int main() { int *ptr = nullptr; *ptr = 10; return 0; } 在这段代码中,我们创建了一个空指针ptr,然后试图对其进行解引用。这将导致未定义的行为。 我们可以使用Cppcheck来检查这段代码: cppcheck --enable=all null_pointer.cpp Cppcheck的输出可能类似下面这样: Checking null_pointer.cpp... [nul...
检查是否存在使用delete但没有将指针设为nullptr的代码:bash delete\s+\w+;\s*(?!.*\1\s*=\s*nullptr;)这个规则会匹配到任何使用delete但没有将指针设为nullptr的代码。在C++中,删除一个指针后,通常推荐将其设为nullptr,以防止悬挂指针。 检查是否存在没有虚析构函数的多态基类:bash class\s+\w+\s*{\...
What should I do if hdc cannot run? What should I do if "Connect server failed" is displayed due to port preemption? What should I do if "Connect server failed" is displayed due to abnormal registry? What should I do if there are three devices that cannot be identified in a singl...
You said that it's a wchar_t pointer. If so, you can't use strlen() with it. It would give a compile error. You can only use strlen() with a char* - for a wchar_t* you need to use wcslen(). Wayne Sunday, August 18, 2013 6:42 AM You asked about blank strings. The ab...
runastyle test/cfg: Improved testing of functions from standard namespace. Added… 10年前 runastyle.bat updated runastyle scripts 12年前 webreport.sh webreport: removed scp command 12年前 README GPL-3.0 简介 static analysis of C/C++ code 暂无标签 C++ GPL-3.0 发行版...
Check if a string is a valid JSON. Parameters [in]textA pointer to the start of the text [in]lengthThe length of the text [out]error_offsetIf the text is not a valid JSON, this variable will be set to the position in the input string where the error occurred. Can be nullptr. ...
I have updated the documentation, if applicable. (Check if there is no need to update the documentation, for example if this is a bug fix that doesn't change the API.) I have ensured that the change is tested somewhere in the testsuite ...
boolCheckThread(JNIEnv*env)REQUIRES_SHARED(Locks::mutator_lock_){Thread*self=Thread::Current();CHECK(self!=nullptr);// Get the current thread's JNIEnv by going through our TLS pointer.JNIEnvExt*threadEnv=self->GetJniEnv();// Verify that the current thread is (a) attached and (b) ass...
a location with a valid object or nullptr. C26487 LIFETIMES_FUNCTION_POSTCONDITION_VIOLATION If a pointer is returned from a function it must either point to a valid object which will outlive the function or be nullptr. C26489 LIFETIMES_DEREF_INVALID_POINTER This rule tries to catch scenarios...
/// times. Only one of those instantiations shall emit a warning. NOTE: This@@ -145,64 +165,90 @@void ConstCorrectnessCheck::check(const MatchFinder::MatchResult &Result) { if (ArrayT->getElementType()->isPointerType()) VC = VariableCategory::Pointer;-// Each variable can only be ...