From ecf55f86d6451eed6b79618a2303111ba7ee345c Mon Sep 17 00:00:00 2001
From: ToruNiina <niina.toru.68u@gmail.com>
Date: Fri, 21 Jun 2019 00:25:21 +0900
Subject: [PATCH] refactor: add explicit type conversion

---
 toml/datetime.hpp        | 12 ++++++------
 toml/region.hpp          |  9 +++++----
 toml/serializer.hpp      |  2 +-
 toml/source_location.hpp |  6 +++---
 4 files changed, 15 insertions(+), 14 deletions(-)

diff --git a/toml/datetime.hpp b/toml/datetime.hpp
index 4ea75e7..dc52396 100644
--- a/toml/datetime.hpp
+++ b/toml/datetime.hpp
@@ -188,22 +188,22 @@ struct local_time
     explicit local_time(const std::chrono::duration<Rep, Period>& t)
     {
         const auto h = std::chrono::duration_cast<std::chrono::hours>(t);
-        this->hour = h.count();
+        this->hour = static_cast<std::uint8_t>(h.count());
         const auto t2 = t - h;
         const auto m = std::chrono::duration_cast<std::chrono::minutes>(t2);
-        this->minute = m.count();
+        this->minute = static_cast<std::uint8_t>(m.count());
         const auto t3 = t2 - m;
         const auto s = std::chrono::duration_cast<std::chrono::seconds>(t3);
-        this->second = s.count();
+        this->second = static_cast<std::uint8_t>(s.count());
         const auto t4 = t3 - s;
         const auto ms = std::chrono::duration_cast<std::chrono::milliseconds>(t4);
-        this->millisecond = ms.count();
+        this->millisecond = static_cast<std::uint16_t>(ms.count());
         const auto t5 = t4 - ms;
         const auto us = std::chrono::duration_cast<std::chrono::microseconds>(t5);
-        this->microsecond = us.count();
+        this->microsecond = static_cast<std::uint16_t>(us.count());
         const auto t6 = t5 - us;
         const auto ns = std::chrono::duration_cast<std::chrono::nanoseconds>(t6);
-        this->nanosecond = ns.count();
+        this->nanosecond = static_cast<std::uint16_t>(ns.count());
     }
 
     operator std::chrono::nanoseconds() const
diff --git a/toml/region.hpp b/toml/region.hpp
index 1aaa45f..65c6818 100644
--- a/toml/region.hpp
+++ b/toml/region.hpp
@@ -424,13 +424,14 @@ inline std::string format_underline(const std::string& message,
 {
     assert(!reg_com.empty());
 
-    const auto line_num_width = std::max_element(reg_com.begin(), reg_com.end(),
+    const auto line_num_width = static_cast<int>(std::max_element(
+        reg_com.begin(), reg_com.end(),
         [](std::pair<region_base const*, std::string> const& lhs,
            std::pair<region_base const*, std::string> const& rhs)
         {
             return lhs.first->line_num().size() < rhs.first->line_num().size();
         }
-    )->first->line_num().size();
+    )->first->line_num().size());
 
     std::ostringstream retval;
     retval << message << '\n';
@@ -453,7 +454,7 @@ inline std::string format_underline(const std::string& message,
 
         retval << ' ' << std::setw(line_num_width) << reg->line_num();
         retval << " | " << reg->line() << '\n';
-        retval << make_string(line_num_width + 1, ' ');
+        retval << make_string(static_cast<std::size_t>(line_num_width + 1), ' ');
         retval << " | " << make_string(reg->before(), ' ');
 
         if(reg->size() == 1)
@@ -477,7 +478,7 @@ inline std::string format_underline(const std::string& message,
     if(!helps.empty())
     {
         retval << '\n';
-        retval << make_string(line_num_width + 1, ' ');
+        retval << make_string(static_cast<std::size_t>(line_num_width + 1), ' ');
         retval << " | ";
         for(const auto help : helps)
         {
diff --git a/toml/serializer.hpp b/toml/serializer.hpp
index 6a508a6..4711236 100644
--- a/toml/serializer.hpp
+++ b/toml/serializer.hpp
@@ -652,7 +652,7 @@ operator<<(std::basic_ostream<charT, traits>& os, const basic_value<C, M, V>& v)
 {
     // get status of std::setw().
     const auto w     = static_cast<std::size_t>(os.width());
-    const int  fprec = os.precision();
+    const int  fprec = static_cast<int>(os.precision());
     os.width(0);
 
     if(!v.comments().empty())
diff --git a/toml/source_location.hpp b/toml/source_location.hpp
index 48396a0..051f4e5 100644
--- a/toml/source_location.hpp
+++ b/toml/source_location.hpp
@@ -48,9 +48,9 @@ struct source_location
     {
         if(reg)
         {
-            line_num_    = std::stoul(reg->line_num());
-            column_num_  = reg->before() + 1;
-            region_size_ = reg->size();
+            line_num_    = static_cast<std::uint_least32_t>(std::stoul(reg->line_num()));
+            column_num_  = static_cast<std::uint_least32_t>(reg->before() + 1);
+            region_size_ = static_cast<std::uint_least32_t>(reg->size());
             file_name_   = reg->name();
             line_str_    = reg->line();
         }