98 lines
2.9 KiB
C++
98 lines
2.9 KiB
C++
/*
|
|
* Cppcheck - A tool for static C/C++ code analysis
|
|
* Copyright (C) 2007-2009 Daniel Marjamäki and Cppcheck team.
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
|
|
//---------------------------------------------------------------------------
|
|
#ifndef CheckAutoVariablesH
|
|
#define CheckAutoVariablesH
|
|
//---------------------------------------------------------------------------
|
|
|
|
#include "check.h"
|
|
#include "token.h"
|
|
#include <set>
|
|
|
|
/// @addtogroup Checks
|
|
/// @{
|
|
|
|
|
|
class CheckAutoVariables : public Check
|
|
{
|
|
public:
|
|
/** This constructor is used when registering the CheckClass */
|
|
CheckAutoVariables() : Check()
|
|
{ }
|
|
|
|
/** This constructor is used when running checks.. */
|
|
CheckAutoVariables(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger)
|
|
: Check(tokenizer, settings, errorLogger)
|
|
{ }
|
|
|
|
void runSimplifiedChecks(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger)
|
|
{
|
|
CheckAutoVariables checkAutoVariables(tokenizer, settings, errorLogger);
|
|
checkAutoVariables.autoVariables();
|
|
checkAutoVariables.returnPointerToLocalArray();
|
|
}
|
|
|
|
/** Check auto variables */
|
|
void autoVariables();
|
|
|
|
/** Returning pointer to local array */
|
|
void returnPointerToLocalArray();
|
|
|
|
private:
|
|
std::set<std::string> fp_list;
|
|
std::set<unsigned int> vd_list;
|
|
std::set<unsigned int> vda_list;
|
|
bool errorAv(const Token* left, const Token* right);
|
|
bool isAutoVar(unsigned int varId);
|
|
bool isAutoVarArray(unsigned int varId);
|
|
void addVD(unsigned int varId);
|
|
void addVDA(unsigned int varId);
|
|
|
|
|
|
|
|
|
|
void errorReturnPointerToLocalArray(const Token *tok);
|
|
void errorAutoVariableAssignment(const Token *tok);
|
|
|
|
|
|
void getErrorMessages()
|
|
{
|
|
errorAutoVariableAssignment(0);
|
|
errorReturnPointerToLocalArray(0);
|
|
}
|
|
|
|
std::string name() const
|
|
{
|
|
return "Auto Variables";
|
|
}
|
|
|
|
std::string classInfo() const
|
|
{
|
|
return "A pointer to a variable is only valid as long as the variable is in scope.\n"
|
|
"Check:\n"
|
|
"* returning a pointer to variable\n"
|
|
"* assigning address of an variable to an effective parameter of a function\n";
|
|
}
|
|
};
|
|
/// @}
|
|
//---------------------------------------------------------------------------
|
|
#endif
|
|
|