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// RUN: %clang_analyze_cc1 -verify %s \
// RUN: -analyzer-checker=core \
// RUN: -analyzer-checker=unix \
// RUN: -analyzer-checker=core.uninitialized \
// RUN: -analyzer-config unix.DynamicMemoryModeling:Optimistic=true
typedef __typeof(sizeof(int)) size_t;
void *malloc(size_t);
void free(void *);
char stackBased1 (void) {
char buf[2];
buf[0] = 'a';
return buf[1]; // expected-warning{{Undefined}}
}
char stackBased2 (void) {
char buf[2];
buf[1] = 'a';
return buf[0]; // expected-warning{{Undefined}}
}
// Exercise the conditional visitor.
char stackBased3 (int *x) {
char buf[2];
int *y;
buf[0] = 'a';
if (!(y = x)) {
return buf[1]; // expected-warning{{Undefined}}
}
return buf[0];
}
char heapBased1 (void) {
char *buf = malloc(2);
buf[0] = 'a';
char result = buf[1]; // expected-warning{{uninitialized}}
free(buf);
return result;
}
char heapBased2 (void) {
char *buf = malloc(2);
buf[1] = 'a';
char result = buf[0]; // expected-warning{{uninitialized}}
free(buf);
return result;
}
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