https://gcc.gnu.org/g:a8e22d3fcc079c02bc2bc91d57f5877fb87f52cb
commit r16-955-ga8e22d3fcc079c02bc2bc91d57f5877fb87f52cb
Author: Jonathan Wakely <jwak...@redhat.com>
Date: Wed May 28 22:02:58 2025 +0100
libstdc++: Fix lwg4084.cc test FAIL on AIX
On AIX printf formats a quiet NaN as "NaNQ" and it doesn't matter
whether %f or %F is used. Similarly, it always prints "INF" for
infinity, even when %f is used. Adjust a test that currently fails due
to this AIX-specific (and non-conforming) behaviour.
libstdc++-v3/ChangeLog:
* testsuite/22_locale/num_put/put/char/lwg4084.cc [_AIX]: Adjust
expected output for NaN and infinity.
Diff:
---
libstdc++-v3/testsuite/22_locale/num_put/put/char/lwg4084.cc | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/libstdc++-v3/testsuite/22_locale/num_put/put/char/lwg4084.cc
b/libstdc++-v3/testsuite/22_locale/num_put/put/char/lwg4084.cc
index b7c7da11f863..6ce4e8fe9f71 100644
--- a/libstdc++-v3/testsuite/22_locale/num_put/put/char/lwg4084.cc
+++ b/libstdc++-v3/testsuite/22_locale/num_put/put/char/lwg4084.cc
@@ -20,7 +20,11 @@ test_nan()
out << ' ' << nan << ' ' << -nan;
out << std::showpos;
out << ' ' << nan << ' ' << -nan;
+#ifdef _AIX // non-conforming
+ VERIFY( out.str() == " NaNQ -NaNQ NaNQ -NaNQ NaNQ -NaNQ +NaNQ -NaNQ" );
+#else
VERIFY( out.str() == " nan -nan NAN -NAN NAN -NAN +NAN -NAN" );
+#endif
}
void
@@ -36,7 +40,11 @@ test_inf()
out << ' ' << inf << ' ' << -inf;
out << std::showpos;
out << ' ' << inf << ' ' << -inf;
+#ifdef _AIX // non-conforming
+ VERIFY( out.str() == " INF -INF INF -INF INF -INF +INF -INF" );
+#else
VERIFY( out.str() == " inf -inf INF -INF INF -INF +INF -INF" );
+#endif
}
int main()
