Add wchar.h for wide char overloads

test/CMakeLists.txt

@@ -72,6 +72,7 @@ add_fmt_test(compile-test)
 add_fmt_test(printf-test)
 add_fmt_test(ranges-test)
 add_fmt_test(scan-test)
+add_fmt_test(wchar-test)
 
 if (NOT MSVC)
   # FMT_ENFORCE_COMPILE_STRING is not supported under MSVC due to compiler bugs.

test/core-test.cc

@@ -590,11 +590,6 @@ TEST(core_test, to_string_view_foreign_strings) {
   EXPECT_EQ(type, fmt::detail::type::string_type);
 }
 
-TEST(core_test, format_foreign_strings) {
-  using namespace test_ns;
-  EXPECT_EQ(fmt::format(test_string<char>("{}"), 42), "42");
-}
-
 struct implicitly_convertible_to_string {
   operator std::string() const { return "foo"; }
 };

test/format-test.cc

@@ -1580,8 +1580,6 @@ TEST(format_test, print) {
   EXPECT_WRITE(stdout, fmt::print("Don't {}!", "panic"), "Don't panic!");
   EXPECT_WRITE(stderr, fmt::print(stderr, "Don't {}!", "panic"),
                "Don't panic!");
-  // Check that the wide print overload compiles.
-  if (fmt::detail::const_check(false)) fmt::print(L"test");
 }
 
 TEST(format_test, variadic) {

test/wchar-test.cc

@@ -0,0 +1,15 @@
+// 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 "fmt/wchar.h"
+
+#include "gtest/gtest.h"
+
+TEST(wchar_test, print) {
+  // Check that the wide print overload compiles.
+  if (fmt::detail::const_check(false)) fmt::print(L"test");
+}