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