cppcheck/lib/checkobsolescentfunctions.cpp

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/*
* Cppcheck - A tool for static C/C++ code analysis
2015-11-18 20:04:50 +01:00
* Copyright (C) 2007-2015 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/>.
*/
//---------------------------------------------------------------------------
// Obsolete functions
//---------------------------------------------------------------------------
#include "checkobsolescentfunctions.h"
#include "symboldatabase.h"
//---------------------------------------------------------------------------
std::map<std::string, std::string> CheckObsoleteFunctions::_obsoleteStandardFunctions;
std::map<std::string, std::string> CheckObsoleteFunctions::_obsoletePosixFunctions;
std::map<std::string, std::string> CheckObsoleteFunctions::_obsoleteC99Functions;
// Register this check class (by creating a static instance of it)
namespace {
CheckObsoleteFunctions instance;
}
void CheckObsoleteFunctions::obsoleteFunctions()
{
if (!_settings->isEnabled("style"))
return;
const SymbolDatabase *symbolDatabase = _tokenizer->getSymbolDatabase();
const bool cStandard = _settings->standards.c >= Standards::C99 ;
for (unsigned int i = 0; i < symbolDatabase->functionScopes.size(); i++) {
const Scope* scope = symbolDatabase->functionScopes[i];
for (const Token* tok = scope->classStart; tok != scope->classEnd; tok = tok->next()) {
if (tok->isName() && tok->varId()==0 && (!tok->function() || !tok->function()->hasBody()) && tok->strAt(1) == "(" &&
tok->strAt(-1) != "." && (!Token::Match(tok->tokAt(-2), "%name% ::") || Token::simpleMatch(tok->tokAt(-2), "std ::"))) {
std::map<std::string,std::string>::const_iterator it = _obsoleteStandardFunctions.find(tok->str());
if (it != _obsoleteStandardFunctions.end()) {
// If checking an old code base it might be uninteresting to update obsolete functions.
reportError(tok, Severity::style, "obsoleteFunctions"+it->first, it->second);
} else {
if (_settings->standards.posix) {
it = _obsoletePosixFunctions.find(tok->str());
if (it != _obsoletePosixFunctions.end()) {
// If checking an old code base it might be uninteresting to update obsolete functions.
reportError(tok, Severity::style, "obsoleteFunctions"+it->first, it->second);
}
}
if (cStandard) {
// alloca : this function is obsolete in C but not in C++ (#4382)
it = _obsoleteC99Functions.find(tok->str());
if (it != _obsoleteC99Functions.end() && !(tok->str() == "alloca" && _tokenizer->isCPP())) {
reportError(tok, Severity::style, "obsoleteFunctions"+it->first, it->second);
}
}
}
}
}
}
}
//---------------------------------------------------------------------------