32 lines
983 B
C
32 lines
983 B
C
// RUN: %clang_cc1 -analyze -analyzer-checker=core,alpha.core,alpha.unix,alpha.security.ArrayBound -analyzer-store=region -verify %s
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//===----------------------------------------------------------------------===//
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// This file tests cases where we should not flag out-of-bounds warnings.
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//===----------------------------------------------------------------------===//
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void f() {
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long x = 0;
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char *y = (char*) &x;
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char c = y[0] + y[1] + y[2]; // no-warning
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short *z = (short*) &x;
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short s = z[0] + z[1]; // no-warning
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}
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void g() {
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int a[2];
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char *b = (char*)a;
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b[3] = 'c'; // no-warning
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}
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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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void field() {
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struct vec { size_t len; int data[0]; };
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// FIXME: Not warn for this.
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struct vec *a = malloc(sizeof(struct vec) + 10); // expected-warning {{Cast a region whose size is not a multiple of the destination type size}}
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a->len = 10;
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a->data[1] = 5; // no-warning
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free(a);
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}
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