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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/27_io/basic_stringbuf/sgetn/char/1.cc
1 // 981208 bkoz test functionality of basic_stringbuf for char_type == char
3 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
5 // Free Software Foundation, Inc.
7 // This file is part of the GNU ISO C++ Library. This library is free
8 // software; you can redistribute it and/or modify it under the
9 // terms of the GNU General Public License as published by the
10 // Free Software Foundation; either version 3, or (at your option)
13 // This library is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 // GNU General Public License for more details.
18 // You should have received a copy of the GNU General Public License along
19 // with this library; see the file COPYING3. If not see
20 // <http://www.gnu.org/licenses/>.
23 #include <testsuite_hooks.h>
25 std::string
str_01("mykonos. . . or what?");
26 std::string
str_02("paris, or sainte-maxime?");
28 std::stringbuf
strb_01(str_01
);
29 std::stringbuf
strb_02(str_02
, std::ios_base::in
);
30 std::stringbuf
strb_03(str_03
, std::ios_base::out
);
32 // test overloaded virtual functions
35 bool test
__attribute__((unused
)) = true;
36 std::streamsize strmsz_1
, strmsz_2
;
37 std::streamoff
strmof_1(-1), strmof_2
;
38 typedef std::stringbuf::int_type int_type
;
39 typedef std::stringbuf::traits_type traits_type
;
42 strmof_1
= strb_01
.in_avail();
43 strmof_2
= strb_02
.in_avail();
44 strmof_1
= strb_03
.in_avail();
46 int_type c1
= strb_01
.sbumpc();
47 int_type c2
= strb_02
.sbumpc();
49 int_type c4
= strb_02
.sbumpc();
50 int_type c5
= strb_03
.sbumpc();
53 // if read_cur not avail, return uflow(), else return *read_cur
54 int_type c6
= strb_01
.sgetc();
55 int_type c7
= strb_02
.sgetc();
61 // calls sbumpc and if sbumpc != eof, return sgetc
62 c6
= strb_01
.snextc();
63 c7
= strb_02
.snextc();
64 c5
= strb_03
.snextc();
66 // streamsize sgetn(char_type *s, streamsize n)
67 // streamsize xsgetn(char_type *s, streamsize n)
68 // assign up to n chars to s from input sequence, indexing in_cur as
69 // approp and returning the number of chars assigned
70 strmsz_1
= strb_01
.in_avail();
71 strmsz_2
= strb_02
.in_avail();
72 test
= strmsz_1
!= strmsz_2
;
73 VERIFY( strmsz_1
!= static_cast<std::streamsize
>(str_01
.length()) );
74 // because now we've moved into string
75 VERIFY( strmsz_2
!= static_cast<std::streamsize
>(str_02
.length()) );
76 char carray1
[11] = "";
77 strmsz_1
= strb_01
.sgetn(carray1
, 10);
78 char carray2
[20] = "";
79 strmsz_2
= strb_02
.sgetn(carray2
, 10);
80 VERIFY( strmsz_1
== strmsz_2
);
81 VERIFY( strmsz_1
== 10 );
84 VERIFY( c6
== c1
); //just by co-incidence both o's
85 VERIFY( c7
!= c2
); // n != i
86 VERIFY( c1
== traits_type::to_int_type(str_01
[13]) );
87 VERIFY( c2
== traits_type::to_int_type(str_02
[13]) ); //should equal fourteenth letter at this point
88 strmsz_1
= strb_03
.sgetn(carray1
, 10);
89 VERIFY( !strmsz_1
); //zero
90 strmsz_1
= strb_02
.in_avail();
91 strmsz_2
= strb_02
.sgetn(carray2
, strmsz_1
+ 5);
92 VERIFY( strmsz_1
== strmsz_2
); //write off the end
93 c4
= strb_02
.sgetc(); // should be EOF
94 VERIFY( c4
== traits_type::eof() );