Fix warnings

include/fmt/chrono.h

@@ -385,9 +385,9 @@ inline bool isnan(T value) {
   return std::isnan(value);
 }
 
-template <typename T> inline int to_int(T value) {
-  FMT_ASSERT(isnan(value) || (value >= (std::numeric_limits<int>::min)() &&
-                              value <= (std::numeric_limits<int>::max)()),
+// Convers value to int and checks that it's in the range [0, upper).
+template <typename T> inline int to_int(T value, int upper) {
+  FMT_ASSERT(isnan(value) || (value >= 0 && value <= upper),
              "invalid value");
   return static_cast<int>(value);
 }
@@ -483,9 +483,9 @@ struct chrono_formatter {
 
   std::tm time() const {
     auto time = std::tm();
-    time.tm_hour = to_int(hour());
-    time.tm_min = to_int(minute());
-    time.tm_sec = to_int(second());
+    time.tm_hour = to_int(hour(), 24);
+    time.tm_min = to_int(minute(), 60);
+    time.tm_sec = to_int(second(), 60);
     return time;
   }
 
@@ -500,7 +500,7 @@ struct chrono_formatter {
     write_sign();
     if (isnan(value)) return write_nan();
     typedef typename int_traits<int>::main_type main_type;
-    main_type n = to_unsigned(to_int(value));
+    main_type n = to_unsigned(to_int(value, (std::numeric_limits<int>::max)()));
     int num_digits = internal::count_digits(n);
     if (width > num_digits) out = std::fill_n(out, width - num_digits, '0');
     out = format_decimal<char_type>(out, n, num_digits);
@@ -541,21 +541,21 @@ struct chrono_formatter {
   void on_24_hour(numeric_system ns) {
     if (ns == numeric_system::standard) return write(hour(), 2);
     auto time = tm();
-    time.tm_hour = to_int(hour());
+    time.tm_hour = to_int(hour(), 24);
     format_localized(time, "%OH");
   }
 
   void on_12_hour(numeric_system ns) {
     if (ns == numeric_system::standard) return write(hour12(), 2);
     auto time = tm();
-    time.tm_hour = to_int(hour12());
+    time.tm_hour = to_int(hour12(), 12);
     format_localized(time, "%OI");
   }
 
   void on_minute(numeric_system ns) {
     if (ns == numeric_system::standard) return write(minute(), 2);
     auto time = tm();
-    time.tm_min = to_int(minute());
+    time.tm_min = to_int(minute(), 60);
     format_localized(time, "%OM");
   }
 
@@ -570,7 +570,7 @@ struct chrono_formatter {
       return;
     }
     auto time = tm();
-    time.tm_sec = to_int(second());
+    time.tm_sec = to_int(second(), 60);
     format_localized(time, "%OS");
   }
 

include/fmt/format.h

@@ -33,6 +33,7 @@
 #include <cmath>
 #include <cstdint>
 #include <cstring>
+#include <iterator>
 #include <limits>
 #include <memory>
 #include <stdexcept>
@@ -94,10 +95,6 @@
 #  endif
 #endif
 
-#if FMT_SECURE_SCL
-#  include <iterator>
-#endif
-
 #ifdef __has_builtin
 #  define FMT_HAS_BUILTIN(x) __has_builtin(x)
 #else