fix msvc errors

.travis.yml

@@ -48,7 +48,7 @@ after_success:
   - if [ "$COMPILER" = "g++-4.9" ]; then cd .. && ./bin/xlnt.test ; fi
   - if [ "$COMPILER" = "g++-4.9" ]; then export OLDWD=$(pwd) ; fi
   - if [ "$COMPILER" = "g++-4.9" ]; then cd "build/CMakeFiles/xlnt.static.dir$(pwd)" ; pwd ; fi
-  - if [ "$COMPILER" = "g++-4.9" ]; then coveralls --root $OLDWD --verbose -x ".cpp" --gcov-options '\-p' --exclude include --exclude third-party ; fi
+  - if [ "$COMPILER" = "g++-4.9" ]; then coveralls --root $OLDWD --verbose -x ".cpp" --gcov-options '\-p' --exclude include --exclude third-party --exclude tests --exclude samples --exclude benchmarks ; fi
 
 notifications:
   email: false

include/xlnt/utils/timedelta.hpp

@@ -40,7 +40,7 @@ struct XLNT_CLASS timedelta
 
     timedelta(int days_, int hours_, int minutes_, int seconds_, int microseconds_);
 
-    double to_number() const;
+    long double to_number() const;
 
     int days;
     int hours;

source/utils/tests/test_timedelta.hpp

@@ -8,18 +8,18 @@ class test_timedelta : public CxxTest::TestSuite
 public:
     void test_from_number()
     {
-        auto td = xlnt::timedelta::from_number(1.0);
+        auto td = xlnt::timedelta::from_number(1.0423726852L);
 
         TS_ASSERT(td.days == 1);
-        TS_ASSERT(td.hours == 0);
-        TS_ASSERT(td.minutes == 0);
-        TS_ASSERT(td.seconds == 0);
-        TS_ASSERT(td.microseconds == 0);
+        TS_ASSERT(td.hours == 1);
+        TS_ASSERT(td.minutes == 1);
+        TS_ASSERT(td.seconds == 1);
+        TS_ASSERT(td.microseconds == 1);
     }
 
     void test_round_trip()
     {
-    	long double time = 3.14159265;
+    	long double time = 3.14159265359L;
         auto td = xlnt::timedelta::from_number(time);
         auto time_rt = td.to_number();
         TS_ASSERT_EQUALS(time, time_rt);
@@ -28,6 +28,6 @@ public:
     void test_to_number()
     {
     	xlnt::timedelta td(1, 1, 1, 1, 1);
-    	TS_ASSERT_EQUALS(td.to_number(), 1.0423726851999999);
+    	TS_ASSERT_EQUALS(td.to_number(), 1.0423726852L);
     }
 };

source/utils/timedelta.cpp

@@ -18,7 +18,7 @@ timedelta::timedelta(int days_, int hours_, int minutes_, int seconds_, int micr
     {
     }
 
-double timedelta::to_number() const
+long double timedelta::to_number() const
 {
     std::uint64_t total_microseconds = static_cast<std::uint64_t>(microseconds);
     total_microseconds += static_cast<std::uint64_t>(seconds * 1e6);
@@ -37,10 +37,10 @@ timedelta timedelta::from_number(long double raw_time)
 {
     timedelta result;
 
-    double integer_part;
-    double fractional_part = std::modf((double)raw_time, &integer_part);
+    long double integer_part;
+    long double fractional_part = std::modf(raw_time, &integer_part);
 
-    result.days = integer_part;
+    result.days = static_cast<int>(integer_part);
 
     fractional_part *= 24;
     result.hours = (int)fractional_part;

source/workbook/workbook.cpp

@@ -9,6 +9,7 @@
 #include <xlnt/packaging/manifest.hpp>
 #include <xlnt/packaging/relationship.hpp>
 #include <xlnt/packaging/zip_file.hpp>
+#include <xlnt/serialization/encoding.hpp>
 #include <xlnt/serialization/excel_serializer.hpp>
 #include <xlnt/styles/alignment.hpp>
 #include <xlnt/styles/border.hpp>
@@ -48,6 +49,8 @@ workbook::workbook() : d_(new detail::workbook_impl())
     create_relationship("rId4", "theme/theme1.xml", relationship::type::theme);
     
     add_number_format(number_format::general());
+
+    d_->encoding_ = encoding::ascii;
     
     d_->manifest_.add_default_type("rels", "application/vnd.openxmlformats-package.relationships+xml");
     d_->manifest_.add_default_type("xml", "application/xml");