Test FMT_BUILTIN_TYPES

test/CMakeLists.txt

@@ -62,13 +62,14 @@ if (NOT (MSVC AND BUILD_SHARED_LIBS))
 endif ()
 add_fmt_test(ostream-test)
 add_fmt_test(compile-test)
-add_fmt_test(compile-fp-test HEADER_ONLY)
+add_fmt_test(compile-fp-test)
 if (MSVC)
   # Without this option, MSVC returns 199711L for the __cplusplus macro.
   target_compile_options(compile-fp-test PRIVATE /Zc:__cplusplus)
 endif()
 add_fmt_test(printf-test)
 add_fmt_test(ranges-test ranges-odr-test.cc)
+add_fmt_test(no-builtin-types-test HEADER_ONLY)
 
 add_fmt_test(scan-test HEADER_ONLY)
 check_symbol_exists(strptime "time.h" HAVE_STRPTIME)

test/no-builtin-types-test.cc

@@ -0,0 +1,24 @@
+// Formatting library for C++ - formatting library tests
+//
+// Copyright (c) 2012 - present, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+
+#include "gtest/gtest.h"
+
+#if !defined(__GNUC__) || __GNUC__ >= 5
+#define FMT_BUILTIN_TYPES 0
+#include "fmt/format.h"
+
+TEST(no_builtin_types_test, format) {
+  EXPECT_EQ(fmt::format("{}", 42), "42");
+}
+
+TEST(no_builtin_types_test, double_is_custom_type) {
+  double d = 42;
+  auto args = fmt::make_format_args(d);
+  EXPECT_EQ(fmt::format_args(args).get(0).type(),
+            fmt::detail::type::custom_type);
+}
+#endif