xref: /openbsd-src/gnu/lib/libstdc++/libstdc++/testsuite/22_locale/codecvt_members_char_char.cc (revision 67b993f490445e9d86721b8e600ae1baf4574be7)
1 // 2000-08-17 Benjamin Kosnik <bkoz@cygnus.com>
2 
3 // Copyright (C) 2000, 2002 Free Software Foundation
4 //
5 // This file is part of the GNU ISO C++ Library.  This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 2, or (at your option)
9 // any later version.
10 
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 // GNU General Public License for more details.
15 
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING.  If not, write to the Free
18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
19 // USA.
20 
21 // 22.2.1.5 - Template class codecvt [lib.locale.codecvt]
22 
23 #include <locale>
24 #include <testsuite_hooks.h>
25 
26 // Required instantiation, degenerate conversion.
27 // codecvt<char, char, mbstate_t>
test01()28 void test01()
29 {
30   using namespace std;
31   typedef codecvt_base::result			result;
32   typedef codecvt<char, char, mbstate_t> 	c_codecvt;
33 
34   bool 			test = true;
35   const char* 		c_lit = "black pearl jasmine tea";
36   const char* 	        from_next;
37   int 			size = 25;
38   char* 		c_arr = new char[size];
39   char*                 c_ref = new char[size];
40   char*			to_next;
41 
42   locale 		loc;
43   c_codecvt::state_type state;
44   const c_codecvt* 	cvt = &use_facet<c_codecvt>(loc);
45 
46   // According to the resolution of DR19 (see also libstd++/9168), in
47   // case of degenerate conversion ('noconv'), "there are no changes to
48   // the values in [to, to_limit)."
49   memset(c_ref, 'X', size);
50 
51   // in
52   memset(c_arr, 'X', size);
53   result r1 = cvt->in(state, c_lit, c_lit + size, from_next,
54 		      c_arr, c_arr + size, to_next);
55   VERIFY( r1 == codecvt_base::noconv );
56   VERIFY( !memcmp(c_arr, c_ref, size) );
57   VERIFY( from_next == c_lit );
58   VERIFY( to_next == c_arr );
59 
60   // out
61   memset(c_arr, 'X', size);
62   result r2 = cvt->out(state, c_lit, c_lit + size, from_next,
63 		       c_arr, c_arr + size, to_next);
64   VERIFY( r2 == codecvt_base::noconv );
65   VERIFY( !memcmp(c_arr, c_ref, size) );
66   VERIFY( from_next == c_lit );
67   VERIFY( to_next == c_arr );
68 
69   // unshift
70   ::strlcpy(c_arr, c_lit, size);
71   result r3 = cvt->unshift(state, c_arr, c_arr + size, to_next);
72   VERIFY( r3 == codecvt_base::noconv );
73   VERIFY( !strcmp(c_arr, c_lit) );
74   VERIFY( to_next == c_arr );
75 
76   int i = cvt->encoding();
77   VERIFY( i == 1 );
78 
79   VERIFY( cvt->always_noconv() );
80 
81   int j = cvt->length(state, c_lit, c_lit + size, 5);
82   VERIFY( j == 5 );
83 
84   int k = cvt->max_length();
85   VERIFY( k == 1 );
86 
87   delete [] c_arr;
88   delete [] c_ref;
89 }
90 
91 // libstdc++/5280
test02()92 void test02()
93 {
94 #ifdef _GLIBCPP_HAVE_SETENV
95   // Set the global locale to non-"C".
96   std::locale loc_de("de_DE");
97   std::locale::global(loc_de);
98 
99   // Set LANG environment variable to de_DE.
100   const char* oldLANG = getenv("LANG");
101   if (!setenv("LANG", "de_DE", 1))
102     {
103       test01();
104       setenv("LANG", oldLANG ? oldLANG : "", 1);
105     }
106 #endif
107 }
108 
109 // http://gcc.gnu.org/ml/libstdc++/2002-05/msg00038.html
test03()110 void test03()
111 {
112   bool test = true;
113 
114   const char* tentLANG = std::setlocale(LC_ALL, "ja_JP.eucjp");
115   if (tentLANG != NULL)
116     {
117       std::string preLANG = tentLANG;
118       test01();
119       std::string postLANG = std::setlocale(LC_ALL, NULL);
120       VERIFY( preLANG == postLANG );
121     }
122 }
123 
main()124 int main ()
125 {
126   test01();
127   test02();
128   test03();
129   return 0;
130 }
131