Add some tiny coverage improvements

boostorg · Jan 16, 2025 · 848688b · 848688b
1 parent 7742123
commit 848688b
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Showing 2 changed files with 21 additions and 0 deletions.
diff --git a/include/boost/multiprecision/cpp_df_qf/cpp_df_qf_detail_ccmath_limits.hpp b/include/boost/multiprecision/cpp_df_qf/cpp_df_qf_detail_ccmath_limits.hpp
@@ -58,6 +58,7 @@ struct numeric_limits<FloatingPointType,
    static constexpr int max_exponent10                 = std::numeric_limits<float_type>::max_exponent10;
    static constexpr int min_exponent10                 = std::numeric_limits<float_type>::min_exponent10;
 
+   // LCOV_EXCL_START
    static constexpr auto (min)         () noexcept -> float_type { return (std::numeric_limits<float_type>::min)         (); }
    static constexpr auto (max)         () noexcept -> float_type { return (std::numeric_limits<float_type>::max)         (); }
    static constexpr auto  lowest       () noexcept -> float_type { return  std::numeric_limits<float_type>::lowest       (); }
@@ -67,6 +68,7 @@ struct numeric_limits<FloatingPointType,
    static constexpr auto  infinity     () noexcept -> float_type { return  std::numeric_limits<float_type>::infinity     (); }
    static constexpr auto  quiet_NaN    () noexcept -> float_type { return  std::numeric_limits<float_type>::quiet_NaN    (); }
    static constexpr auto  signaling_NaN() noexcept -> float_type { return  std::numeric_limits<float_type>::signaling_NaN(); }
+   // LCOV_EXCL_STOP
 };
 
 #if defined(BOOST_MP_CPP_DOUBLE_FP_HAS_FLOAT128)

diff --git a/test/test_various_edges.cpp b/test/test_various_edges.cpp
@@ -15,11 +15,15 @@
 #include <boost/multiprecision/cpp_double_fp.hpp>
 #endif
 
+#include <array>
 #include <chrono>
+#include <cstddef>
+#include <cstdint>
 #include <iomanip>
 #include <iostream>
 #include <limits>
 #include <random>
+#include <string>
 
 #if defined(__clang__)
 #  pragma clang diagnostic push
@@ -426,6 +430,21 @@ namespace local
       BOOST_TEST(result_is_ok = ((conversion_result_max == (std::numeric_limits<unsigned long long>::max)()) && result_is_ok));
     }
 
+    {
+      using str_nans_array_type = std::array<std::string, std::size_t { UINT8_C(3) }>;
+
+      const str_nans_array_type str_nan_reps {{ "nan", "NaN", "NAN" }};
+
+      for(auto i = static_cast<std::size_t>(UINT8_C(0)); i < str_nan_reps.size(); ++i)
+      {
+        float_type flt_nan { float_type { str_nan_reps[i].c_str() } * dis(gen) };
+
+        const bool result_nan_str_is_ok { isnan(flt_nan) };
+
+        BOOST_TEST(result_is_ok = (result_nan_str_is_ok && result_is_ok));
+      }
+    }
+
     return result_is_ok;
   }