зеркало из https://github.com/microsoft/clang.git
33 строки
1004 B
C
33 строки
1004 B
C
// RUN: %clang_cc1 -analyze -analyzer-checker=core,experimental.core,experimental.unix,experimental.security.ArrayBound -analyzer-store=region -verify %s
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// This file tests cases where we should not flag out-of-bounds warnings.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
void f() {
|
|
long x = 0;
|
|
char *y = (char*) &x;
|
|
char c = y[0] + y[1] + y[2]; // no-warning
|
|
short *z = (short*) &x;
|
|
short s = z[0] + z[1]; // no-warning
|
|
}
|
|
|
|
void g() {
|
|
int a[2];
|
|
char *b = (char*)a;
|
|
b[3] = 'c'; // no-warning
|
|
}
|
|
|
|
typedef typeof(sizeof(int)) size_t;
|
|
void *malloc(size_t);
|
|
void free(void *);
|
|
|
|
void field() {
|
|
struct vec { size_t len; int data[0]; };
|
|
// FIXME: Not warn for this.
|
|
struct vec *a = malloc(sizeof(struct vec) + 10); // expected-warning {{Cast a region whose size is not a multiple of the destination type size}}
|
|
a->len = 10;
|
|
a->data[1] = 5; // no-warning
|
|
free(a);
|
|
}
|