test using the limits struct

Author: mborland

test/test_to_chars.cpp

@@ -23,7 +23,7 @@ static constexpr auto N = static_cast<std::size_t>(1024U >> 4U); // Number of tr
 #if !defined(BOOST_DECIMAL_DISABLE_CLIB) && !(defined(__GNUC__) && __GNUC__ >= 13 && !defined(__aarch64__))
 
 template <typename T>
-void test_value(T val, const char* result, chars_format fmt = boost::decimal::chars_format::general, int precision = -1)
+void test_value(T val, const char* result, chars_format fmt, int precision = -1)
 {
     char buffer[256] {};
     auto r = to_chars(buffer, buffer + sizeof(buffer), val, fmt, precision);
@@ -32,6 +32,16 @@ void test_value(T val, const char* result, chars_format fmt = boost::decimal::ch
     BOOST_TEST_CSTR_EQ(result, buffer);
 }
 
+template <typename T>
+void test_value(T val, const char* result)
+{
+    char buffer[boost::decimal::limits<T>::max_chars] {};
+    auto r = to_chars(buffer, buffer + sizeof(buffer), val, chars_format::general);
+    *r.ptr = '\0';
+    BOOST_TEST(r);
+    BOOST_TEST_CSTR_EQ(result, buffer);
+}
+
 template <typename T>
 void test_non_finite_values()
 {