[committed] libstdc++: Fix std::format test for Solaris [PR113450]

[committed] libstdc++: Fix std::format test for Solaris [PR113450]

[Jonathan Wakely]

Tested x86_64-linux. Pushed to trunk.

-- >8 --

When int8_t is a typedef for char (rather than signed char) this test
fails because it tries to format a char, which is treated differently
from formatting other integral types (including signed char).

Use signed char explicitly so the result doesn't depend on the
non-portable definition of int8_t.

libstdc++-v3/ChangeLog:

	PR libstdc++/113450
	* testsuite/std/format/functions/format.cc: Use signed char
	instead of int8_t.
---
 libstdc++-v3/testsuite/std/format/functions/format.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libstdc++-v3/testsuite/std/format/functions/format.cc b/libstdc++-v3/testsuite/std/format/functions/format.cc
index 63702edbd42..30c5fc22237 100644
--- a/libstdc++-v3/testsuite/std/format/functions/format.cc
+++ b/libstdc++-v3/testsuite/std/format/functions/format.cc
@@ -365,7 +365,7 @@ test_minmax()
     s = std::format("{:b}" , std::numeric_limits<U>::max());
     VERIFY( s == '1' + ones );
   };
-  check(std::int8_t(0));
+  check((signed char)(0)); // int8_t is char on Solaris, see PR 113450
   check(std::int16_t(0));
   check(std::int32_t(0));
   check(std::int64_t(0));
-- 
2.43.0