From: Tomasz Kamiński <tkaminsk@redhat.com>
Date: Thu, 12 Jun 2025 14:36:15 +0000 (+0200)
Subject: libstdc++: Test chrono-spec containing only whitespaces.
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cec7355d9fe2e24ccb1d82913034eebcc6c0e974;p=thirdparty%2Fgcc.git

libstdc++: Test chrono-spec containing only whitespaces.

libstdc++-v3/ChangeLog:

	* testsuite/std/time/format/whitespace.cc: New test.

Reviewed-by: Jonathan Wakely <jwakely@redhat.com>
Signed-off-by: Tomasz Kamiński <tkaminsk@redhat.com>
---

diff --git a/libstdc++-v3/testsuite/std/time/format/whitespace.cc b/libstdc++-v3/testsuite/std/time/format/whitespace.cc
new file mode 100644
index 00000000000..debda08995c
--- /dev/null
+++ b/libstdc++-v3/testsuite/std/time/format/whitespace.cc
@@ -0,0 +1,56 @@
+// { dg-do run { target c++20 } }
+
+#include <chrono>
+#include <testsuite_hooks.h>
+
+using namespace std::chrono;
+
+#define WIDEN_(C, S) ::std::__format::_Widen<C>(S, L##S)
+#define WIDEN(S) WIDEN_(_CharT, S)
+
+template<typename _CharT, typename ChronoType>
+void
+test(const ChronoType& ct)
+{
+  std::basic_string<_CharT> res;
+  
+  res = std::format(WIDEN("{:%% %t %n  more text}"), ct);
+  VERIFY( res == WIDEN("% \t \n  more text") );
+
+  res = std::format(WIDEN("{:7%% %t %n}"), ct);
+  VERIFY( res == WIDEN("% \t \n  ") );
+
+  res = std::format(WIDEN("{:>6%% %t %n}"), ct);
+  VERIFY( res == WIDEN(" % \t \n") );
+
+  res = std::format(WIDEN("{:+>7%% %t %n}"), ct);
+  VERIFY( res == WIDEN("++% \t \n") );
+
+  res = std::format(WIDEN("{:=^7%% %t %n}"), ct);
+  VERIFY( res == WIDEN("=% \t \n=") );
+}
+
+template<typename CharT>
+void
+test_all()
+{
+  test<CharT>(20s);
+  test<CharT>(10d);
+  test<CharT>(Monday);
+  test<CharT>(2020y/January/8);
+  test<CharT>(local_days(2020y/January/8));
+  test<CharT>(sys_days(2020y/January/8) + 13h + 10min + 5s);
+#if _GLIBCXX_USE_CXX11_ABI || ! _GLIBCXX_USE_DUAL_ABI
+  test<CharT>(sys_info());
+  test<CharT>(local_info());
+#endif
+}
+
+int main()
+{
+  test_all<char>();
+
+#ifdef _GLIBCXX_USE_WCHAR_T
+  test_all<wchar_t>();
+#endif // _GLIBCXX_USE_WCHAR_T
+}