[HP-UX 11.23] std::num_put drops sign from negative long double NaN
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Key: STDCXX-464
URL: https://issues.apache.org/jira/browse/STDCXX-464
Project: C++ Standard Library
Issue Type: Bug
Components: 22. Localization
Affects Versions: 4.1.3
Environment: HP-UX 11.23 and prior
Reporter: Martin Sebor
Assignee: Martin Sebor
On HP-UX 11.23 and prior versions of the OS negative long double NaN is formatted without
the minus sign:
$ uname -sr && cat t.cpp && nice gmake t && ./t
HP-UX B.11.23
#include <cassert>
#include <iostream>
#include <limits>
#include <sstream>
int main ()
{
std::ostringstream os;
os << std::numeric_limits<double>::quiet_NaN () << " == "
<< std::numeric_limits<long double>::quiet_NaN () << '\n'
<< -std::numeric_limits<double>::quiet_NaN () << " == "
<< -std::numeric_limits<long double>::quiet_NaN ();
std::cout << os.str () << '\n';
assert (os.str () == "nan == nan\n-nan == -nan");
}
aCC -c -I/amd/devco/sebor/stdcxx/include/ansi -I/usr/include -D_RWSTDDEBUG -I/amd/devco/sebor/stdcxx/include
-I/build/sebor/stdcxx-aCC-3.73-11s/include -I/amd/devco/sebor/stdcxx/examples/include -Aa
+nostl -g +d +w +W392 +W655 +W684 +W818 +W819 +W849 t.cpp
aCC t.o -o t -Aa +nostl -Wl,+s -Wl,+vnocompatwarnings -L/build/sebor/stdcxx-aCC-3.73-11s/lib
-lstd11s -lm
nan == nan
-nan == nan
Assertion failed: os.str () == "nan == nan\n-nan == -nan", file t.cpp, line 15
ABORT instruction (core dumped)
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