4c56c22634
This is similar to r194004: because we can't reason about the data structure invariants of std::basic_string, the analyzer decides it's possible for an allocator to be used to deallocate the string's inline storage. Just ignore this by walking up the stack, skipping past methods in classes with "allocator" in the name, and seeing if we reach std::basic_string that way. PR17866 llvm-svn: 194764
45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
// RUN: %clang_cc1 -analyze -analyzer-checker=core,unix.Malloc,cplusplus.NewDelete,debug.ExprInspection -analyzer-config c++-container-inlining=true -analyzer-config c++-stdlib-inlining=false -std=c++11 -verify %s
|
|
// RUN: %clang_cc1 -analyze -analyzer-checker=core,unix.Malloc,cplusplus.NewDelete,debug.ExprInspection -analyzer-config c++-container-inlining=true -analyzer-config c++-stdlib-inlining=true -std=c++11 -DINLINE=1 -verify %s
|
|
|
|
#include "../Inputs/system-header-simulator-cxx.h"
|
|
|
|
void clang_analyzer_eval(bool);
|
|
|
|
void testVector(std::vector<int> &nums) {
|
|
if (nums.begin()) return;
|
|
if (nums.end()) return;
|
|
|
|
clang_analyzer_eval(nums.size() == 0);
|
|
#if INLINE
|
|
// expected-warning@-2 {{TRUE}}
|
|
#else
|
|
// expected-warning@-4 {{UNKNOWN}}
|
|
#endif
|
|
}
|
|
|
|
void testException(std::exception e) {
|
|
// Notice that the argument is NOT passed by reference, so we can devirtualize.
|
|
const char *x = e.what();
|
|
clang_analyzer_eval(x == 0);
|
|
#if INLINE
|
|
// expected-warning@-2 {{TRUE}}
|
|
#else
|
|
// expected-warning@-4 {{UNKNOWN}}
|
|
#endif
|
|
}
|
|
|
|
void testList_pop_front(std::list<int> list) {
|
|
while(!list.empty())
|
|
list.pop_front(); // no-warning
|
|
}
|
|
|
|
void testBasicStringSuppression() {
|
|
std::basic_string<uint8_t> v;
|
|
v.push_back(1); // no-warning
|
|
}
|
|
|
|
void testBasicStringSuppression_append() {
|
|
std::basic_string<char32_t> v;
|
|
v += 'c'; // no-warning
|
|
}
|