cppcheck/main.cpp

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#include <iostream>
#include <sstream>
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#include "tokenize.h" // <- Tokenizer
#include "Statements.h" // <- Statement list
#include "CheckMemoryLeak.h"
#include "CheckBufferOverrun.h"
#include "CheckClass.h"
#include "CheckHeaders.h"
#include "CheckOther.h"
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//---------------------------------------------------------------------------
bool Debug = false;
bool ShowAll = false;
bool CheckCodingStyle = false;
//---------------------------------------------------------------------------
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static void CppCheck(const char FileName[]);
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//---------------------------------------------------------------------------
// Main function of cppcheck
//---------------------------------------------------------------------------
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int main(int argc, char* argv[])
{
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const char *fname = NULL;
for (int i = 1; i < argc; i++)
{
if (strcmp(argv[i],"--debug") == 0)
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Debug = true;
// Show all messages
else if (strcmp(argv[i],"--all") == 0)
ShowAll = true;
// Checking coding style.
else if (strcmp(argv[i],"--style")==0)
CheckCodingStyle = true;
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else
fname = argv[i];
}
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if (!fname)
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{
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std::cout << "C/C++ code checking.\n"
"\n"
"Syntax:\n"
" cppcheck [--all] [--style] filename\n"
"\n"
"Options:\n"
" --all Normally a message is only shown if cppcheck is sure\n"
" it has found a bug.\n"
" When this option is given, all messages are shown.\n"
"\n"
" --style Check coding style.\n";
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return 0;
}
CppCheck(fname);
return 0;
}
//---------------------------------------------------------------------------
// CppCheck - A function that checks a specified file
//---------------------------------------------------------------------------
extern bool HasErrors;
static void CppCheck(const char FileName[])
{
HasErrors = false;
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std::cout << "Checking " << FileName << "...\n";
// Tokenize the file
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tokens = tokens_back = NULL;
Files.clear();
Tokenize(FileName);
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// Check that the memsets are valid.
// The 'memset' function can do dangerous things if used wrong.
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// Important: The checking doesn't work on simplified tokens list.
CheckMemset();
// Including header which is not needed
if ( CheckCodingStyle )
WarningIncludeHeader();
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SimplifyTokenList();
// Create a statement list. It's used by for example 'CheckMemoryLeak'
CreateStatementList();
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// Memory leak
CheckMemoryLeak();
// Buffer overruns..
CheckBufferOverrun();
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if (ShowAll)
{
// Check for "if (a=b)"
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CheckIfAssignment();
// Check for case without break
// Disabled because it generates many false positives
// CheckCaseWithoutBreak();
// Check that all class constructors are ok.
// Temporarily inactivated to avoid any false positives
CheckConstructors();
// Dangerous usage of strtok
// Disabled because it generates false positives
//WarningStrTok();
}
// Dangerous functions, such as 'gets' and 'scanf'
WarningDangerousFunctions();
// Invalid function usage..
InvalidFunctionUsage();
if (CheckCodingStyle)
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{
// Check that all private functions are called.
CheckUnusedPrivateFunctions();
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// Found implementation in header
WarningHeaderWithImplementation();
// Warning upon c-style pointer casts
const char *ext = strrchr(FileName, '.');
#ifdef __linux__
if (ext && strcasecmp(ext,".c"))
#else
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if (ext && stricmp(ext,".c"))
#endif
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WarningOldStylePointerCast();
// Use standard functions instead
WarningIsDigit();
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WarningIsAlpha();
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CheckOperatorEq1();
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// if (a) delete a;
WarningRedundantCode();
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// if (condition);
WarningIf();
}
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// Clean up tokens..
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DeallocateTokens();
// Todo: How should this work? Activated by a command line switch?
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if ( ! HasErrors )
std::cout << "No errors found\n";
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}
//---------------------------------------------------------------------------
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