diff --git a/src/deptree.cpp b/src/deptree.cpp
index b9dc9c1..07568d6 100644
--- a/src/deptree.cpp
+++ b/src/deptree.cpp
@@ -147,7 +147,7 @@ DepTree::LeafVector DepTree::FindLeafNodes() const
  {
   if(it!=end)
   {
-   if((*it)->visited==isvisited) {it++; continue;}
+   if((*it)->visited==isvisited) {++it; continue;}
    path.push(it); ends.push(end);
    curnode=(*it);
    curnode->visited=isvisited;
@@ -160,7 +160,7 @@ DepTree::LeafVector DepTree::FindLeafNodes() const
    if(path.size()==0) break;
    it=path.top(); path.pop();
    end=ends.top(); ends.pop();
-   it++;
+   ++it;
   }
  }
 
diff --git a/src/object.cpp b/src/object.cpp
index 754dc75..e7193d2 100644
--- a/src/object.cpp
+++ b/src/object.cpp
@@ -6,7 +6,7 @@ template<> EXPORT std::string ObjectSimple<int64_t>::type="integer";
 template<> EXPORT std::string ObjectSimple<double>::type="real";
 template<> EXPORT std::string ObjectSimple<std::string>::type="string";
 
-inline ObjectBase* OFunc::Evaluate(bool* err)
+ObjectBase* OFunc::Evaluate(bool* err)
 {
  *err=false;
  if(G_funcs.find(name)==G_funcs.end())
diff --git a/src/object.h b/src/object.h
index 1cc6082..687efce 100644
--- a/src/object.h
+++ b/src/object.h
@@ -283,7 +283,7 @@ class OId: public ObjectBase
  std::string name;
 
 public:
- OId(const std::string* t) {name=*t;}
+ OId(const std::string* t):name(*t) {}
  ~OId() {}
  bool Print() const override {return false;}
  std::string Type() const override {return "IDENT";}
diff --git a/src/parser/lexical.l b/src/parser/lexical.l
index 67b1fdf..2fa9534 100644
--- a/src/parser/lexical.l
+++ b/src/parser/lexical.l
@@ -28,7 +28,7 @@ class ObjectBase;
 // Get rid of warning on unused function
 #define YY_NO_INPUT
 // Termination (mostly. in case of errors)
-#define yyterminate(ret) { while(YY_CURRENT_BUFFER) yypop_buffer_state(yyscanner); str.erase(); yyextra->retcode=-(ret); return (ret); }
+#define yyterminate(ret) { while(0!=YY_CURRENT_BUFFER) yypop_buffer_state(yyscanner); str.erase(); yyextra->retcode=-(ret); return (ret); }
 // Abnormal termination with description of error
 #define yyerrormessage(message,ret) {COUT(ERROR)<<std::endl<<" Lexical error in file "<<yyextra->state.curdir<<yyextra->state.filename<<" at line "<<yyextra->state.curline<<": "<<(message)<<std::endl; yyterminate(ret);}
 // Trace position
@@ -97,5 +97,5 @@ std::string str;
 <PSTRING>\"					BEGIN(PARSE); COUT(MOREDEBUG)<<" STRING("<<str<<")"; yylval_param->str=new std::string(str); {struct lexical_state prstate=yyextra->states.top(); yyextra->states.pop(); yylloc_param->first_line=prstate.curline; yylloc_param->last_line=yyextra->state.curline; yylloc_param->first_column=prstate.curpos; yylloc_param->last_column=yyextra->state.curpos+yyleng;}; yynextsym; return STRING;
 <PSTRING,INCLUDE>.				str+=yytext[0]; yynextsym;
 <PSTRING,INCLUDE><<EOF>>			yyextra->states.pop(); yyerrormessage("unclosed quote",-1);
-<<EOF>>						yypop_buffer_state(yyscanner); if(YY_CURRENT_BUFFER) {yyextra->state=yyextra->states.top(); yyextra->states.pop(); fclose(yyextra->fds.top()); yyextra->fds.pop(); yylloc_param->filename=yyextra->state.curdir+yyextra->state.filename;} else yyterminate(0);
+<<EOF>>						yypop_buffer_state(yyscanner); if(0!=YY_CURRENT_BUFFER) {yyextra->state=yyextra->states.top(); yyextra->states.pop(); fclose(yyextra->fds.top()); yyextra->fds.pop(); yylloc_param->filename=yyextra->state.curdir+yyextra->state.filename;} else yyterminate(0);
 %%