ae4772140f
We have several reports of false positives coming from libc++. For example, there are reports of false positives in std::regex, std::wcout, and also a bunch of issues are reported in https://reviews.llvm.org/D30593. In many cases, the analyzer trips over the complex libc++ code invariants. Let's turn off the reports coming from these headers until we can re-evalate the support. We can turn this back on once we individually suppress all known false positives and perform deeper evaluation on large codebases that use libc++. We'd also need to commit to doing these evaluations regularly as libc++ headers change. Differential Revision: https://reviews.llvm.org/D30798 llvm-svn: 297429
25 lines
875 B
C++
25 lines
875 B
C++
// RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -analyzer-config suppress-c++-stdlib=false -verify %s
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// RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -analyzer-config suppress-c++-stdlib=true -DSUPPRESSED=1 -verify %s
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// RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -DSUPPRESSED=1 -verify %s
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#ifdef SUPPRESSED
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// expected-no-diagnostics
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#endif
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#include "../Inputs/system-header-simulator-cxx.h"
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void clang_analyzer_eval(bool);
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class C {
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// The virtual function is to make C not trivially copy assignable so that we call the
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// variant of std::copy() that does not defer to memmove().
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virtual int f();
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};
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void testCopyNull(C *I, C *E) {
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std::copy(I, E, (C *)0);
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#ifndef SUPPRESSED
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// expected-warning@../Inputs/system-header-simulator-cxx.h:191 {{Called C++ object pointer is null}}
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#endif
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}
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