forked from OSchip/llvm-project
52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
// RUN: %clang_cc1 -analyze -analyzer-experimental-internal-checks -analyzer-experimental-checks -analyzer-check-objc-mem -analyzer-store=region -verify %s
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typedef __typeof(sizeof(int)) size_t;
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void *malloc(size_t);
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void *calloc(size_t, size_t);
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char f1() {
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char* s = "abcd";
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char c = s[4]; // no-warning
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return s[5] + c; // expected-warning{{Access out-of-bound array element (buffer overflow)}}
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}
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void f2() {
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int *p = malloc(12);
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p[3] = 4; // expected-warning{{Access out-of-bound array element (buffer overflow)}}
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}
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struct three_words {
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int c[3];
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};
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struct seven_words {
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int c[7];
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};
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void f3() {
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struct three_words a, *p;
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p = &a;
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p[0] = a; // no-warning
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p[1] = a; // expected-warning{{Access out-of-bound array element (buffer overflow)}}
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}
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void f4() {
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struct seven_words c;
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struct three_words a, *p = (struct three_words *)&c;
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p[0] = a; // no-warning
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p[1] = a; // no-warning
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p[2] = a; // expected-warning{{Access out-of-bound array element (buffer overflow)}}
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}
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void f5() {
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char *p = calloc(2,2);
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p[3] = '.'; // no-warning
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p[4] = '!'; // expected-warning{{out-of-bound}}
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}
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void f6() {
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char a[2];
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int *b = (int*)a;
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b[1] = 3; // expected-warning{{out-of-bound}}
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}
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