[Linux] gcc 21.cwchar.cpp tm error
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Key: STDCXX-364
URL: https://issues.apache.org/jira/browse/STDCXX-364
Project: C++ Standard Library
Issue Type: Bug
Components: 21. Strings
Affects Versions: 4.2
Environment: Linux, gcc 3.4.6 - 4.1.2
Reporter: Scott (Yu) Zhong
getting this error:
/home/scottz/stdcxx/tests/strings/21.cwchar.cpp:568: error: reference to 'tm'
is ambiguous
/usr/include/../include/time.h:135: error: candidates are: struct tm
/home/scottz/stdcxx/tests/strings/21.cwchar.cpp:550: error:
struct Fallback::tm
/home/scottz/stdcxx/tests/strings/21.cwchar.cpp:568: error: reference to 'tm'
is ambiguous
/usr/include/../include/time.h:135: error: candidates are: struct tm
/home/scottz/stdcxx/tests/strings/21.cwchar.cpp:550: error:
struct Fallback::tm
/home/scottz/stdcxx/tests/strings/21.cwchar.cpp:568: error: 'tm' does not name
a type
/home/scottz/stdcxx/tests/strings/21.cwchar.cpp:577: error: 'test_tm' in
namespace 'std::Nested' does not name a type
-----------------------------------------------------------------------------------------
Martin Sebor [EMAIL PROTECTED]
I was able to reproduce the same error with gcc 3.4.6.
The purpose of the test is to verify the conformance of the <cwchar> header WRT
namespace cleanliness (i.e., that symbols like struct tm are defined in
namespace std and not also in the global scope). The test is designed to fail
at runtime (via assertions) rather than at compile time but it looks like the
implementation of the test (or maybe even its
design) is broken. In any case, the fact that the test doesn't compile suggests
there is a problem with the header.
The compilation errors for the simple program below confirm this. Can you open
an issue for this problem and reference this thread in the archive in the issue?
$ cat t.cpp && nice make t
#include <cwchar>
int main ()
{
std::tm tmb = { 0 };
}
gcc -c -I/amd/devco/sebor/stdcxx/include/ansi -D_RWSTDDEBUG
-I/amd/devco/sebor/stdcxx/include -I/build/sebor/stdcxx-gcc-3.4.6-11S/include
-I/amd/devco/sebor/stdcxx/../rwtest
-I/amd/devco/sebor/stdcxx/../rwtest/include
-I/amd/devco/sebor/stdcxx/tests/include -pedantic -nostdinc++ -g -W -Wall
-Wcast-qual -Winline -Wshadow -Wwrite-strings -Wno-long-long
-Wcast-align t.cpp
t.cpp: In function `int main()':
t.cpp:5: error: `tm' is not a member of `std'
t.cpp:5: error: expected `;' before "tmb"
make: *** [t.o] Error 1
Thanks
Martin
$ cat t.cpp && nice make t
#include <cwchar>
int main ()
{
std::tm tmb = { 0 };
}
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