expected-warning@-1 {{'operator new' should not return a null pointer unless it is declared 'throw()' or 'noexcept'}}
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// expected-warning@-2 {{null returned from function that requires a non-null return value}}
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}
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void *operator new[](size_t size) {
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return nullptr;
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// expected-warning@-1 {{'operator new[]' should not return a null pointer unless it is declared 'throw()' or 'noexcept'}}
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// expected-warning@-2 {{null returned from function that requires a non-null return value}}
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}
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struct S {
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int x;
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S() : x(1) {}
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~S() {}
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int getX() const { return x; }
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};
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void testArrays() {
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S *s = new S[10]; // no-crash
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s[0].x = 2;
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#ifndef SUPPRESSED
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// expected-warning@-2 {{Dereference of null pointer}}
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#endif
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}
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void testCtor() {
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S *s = new S();
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s->x = 13;
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#ifndef SUPPRESSED
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// expected-warning@-2 {{Access to field 'x' results in a dereference of a null pointer (loaded from variable 's')}}
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#endif
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}
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void testMethod() {
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S *s = new S();
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const int X = s->getX();
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#ifndef SUPPRESSED
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// expected-warning@-2 {{Called C++ object pointer is null}}
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#endif
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}
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