43 lines
927 B
C
43 lines
927 B
C
// RUN: %clang_cc1 -analyze -analyzer-checker=core,alpha.unix,core.uninitialized -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 free(void *);
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char stackBased1 () {
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char buf[2];
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buf[0] = 'a';
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return buf[1]; // expected-warning{{Undefined}}
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}
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char stackBased2 () {
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char buf[2];
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buf[1] = 'a';
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return buf[0]; // expected-warning{{Undefined}}
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}
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// Exercise the conditional visitor. Radar://10105448
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char stackBased3 (int *x) {
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char buf[2];
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int *y;
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buf[0] = 'a';
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if (!(y = x)) {
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return buf[1]; // expected-warning{{Undefined}}
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}
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return buf[0];
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}
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char heapBased1 () {
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char *buf = malloc(2);
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buf[0] = 'a';
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char result = buf[1]; // expected-warning{{undefined}}
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free(buf);
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return result;
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}
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char heapBased2 () {
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char *buf = malloc(2);
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buf[1] = 'a';
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char result = buf[0]; // expected-warning{{undefined}}
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free(buf);
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return result;
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}
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