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56 lines
1.3 KiB
56 lines
1.3 KiB
/*
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* Copyright (c) 2017-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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void external_func(int* const*);
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int const_local_no_abduce(int* p) {
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external_func(&p);
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return p ? *p : 0;
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// We shouldn't get a stack address escape warning here
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}
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void set_ptr(int* ptr, int val) { *ptr = val; }
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int set_ptr_local_array() {
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int buf[2];
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set_ptr(buf, 1);
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return buf[0];
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}
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void set_ptr_local_array_return_true_ok() {
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int* p = 0;
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if (!set_ptr_local_array())
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// not reachable if the analysis of set_ptr_local_array is correct
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*p = 42;
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}
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int set_ptr_param_array(int buf[]) {
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set_ptr(buf, 1);
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return buf[0];
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}
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void set_ptr_param_array_return_true_ok() {
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int buf[2];
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int* p = 0;
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if (!set_ptr_param_array(buf))
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// not reachable if the analysis of set_ptr_local_array is correct
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*p = 42;
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}
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void set_ptr_param_array_get_ptr_ok() {
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int x = 0;
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int* p = 0;
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if (!set_ptr_param_array(&x))
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// not reachable if the analysis of set_ptr_local_array is correct
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*p = 42;
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}
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void FN_set_ptr_param_array_get_null_bad() {
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// A null pointer dereference is expected here, but currently we get a
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// PRECONDITION_NOT_MET
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set_ptr_param_array(0);
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}
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