diff --git a/NEWS.md b/NEWS.md
index 592f2068..1dc4676e 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -131,6 +131,8 @@ Red Panda C++ Version 2.27
   - fix: Can't find the correct type if current symbol is member of a class that has constructors.
   - fix: Alias a namespace to itself will create infinite loop.
   - fix: Can't find symbols indirectly included by other files.
+  - enhancement: Function tip's width changes with editor width.
+  - fix: '<' / '>' not shown in function tips.
     
 Red Panda C++ Version 2.26
   - enhancement: Code suggestion for embedded std::vectors.
diff --git a/RedPandaIDE/editor.cpp b/RedPandaIDE/editor.cpp
index 896e1d44..f10a5866 100644
--- a/RedPandaIDE/editor.cpp
+++ b/RedPandaIDE/editor.cpp
@@ -1640,6 +1640,7 @@ void Editor::hideEvent(QHideEvent */*event*/)
 void Editor::resizeEvent(QResizeEvent *event)
 {
     QSynedit::QSynEdit::resizeEvent(event);
+    pMainWindow->functionTip()->setMinWidth(width()*3/4);
     pMainWindow->functionTip()->hide();
 }
 
diff --git a/RedPandaIDE/parser/cppparser.cpp b/RedPandaIDE/parser/cppparser.cpp
index 7cc6e741..4dfce160 100644
--- a/RedPandaIDE/parser/cppparser.cpp
+++ b/RedPandaIDE/parser/cppparser.cpp
@@ -1524,11 +1524,13 @@ PStatement CppParser::addStatement(const PStatement &parent,
         QChar ch=mTokenizer[i]->text[0];
         if (this->isIdentChar(ch)) {
             QString spaces=(i>argStart)?" ":"";
-            if (args.length()>0 && isWordChar(args.back()))
+            if (args.length()>0 && (isWordChar(args.back()) || args.back()=='>'))
                 args+=spaces;
             word += mTokenizer[i]->text;
             if (!typeGetted) {
-                noNameArgs+=spaces+word;
+                if (noNameArgs.length()>0 && isWordChar(noNameArgs.back()))
+                    noNameArgs+=spaces;
+                noNameArgs+=word;
                 if (mCppTypeKeywords.contains(word) || !isCppKeyword(word))
                     typeGetted = true;
             } else {
@@ -1541,6 +1543,7 @@ PStatement CppParser::addStatement(const PStatement &parent,
         } else if (mTokenizer[i]->text=="::") {
             if (braceLevel==0) {
                 noNameArgs+= mTokenizer[i]->text;
+                typeGetted = false;
             }
         } else {
             switch(ch.unicode()) {
diff --git a/RedPandaIDE/widgets/functiontooltipwidget.cpp b/RedPandaIDE/widgets/functiontooltipwidget.cpp
index 699b5529..9b75899b 100644
--- a/RedPandaIDE/widgets/functiontooltipwidget.cpp
+++ b/RedPandaIDE/widgets/functiontooltipwidget.cpp
@@ -18,9 +18,11 @@
 
 #include <QHBoxLayout>
 #include <QPushButton>
+#include <QDebug>
 
 FunctionTooltipWidget::FunctionTooltipWidget(QWidget *parent) :
-    QFrame(parent, Qt::ToolTip | Qt::WindowStaysOnTopHint | Qt::WindowDoesNotAcceptFocus)
+    QFrame{parent, Qt::ToolTip | Qt::WindowStaysOnTopHint | Qt::WindowDoesNotAcceptFocus},
+    mMinWidth{410}
 {
     setFocusPolicy(Qt::NoFocus);
     mInfoLabel = new QLabel(this);
@@ -120,12 +122,19 @@ void FunctionTooltipWidget::updateTip()
         return;
     PFunctionInfo info = mInfos[mInfoIndex];
     QString text = info->returnType+ " " + info->name;
+    QString originText = text;
     if (info->params.length()==0) {
         text += "()";
+        originText += "()";
     } else {
         QStringList displayList;
+        QStringList originList;
         for (int i=0;i<info->params.length();i++){
-            const QString& param = info->params[i];
+            QString param = info->params[i];
+            originList.append(param);
+
+            param.replace("<","&lt;");
+            param.replace(">","&gt;");
             if (mParamIndex == i) {
                 displayList.append(QString("<b>%1</b>").arg(param));
             } else {
@@ -133,13 +142,14 @@ void FunctionTooltipWidget::updateTip()
             }
         }
         text += "( "+displayList.join(", ") + ") ";
+        originText += "( "+originList.join(", ") + ") ";
     }
     if (mInfos.length()>1) {
         mTotalLabel->setText(QString("%1/%2").arg(mInfoIndex+1).arg(mInfos.length()));
     }
-    int width = mInfoLabel->fontMetrics().horizontalAdvance(text);
-    if (width > 400) {
-        mInfoLabel->setMinimumWidth(410);
+    int width = mInfoLabel->fontMetrics().horizontalAdvance(originText)+10;
+    if (width > mMinWidth) {
+        mInfoLabel->setMinimumWidth(mMinWidth);
     } else {
         mInfoLabel->setMinimumWidth(width);
     }
@@ -192,6 +202,16 @@ QStringList FunctionTooltipWidget::splitArgs(QString argStr)
     return result;
 }
 
+int FunctionTooltipWidget::minWidth() const
+{
+    return mMinWidth;
+}
+
+void FunctionTooltipWidget::setMinWidth(int newMinWidth)
+{
+    mMinWidth = newMinWidth;
+}
+
 const QString &FunctionTooltipWidget::functionFullName() const
 {
     return mFunctioFullName;
diff --git a/RedPandaIDE/widgets/functiontooltipwidget.h b/RedPandaIDE/widgets/functiontooltipwidget.h
index 3ea5ac09..86f971e2 100644
--- a/RedPandaIDE/widgets/functiontooltipwidget.h
+++ b/RedPandaIDE/widgets/functiontooltipwidget.h
@@ -54,6 +54,9 @@ public:
     const QString &functionFullName() const;
     void setFunctioFullName(const QString &newFunctioFullName);
 
+    int minWidth() const;
+    void setMinWidth(int newMinWidth);
+
 private:
     QStringList splitArgs(QString args);
 private:
@@ -67,6 +70,7 @@ private:
     QString mFunctioFullName;
 
     QList<PFunctionInfo> mInfos;
+    int mMinWidth;
 
     // QWidget interface
 protected: