9165df129e
Now that the libcpp implementations of these methods has a branch that doesn't call memmove(), the analyzer needs to invalidate the destination for these methods explicitly. rdar://problem/23575656 llvm-svn: 260043
39 lines
944 B
C++
39 lines
944 B
C++
// RUN: %clang_cc1 -analyze -analyzer-checker=core,unix.cstring,alpha.unix.cstring,debug.ExprInspection -analyzer-store=region -verify %s
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#include "Inputs/system-header-simulator-cxx.h"
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#include "Inputs/system-header-simulator-for-malloc.h"
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void clang_analyzer_eval(int);
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int *testStdCopyInvalidatesBuffer(std::vector<int> v) {
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int n = v.size();
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int *buf = (int *)malloc(n * sizeof(int));
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buf[0] = 66;
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// Call to copy should invalidate buf.
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std::copy(v.begin(), v.end(), buf);
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int i = buf[0];
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clang_analyzer_eval(i == 66); // expected-warning {{UNKNOWN}}
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return buf;
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}
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int *testStdCopyBackwardInvalidatesBuffer(std::vector<int> v) {
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int n = v.size();
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int *buf = (int *)malloc(n * sizeof(int));
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buf[0] = 66;
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// Call to copy_backward should invalidate buf.
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std::copy_backward(v.begin(), v.end(), buf + n);
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int i = buf[0];
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clang_analyzer_eval(i == 66); // expected-warning {{UNKNOWN}}
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return buf;
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}
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