Merge pull request #2925 from nlohmann/issue2924

Guard GCC pragmas

include/nlohmann/detail/conversions/to_chars.hpp

@@ -1066,8 +1066,10 @@ char* to_chars(char* first, const char* last, FloatType value)
         *first++ = '-';
     }
 
+#ifdef __GNUC__
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wfloat-equal"
+#endif
     if (value == 0) // +-0
     {
         *first++ = '0';
@@ -1076,7 +1078,9 @@ char* to_chars(char* first, const char* last, FloatType value)
         *first++ = '0';
         return first;
     }
+#ifdef __GNUC__
 #pragma GCC diagnostic pop
+#endif
 
     JSON_ASSERT(last - first >= std::numeric_limits<FloatType>::max_digits10);
 

include/nlohmann/detail/output/binary_writer.hpp

@@ -1525,8 +1525,10 @@ class binary_writer
 
     void write_compact_float(const number_float_t n, detail::input_format_t format)
     {
+#ifdef __GNUC__
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wfloat-equal"
+#endif
         if (static_cast<double>(n) >= static_cast<double>(std::numeric_limits<float>::lowest()) &&
                 static_cast<double>(n) <= static_cast<double>((std::numeric_limits<float>::max)()) &&
                 static_cast<double>(static_cast<float>(n)) == static_cast<double>(n))
@@ -1543,7 +1545,9 @@ class binary_writer
                                 : get_msgpack_float_prefix(n));
             write_number(n);
         }
+#ifdef __GNUC__
 #pragma GCC diagnostic pop
+#endif
     }
 
   public:

include/nlohmann/json.hpp

@@ -6278,8 +6278,10 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
     */
     friend bool operator==(const_reference lhs, const_reference rhs) noexcept
     {
+#ifdef __GNUC__
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wfloat-equal"
+#endif
         const auto lhs_type = lhs.type();
         const auto rhs_type = rhs.type();
 
@@ -6344,7 +6346,9 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
         }
 
         return false;
+#ifdef __GNUC__
 #pragma GCC diagnostic pop
+#endif
     }
 
     /*!

single_include/nlohmann/json.hpp

@@ -14826,8 +14826,10 @@ class binary_writer
 
     void write_compact_float(const number_float_t n, detail::input_format_t format)
     {
+#ifdef __GNUC__
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wfloat-equal"
+#endif
         if (static_cast<double>(n) >= static_cast<double>(std::numeric_limits<float>::lowest()) &&
                 static_cast<double>(n) <= static_cast<double>((std::numeric_limits<float>::max)()) &&
                 static_cast<double>(static_cast<float>(n)) == static_cast<double>(n))
@@ -14844,7 +14846,9 @@ class binary_writer
                                 : get_msgpack_float_prefix(n));
             write_number(n);
         }
+#ifdef __GNUC__
 #pragma GCC diagnostic pop
+#endif
     }
 
   public:
@@ -15985,8 +15989,10 @@ char* to_chars(char* first, const char* last, FloatType value)
         *first++ = '-';
     }
 
+#ifdef __GNUC__
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wfloat-equal"
+#endif
     if (value == 0) // +-0
     {
         *first++ = '0';
@@ -15995,7 +16001,9 @@ char* to_chars(char* first, const char* last, FloatType value)
         *first++ = '0';
         return first;
     }
+#ifdef __GNUC__
 #pragma GCC diagnostic pop
+#endif
 
     JSON_ASSERT(last - first >= std::numeric_limits<FloatType>::max_digits10);
 
@@ -23370,8 +23378,10 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
     */
     friend bool operator==(const_reference lhs, const_reference rhs) noexcept
     {
+#ifdef __GNUC__
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wfloat-equal"
+#endif
         const auto lhs_type = lhs.type();
         const auto rhs_type = rhs.type();
 
@@ -23436,7 +23446,9 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
         }
 
         return false;
+#ifdef __GNUC__
 #pragma GCC diagnostic pop
+#endif
     }
 
     /*!