checknullpointer.cpp File Reference

#include "checknullpointer.h"
#include "astutils.h"
#include "ctu.h"
#include "errorlogger.h"
#include "errortypes.h"
#include "library.h"
#include "mathlib.h"
#include "settings.h"
#include "symboldatabase.h"
#include "token.h"
#include "tokenize.h"
#include "valueflow.h"
#include <algorithm>
#include <cctype>
#include <map>
#include <set>
#include <vector>

Go to the source code of this file.

Functions
static bool	checkNullpointerFunctionCallPlausibility (const Function *func, unsigned int arg)
static bool	isNullablePointer (const Token *tok)
static std::string	arithmeticTypeString (const Token *tok)
static bool	isUnsafeUsage (const Settings &settings, const Token *vartok, MathLib::bigint *value)

Variables
static const CWE	CWE_NULL_POINTER_DEREFERENCE (476U)
static const CWE	CWE_INCORRECT_CALCULATION (682U)

Function Documentation

arithmeticTypeString()

static std::string arithmeticTypeString ( const Token *  tok )

static

Definition at line 504 of file checknullpointer.cpp.

References Token::str().

Referenced by CheckNullPointer::pointerArithmeticError(), and CheckNullPointer::redundantConditionWarning().

checkNullpointerFunctionCallPlausibility()

static bool checkNullpointerFunctionCallPlausibility ( const Function *  func, unsigned int  arg  )

static

Definition at line 54 of file checknullpointer.cpp.

References Function::argCount(), Function::getArgumentVar(), and Variable::isPointer().

Referenced by CheckNullPointer::parseFunctionCall().

isNullablePointer()

static bool isNullablePointer ( const Token *  tok )

static

Definition at line 264 of file checknullpointer.cpp.

References astIsPointer(), astIsSmartPointer(), Token::astOperand2(), Token::simpleMatch(), Token::variable(), and Token::varId().

Referenced by CheckNullPointer::nullPointerByDeRefAndChec().

isUnsafeUsage()

static bool isUnsafeUsage ( const Settings &  settings, const Token *  vartok, MathLib::bigint *  value  )

static

Definition at line 552 of file checknullpointer.cpp.

References CheckNullPointer::isPointerDeRef().

Referenced by CheckNullPointer::getFileInfo(), getUnsafeFunction(), and CTU::getUnsafeUsage().

Variable Documentation

CWE_INCORRECT_CALCULATION

const CWE CWE_INCORRECT_CALCULATION(682U) ( 682U  )

static

Referenced by CheckNullPointer::pointerArithmeticError(), and CheckNullPointer::redundantConditionWarning().

CWE_NULL_POINTER_DEREFERENCE

const CWE CWE_NULL_POINTER_DEREFERENCE(476U) ( 476U  )

static

Referenced by CheckNullPointer::analyseWholeProgram(), and CheckNullPointer::nullPointerError().