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a2febbfb | 1 | // 981208 bkoz test functionality of basic_stringbuf for char_type == char |
2 | ||
fbd26352 | 3 | // Copyright (C) 1997-2019 Free Software Foundation, Inc. |
a2febbfb | 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 | |
6bc9506f | 8 | // Free Software Foundation; either version 3, or (at your option) |
a2febbfb | 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 | |
6bc9506f | 17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
a2febbfb | 19 | |
20 | #include <sstream> | |
21 | #include <testsuite_hooks.h> | |
22 | ||
23 | std::string str_01("mykonos. . . or what?"); | |
24 | std::string str_02("paris, or sainte-maxime?"); | |
25 | std::string str_03; | |
26 | std::stringbuf strb_01(str_01); | |
27 | std::stringbuf strb_02(str_02, std::ios_base::in); | |
28 | std::stringbuf strb_03(str_03, std::ios_base::out); | |
29 | ||
30 | // test overloaded virtual functions | |
31 | void test04() | |
32 | { | |
a2febbfb | 33 | std::streamsize strmsz_1, strmsz_2; |
a2febbfb | 34 | typedef std::stringbuf::int_type int_type; |
35 | typedef std::stringbuf::traits_type traits_type; | |
a2febbfb | 36 | |
37 | // GET | |
1c78c762 | 38 | strb_01.in_avail(); |
39 | strb_02.in_avail(); | |
40 | strb_03.in_avail(); | |
a2febbfb | 41 | |
42 | int_type c1 = strb_01.sbumpc(); | |
43 | int_type c2 = strb_02.sbumpc(); | |
f8ef786c | 44 | strb_01.sbumpc(); |
a2febbfb | 45 | int_type c4 = strb_02.sbumpc(); |
1c78c762 | 46 | strb_03.sbumpc(); |
a2febbfb | 47 | |
48 | // int_type sgetc() | |
49 | // if read_cur not avail, return uflow(), else return *read_cur | |
50 | int_type c6 = strb_01.sgetc(); | |
51 | int_type c7 = strb_02.sgetc(); | |
f8ef786c | 52 | strb_01.sgetc(); |
53 | strb_02.sgetc(); | |
1c78c762 | 54 | strb_03.sgetc(); |
a2febbfb | 55 | |
56 | // int_type snextc() | |
57 | // calls sbumpc and if sbumpc != eof, return sgetc | |
58 | c6 = strb_01.snextc(); | |
59 | c7 = strb_02.snextc(); | |
1c78c762 | 60 | strb_03.snextc(); |
a2febbfb | 61 | |
62 | // streamsize sgetn(char_type *s, streamsize n) | |
63 | // streamsize xsgetn(char_type *s, streamsize n) | |
64 | // assign up to n chars to s from input sequence, indexing in_cur as | |
65 | // approp and returning the number of chars assigned | |
66 | strmsz_1 = strb_01.in_avail(); | |
67 | strmsz_2 = strb_02.in_avail(); | |
310594c1 | 68 | VERIFY( strmsz_1 != strmsz_2 ); |
f8ef786c | 69 | VERIFY( strmsz_1 != static_cast<std::streamsize>(str_01.length()) ); |
70 | // because now we've moved into string | |
71 | VERIFY( strmsz_2 != static_cast<std::streamsize>(str_02.length()) ); | |
a2febbfb | 72 | char carray1[11] = ""; |
73 | strmsz_1 = strb_01.sgetn(carray1, 10); | |
74 | char carray2[20] = ""; | |
75 | strmsz_2 = strb_02.sgetn(carray2, 10); | |
76 | VERIFY( strmsz_1 == strmsz_2 ); | |
77 | VERIFY( strmsz_1 == 10 ); | |
78 | c1 = strb_01.sgetc(); | |
79 | c2 = strb_02.sgetc(); | |
80 | VERIFY( c6 == c1 ); //just by co-incidence both o's | |
81 | VERIFY( c7 != c2 ); // n != i | |
810d0cce | 82 | VERIFY( c1 == traits_type::to_int_type(str_01[13]) ); |
83 | VERIFY( c2 == traits_type::to_int_type(str_02[13]) ); //should equal fourteenth letter at this point | |
a2febbfb | 84 | strmsz_1 = strb_03.sgetn(carray1, 10); |
85 | VERIFY( !strmsz_1 ); //zero | |
86 | strmsz_1 = strb_02.in_avail(); | |
87 | strmsz_2 = strb_02.sgetn(carray2, strmsz_1 + 5); | |
88 | VERIFY( strmsz_1 == strmsz_2 ); //write off the end | |
89 | c4 = strb_02.sgetc(); // should be EOF | |
90 | VERIFY( c4 == traits_type::eof() ); | |
91 | } | |
92 | ||
93 | int main() | |
94 | { | |
95 | test04(); | |
96 | return 0; | |
97 | } | |
98 | ||
99 | ||
100 | ||
101 | // more candy!!! |