Merge pull request #910 from mathbunnyru/asalikhov/improve_readability

improve readability

cli/filelister.cpp

@@ -231,19 +231,13 @@ void FileLister::addFiles(std::map<std::string, std::size_t> &files, const std::
 bool FileLister::isDirectory(const std::string &path)
 {
     struct stat file_stat;
-    if (stat(path.c_str(), &file_stat) != -1)
-        return ((file_stat.st_mode & S_IFMT) == S_IFDIR);
-
-    return false;
+    return (stat(path.c_str(), &file_stat) != -1 && (file_stat.st_mode & S_IFMT) == S_IFDIR);
 }
 
 bool FileLister::fileExists(const std::string &path)
 {
     struct stat file_stat;
-    if (stat(path.c_str(), &file_stat) != -1)
-        return ((file_stat.st_mode & S_IFMT) == S_IFREG);
-
-    return false;
+    return (stat(path.c_str(), &file_stat) != -1 && (file_stat.st_mode & S_IFMT) == S_IFREG);
 }
 
 #endif

gui/test/data/benchmark/simple.cpp

@@ -1064,7 +1064,7 @@ public:
 
         /** is variable unused? */
         bool unused() const {
-            return (_read == false && _write == false);
+            return (!_read && !_write);
         }
 
         const Token *_name;

lib/checkautovariables.cpp

@@ -396,7 +396,7 @@ bool CheckAutoVariables::returnTemporary(const Token *tok)
     if (!func && tok->type())
         return true;
 
-    return bool(!retref && retvalue);
+    return (!retref && retvalue);
 }
 
 //---------------------------------------------------------------------------

lib/checkuninitvar.cpp

@@ -651,7 +651,7 @@ bool CheckUninitVar::checkScopeForVariable(const Token *tok, const Variable& var
                 tok = tok->next();
             }
 
-            return bool(noreturn==nullptr);
+            return (noreturn == nullptr);
         }
 
         // variable is seen..

lib/path.cpp

@@ -82,7 +82,7 @@ std::string Path::simplifyPath(std::string originalPath)
     std::vector<std::string> pathParts;
     for (std::size_t i = 0; i < originalPath.size(); ++i) {
         if (originalPath[i] == '/' || originalPath[i] == '\\') {
-            if (subPath.length() > 0) {
+            if (!subPath.empty()) {
                 pathParts.push_back(subPath);
                 subPath.clear();
             }
@@ -92,7 +92,7 @@ std::string Path::simplifyPath(std::string originalPath)
             subPath.append(1, originalPath[i]);
     }
 
-    if (subPath.length() > 0)
+    if (!subPath.empty())
         pathParts.push_back(subPath);
 
     // First filter out all double slashes
@@ -146,13 +146,13 @@ std::string Path::getPathFromFilename(const std::string &filename)
 bool Path::sameFileName(const std::string &fname1, const std::string &fname2)
 {
 #if defined(__linux__) || defined(__sun) || defined(__hpux)
-    return bool(fname1 == fname2);
+    return (fname1 == fname2);
 #elif defined(_MSC_VER) || (defined(__GNUC__) && defined(_WIN32))
-    return bool(_stricmp(fname1.c_str(), fname2.c_str()) == 0);
+    return (_stricmp(fname1.c_str(), fname2.c_str()) == 0);
 #elif defined(__GNUC__)
-    return bool(strcasecmp(fname1.c_str(), fname2.c_str()) == 0);
+    return (strcasecmp(fname1.c_str(), fname2.c_str()) == 0);
 #elif defined(__BORLANDC__)
-    return bool(stricmp(fname1.c_str(), fname2.c_str()) == 0);
+    return (stricmp(fname1.c_str(), fname2.c_str()) == 0);
 #else
 #error Platform filename compare function needed
 #endif
@@ -251,7 +251,7 @@ bool Path::isC(const std::string &path)
 bool Path::isCPP(const std::string &path)
 {
     const std::string extension = getFilenameExtensionInLowerCase(path);
-    if (extension == ".cpp" ||
+    return extension == ".cpp" ||
         extension == ".cxx" ||
         extension == ".cc" ||
         extension == ".c++" ||
@@ -259,12 +259,8 @@ bool Path::isCPP(const std::string &path)
         extension == ".hxx" ||
         extension == ".hh" ||
         extension == ".tpp" ||
-        extension == ".txx") {
-        return true;
-    }
-
-    // In unix, ".C" is considered C++ file
-    return (getFilenameExtension(path) == ".C");
+        extension == ".txx" ||
+        getFilenameExtension(path) == ".C"; // In unix, ".C" is considered C++ file
 }
 
 bool Path::acceptFile(const std::string &path, const std::set<std::string> &extra)

lib/symboldatabase.h

@@ -185,7 +185,7 @@ class CPPCHECKLIB Variable {
      * @return true if flag set or false in flag not set
      */
     bool getFlag(unsigned int flag_) const {
-        return bool((_flags & flag_) != 0);
+        return ((_flags & flag_) != 0);
     }
 
     /**
@@ -656,7 +656,7 @@ class CPPCHECKLIB Function {
      * @return true if flag set or false in flag not set
      */
     bool getFlag(unsigned int flag) const {
-        return bool((flags & flag) != 0);
+        return ((flags & flag) != 0);
     }
 
     /**

lib/token.h

@@ -893,7 +893,7 @@ private:
      * @return true if flag set or false in flag not set
      */
     bool getFlag(unsigned int flag_) const {
-        return bool((_flags & flag_) != 0);
+        return ((_flags & flag_) != 0);
     }
 
     /**

lib/tokenize.cpp

@@ -2369,7 +2369,7 @@ static bool setVarIdParseDeclaration(const Token **tok, const std::map<std::stri
             return false;
     }
 
-    return bool(typeCount >= 2 && tok2 && Token::Match(tok2->tokAt(-2), "!!:: %type%"));
+    return (typeCount >= 2 && tok2 && Token::Match(tok2->tokAt(-2), "!!:: %type%"));
 }
 
 

test/testclass.cpp

@@ -4436,7 +4436,7 @@ private:
                    "        x = 0;\n"
                    "    }\n"
                    "    bool isValid() {\n"
-                   "        return bool(x == 0x11224488);\n"
+                   "        return (x == 0x11224488);\n"
                    "    }\n"
                    "};");
         ASSERT_EQUALS("[test.cpp:9]: (style, inconclusive) Technically the member function 'Fred::isValid' can be const.\n", errout.str());