fixing build warnings

include/xlnt/cell/rich_text_run.hpp

@@ -38,7 +38,7 @@ struct rich_text_run
 {
     std::string first;
     optional<font> second;
-    bool preserve_space;
+    bool preserve_space = false;
 
     bool operator==(const rich_text_run &other) const;
 

source/cell/rich_text.cpp

@@ -29,12 +29,12 @@
 namespace xlnt {
 
 rich_text::rich_text(const std::string &plain_text)
-    : rich_text({plain_text, optional<font>()})
+    : rich_text(rich_text_run{plain_text, optional<font>()})
 {
 }
 
 rich_text::rich_text(const std::string &plain_text, const class font &text_font)
-    : rich_text({plain_text, optional<font>(text_font)})
+    : rich_text(rich_text_run{plain_text, optional<font>(text_font)})
 {
 }
 

source/packaging/ext_list.cpp

@@ -44,6 +44,12 @@ namespace {
                 s.characters(p.value());
                 break;
             }
+            case xml::parser::eof:
+                return;
+            case xml::parser::start_attribute:
+            case xml::parser::end_attribute:
+            default:
+                break;
             }
         }
     }

source/worksheet/phonetic_pr.cpp

@@ -113,7 +113,7 @@ const std::string &phonetic_pr::type_as_string(phonetic_pr::Type type)
 
 phonetic_pr::Type phonetic_pr::type_from_string(const std::string &str)
 {
-    for (int i = 0; i < Types.size(); ++i)
+    for (std::size_t i = 0; i < Types.size(); ++i)
     {
         if (str == Types[i])
         {
@@ -130,7 +130,7 @@ const std::string &phonetic_pr::alignment_as_string(Alignment type)
 
 phonetic_pr::Alignment phonetic_pr::alignment_from_string(const std::string &str)
 {
-    for (int i = 0; i < Alignments.size(); ++i)
+    for (std::size_t i = 0; i < Alignments.size(); ++i)
     {
         if (str == Alignments[i])
         {