num_put::put(..., 1.0e+4932L, ...) formats "inf"
------------------------------------------------
Key: STDCXX-880
URL: https://issues.apache.org/jira/browse/STDCXX-880
Project: C++ Standard Library
Issue Type: Bug
Components: 22. Localization
Affects Versions: trunk
Reporter: Martin Sebor
Priority: Blocker
Fix For: 4.2.1
The
[{{22.locale.num.put.cpp}}|http://svn.apache.org/repos/asf/stdcxx/trunk/tests/localization/22.locale.num.put.cpp]
fails 4 assertions with the head of trunk (see below). The test passes at 100%
with 4.2.0. I reduced the failures to the following test case:
{noformat}
$ cat t.cpp && gmake t && ./t
#include <cassert>
#include <cstdio>
#include <math.h>
#include <sstream>
int main ()
{
const long double x = 1.0e+4932L;
assert (isnormal (x));
std::ostringstream strm;
strm << x;
char buf [40];
std::sprintf (buf, "%Lg", x);
if (strm.str () == buf)
return 0;
std::printf ("%s != %s\n", strm.str ().c_str (), buf);
assert (0);
}
aCC -c -D_RWSTDDEBUG -mt -I/amd/devco/sebor/stdcxx-4.2.x/include -I/build/seb
or/stdcxx-4.2.x-aCC-6.16-15D//include -I/amd/devco/sebor/stdcxx-4.2.x/tests/incl
ude -AA -g +d +DD64 +w +W392,655,684,818,819,849 +W2193,2236,2261,2340,2401,2
487 +W4227,4229,4231,4235,4237,4249 +W4255,4272,4284,4285,4286,4296,4297 +W3348
t.cpp
"/amd/devco/sebor/stdcxx-4.2.x/include/loc/_ctype.h", line 545: warning #2186-D:
pointless comparison of unsigned integer with zero
if ( 0 <= __c
^
"/amd/devco/sebor/stdcxx-4.2.x/include/loc/_ctype.h", line 555: warning #2186-D:
pointless comparison of unsigned integer with zero
if ( 0 <= __c
^
aCC t.o -o t -L/build/sebor/stdcxx-4.2.x-aCC-6.16-15D//rwtest -lrwtest15D -AA +n
ostl -Wl,+s -mt +DD64 -L/build/sebor/stdcxx-4.2.x-aCC-6.16-15D//lib -Wl,+b/bu
ild/sebor/stdcxx-4.2.x-aCC-6.16-15D//lib:/build/sebor/stdcxx-4.2.x-aCC-6.16-15D/
/rwtest -lstd15D -lm
inf != 1e+4932
Assertion failed: 0, file t.cpp, line 22
ABORT instruction (core dumped)
{noformat}
The output of {{22.locale.num.put}} follows:
{noformat}
$ ./22.locale.num.put -q
# ASSERTION (S7) (4 lines):
# TEXT: line 377: num_put<char>::put (..., long double = 1.18973e+4932) wrote
"inf", expected "1.18973149535723176508575932662800702e+4932", flags =
fmtflags(0), precision = 36
# CLAUSE: lib.locale.num.put
# LINE: 1854
# ASSERTION (S7) (4 lines):
# TEXT: line 377: num_put<char>::put (..., long double = 1e+4932) wrote "inf",
expected { "1", '0' <repeats 34 times>, "1", '0' <repeats 4897 times> }, flags
= fixed, precision = 0
# CLAUSE: lib.locale.num.put
# LINE: 1958
# ASSERTION (S7) (4 lines):
# TEXT: line 377: num_put<wchar_t>::put (..., long double = 1.18973e+4932)
wrote L"inf", expected "1.18973149535723176508575932662800702e+4932", flags =
fmtflags(0), precision = 36
# CLAUSE: lib.locale.num.put
# LINE: 1854
# ASSERTION (S7) (4 lines):
# TEXT: line 377: num_put<wchar_t>::put (..., long double = 1e+4932) wrote
L"inf", expected { "1", '0' <repeats 34 times>, "1", '0' <repeats 4897 times>
}, flags = fixed, precision = 0
# CLAUSE: lib.locale.num.put
# LINE: 1958
# +-----------------------+----------+----------+----------+
# | DIAGNOSTIC | ACTIVE | TOTAL | INACTIVE |
# +-----------------------+----------+----------+----------+
# | (S1) INFO | 96 | 96 | 0% |
# | (S2) NOTE | 1 | 1 | 0% |
# | (S5) WARNING | 2 | 2 | 0% |
# | (S7) ASSERTION | 4 | 1671 | 99% |
# +-----------------------+----------+----------+----------+
{noformat}
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