0a53fdf00c
The analyzer does not model C++ temporary destructors completely and so reports false alarms about leaks of memory allocated by the internals of shared_ptr: std::shared_ptr<int> p(new int(1)); p = nullptr; // 'Potential leak of memory pointed to by field __cntrl_' This patch suppresses all diagnostics where the end of the path is inside a method in std::shared_ptr. It also reorganizes the tests for suppressions in the C++ standard library to use a separate simulated header for library functions with bugs that were deliberately inserted to test suppression. This will prevent other tests from using these as models. rdar://problem/23652766 llvm-svn: 274691
30 lines
1.0 KiB
C++
30 lines
1.0 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
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// 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
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#include "../Inputs/system-header-simulator-cxx.h"
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void clang_analyzer_eval(bool);
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void testVector(std::vector<int> &nums) {
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if (nums.begin()) return;
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if (nums.end()) return;
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clang_analyzer_eval(nums.size() == 0);
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#if INLINE
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// expected-warning@-2 {{TRUE}}
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#else
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// expected-warning@-4 {{UNKNOWN}}
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#endif
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}
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void testException(std::exception e) {
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// Notice that the argument is NOT passed by reference, so we can devirtualize.
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const char *x = e.what();
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clang_analyzer_eval(x == 0);
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#if INLINE
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// expected-warning@-2 {{TRUE}}
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#else
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// expected-warning@-4 {{UNKNOWN}}
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#endif
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}
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