497d060d0a
Report undefined pointer dereference in similar way as null pointer dereference. Reviewed By: NoQ Differential Revision: https://reviews.llvm.org/D84520
33 lines
721 B
C
33 lines
721 B
C
// RUN: %clang_analyze_cc1 -analyzer-checker=core -verify %s
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typedef unsigned uintptr_t;
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void f1() {
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int *p;
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*p = 0; // expected-warning{{Dereference of undefined pointer value}}
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}
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struct foo_struct {
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int x;
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};
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int f2() {
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struct foo_struct *p;
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return p->x++; // expected-warning{{Access to field 'x' results in a dereference of an undefined pointer value (loaded from variable 'p')}}
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}
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int f3() {
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char *x;
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int i = 2;
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return x[i + 1]; // expected-warning{{Array access (from variable 'x') results in an undefined pointer dereference}}
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}
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int f3_b() {
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char *x;
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int i = 2;
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return x[i + 1]++; // expected-warning{{Array access (from variable 'x') results in an undefined pointer dereference}}
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}
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