libstdc++/5499: True name and named locales

libstdc++/5499: True name and named locales

[Peter Schmid]

>Number:         5499
>Category:       libstdc++
>Synopsis:       True name and named locales
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Jan 26 11:06:00 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Peter Schmid
>Release:        3.1 20020126 (experimental)
>Organization:
TU Darmstadt
>Environment:
System: Linux kiste 2.4.17 #7 Thu Jan 3 17:21:51 CET 2002 i686 unknown
Architecture: i686
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: ../gcc/configure --enable-shared --disable-nls --enable-threads --enable-languages=c,c++,f77,objc
>Description:
False name and true name of the numpunct facet are not
changed when the named locale is set a value other than "C". For
example, running the following program tnum should print: 
"True name = wahr, False name = falsch", for the German locale.  
>How-To-Repeat:
#include <iostream>

int main ()
{
  using namespace std;
  locale loc("");

  const numpunct<char>& np =
    use_facet<numpunct<char> >(loc);

  cout << "Decimal point       = "
       << np.decimal_point() << endl;
  cout << "Thousands separator = "
       << np.thousands_sep() << endl;
  cout << "True name           = "
       << np.truename() << endl;
  cout << "False name          = "
       << np.falsename() << endl;
}

g++ -v -o tnum tnum.C -W -Wall -g
Reading specs from /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1/specs
Configured with: ../gcc/configure --enable-shared --disable-nls --enable-threads --enable-languages=c,c++,f77,objc
Thread model: posix
gcc version 3.1 20020126 (experimental)
 /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1/cc1plus -v -D__GNUC__=3 -D__GNUC_MINOR__=1 -D__GNUC_PATCHLEVEL__=0 -D__ELF__ -Dunix -Dlinux -D__ELF__ -D__unix__ -D__linux__ -D__unix -D__linux -Asystem=posix -D__NO_INLINE__ -D__STDC_HOSTED__=1 -W -Wall -D_GNU_SOURCE -Acpu=i386 -Amachine=i386 -Di386 -D__i386 -D__i386__ -D__tune_i686__ -D__tune_pentiumpro__ tnum.C -D__GNUG__=3 -D__DEPRECATED -D__EXCEPTIONS -D__GXX_ABI_VERSION=100 -quiet -dumpbase tnum.C -g -W -Wall -version -o /tmp/ccLKVoOg.s
GNU CPP version 3.1 20020126 (experimental) (cpplib) (i386 Linux/ELF)
GNU C++ version 3.1 20020126 (experimental) (i686-pc-linux-gnu)
	compiled by GNU C version 3.1 20020126 (experimental).
ignoring nonexistent directory "NONE/include"
ignoring nonexistent directory "/usr/local/i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/include/g++-v3
 /usr/local/include/g++-v3/i686-pc-linux-gnu
 /usr/local/include/g++-v3/backward
 /usr/local/include
 /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1/include
 /usr/include
End of search list.
 /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1/../../../../i686-pc-linux-gnu/bin/as -V -Qy -o /tmp/ccYF5KYm.o /tmp/ccLKVoOg.s
GNU assembler version 2.11.92.0.12.3 (i686-pc-linux-gnu) using BFD version 2.11.92.0.12.3 20011121
 /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1/collect2 -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 -o tnum /usr/lib/crt1.o /usr/lib/crti.o /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1/crtbegin.o -L/usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1 -L/usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1/../../../../i686-pc-linux-gnu/lib -L/usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1/../../.. /tmp/ccYF5KYm.o -lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s -lgcc /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1/crtend.o /usr/lib/crtn.o

LANG=de_DE ./tnum
Decimal point       = ,
Thousands separator = .
True name           = true
False name          = false
>Fix:
	
>Release-Note:
>Audit-Trail:
>Unformatted:

Re: libstdc++/5499: True name and named locales

[bkoz]

Synopsis: True name and named locales

Responsible-Changed-From-To: unassigned->bkoz
Responsible-Changed-By: bkoz
Responsible-Changed-When: Thu Feb  7 17:53:18 2002
Responsible-Changed-Why:
    This is mine.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=5499

Re: libstdc++/5499: True name and named locales

[paolo]

Synopsis: True name and named locales

State-Changed-From-To: open->analyzed
State-Changed-By: paolo
State-Changed-When: Sun Jan 27 07:39:32 2002
State-Changed-Why:
    Confirmed.
    It looks like this is not implemented at all: where the
    string literals "wahr" and "falsch" should be stored?!?
    For the time being, we can modify the facet by hand:
    #include <iostream>
    using namespace std;
    
    template <class charT>                                         
    class change_bool_names
      : public numpunct_byname<charT>                            
    {
    public:
      typedef basic_string<charT> string_type;
      explicit change_bool_names (const char* name,                
        const charT* t, const charT* f, size_t refs=0)
        : numpunct_byname<charT> (name,refs),
          true_string(t), false_string(f) { }
    protected:
      string_type do_truename () const { return true_string; }     
      string_type do_falsename () const { return false_string; }
    private:
      string_type true_string, false_string;
    };
    
    
    int main(int argc, char** argv)
    {
      locale loc(locale("de_DE"),                                 
        new change_bool_names<char>("de_DE","Ja.","Nein."));   
      cout.imbue(loc);                                            
      cout << "Argumente vorhanden? "  
             << boolalpha << (argc > 1) << endl;                    
    }

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=5499