[PATCH] D62782: Fix -Wdouble-promotion warnings.

[Bruce Mitchener via Phabricator via cfe-commits]

brucem created this revision.
brucem added a reviewer: mclow.lists.
Herald added subscribers: ldionne, christof.

Repository:
  rCXX libc++

https://reviews.llvm.org/D62782

Files:
  include/limits
  include/utility


Index: include/utility
===================================================================
--- include/utility
+++ include/utility
@@ -1479,7 +1479,7 @@
     size_t operator()(float __v) const _NOEXCEPT
     {
         // -0.0 and 0.0 should return same hash
-       if (__v == 0.0)
+       if (__v == 0.0f)
            return 0;
         return __scalar_hash<float>::operator()(__v);
     }
@@ -1507,7 +1507,7 @@
     size_t operator()(long double __v) const _NOEXCEPT
     {
         // -0.0 and 0.0 should return same hash
-        if (__v == 0.0)
+        if (__v == 0.0L)
             return 0;
 #if defined(__i386__)
         // Zero out padding bits
Index: include/limits
===================================================================
--- include/limits
+++ include/limits
@@ -409,7 +409,7 @@
     static _LIBCPP_CONSTEXPR const bool is_exact = false;
     static _LIBCPP_CONSTEXPR const int  radix = __FLT_RADIX__;
     _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return __LDBL_EPSILON__;}
-    _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return 0.5;}
+    _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return 0.5L;}
 
     static _LIBCPP_CONSTEXPR const int  min_exponent = __LDBL_MIN_EXP__;
     static _LIBCPP_CONSTEXPR const int  min_exponent10 = __LDBL_MIN_10_EXP__;


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