Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1 | //===----------------------------------------------------------------------===// |
| 2 | // |
Howard Hinnant | f5256e1 | 2010-05-11 21:36:01 +0000 | [diff] [blame] | 3 | // The LLVM Compiler Infrastructure |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 4 | // |
Howard Hinnant | b64f8b0 | 2010-11-16 22:09:02 +0000 | [diff] [blame] | 5 | // This file is dual licensed under the MIT and the University of Illinois Open |
| 6 | // Source Licenses. See LICENSE.TXT for details. |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | // <strstream> |
| 11 | |
| 12 | // class strstream |
| 13 | |
| 14 | // strstream(char* s, int n, ios_base::openmode mode = ios_base::in | ios_base::out); |
| 15 | |
| 16 | #include <strstream> |
| 17 | #include <cassert> |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 18 | |
| 19 | int main() |
| 20 | { |
| 21 | { |
| 22 | char buf[] = "123 4.5 dog"; |
| 23 | std::strstream inout(buf, 0); |
| 24 | assert(inout.str() == std::string("123 4.5 dog")); |
| 25 | int i = 321; |
| 26 | double d = 5.5; |
| 27 | std::string s("cat"); |
| 28 | inout >> i; |
| 29 | assert(inout.fail()); |
| 30 | inout.clear(); |
| 31 | inout << i << ' ' << d << ' ' << s; |
| 32 | assert(inout.str() == std::string("321 5.5 cat")); |
| 33 | i = 0; |
| 34 | d = 0; |
| 35 | s = ""; |
| 36 | inout >> i >> d >> s; |
| 37 | assert(i == 321); |
| 38 | assert(d == 5.5); |
| 39 | assert(s == "cat"); |
| 40 | } |
| 41 | { |
| 42 | char buf[23] = "123 4.5 dog"; |
| 43 | std::strstream inout(buf, 11, std::ios::app); |
| 44 | assert(inout.str() == std::string("123 4.5 dog")); |
| 45 | int i = 0; |
| 46 | double d = 0; |
| 47 | std::string s; |
| 48 | inout >> i >> d >> s; |
| 49 | assert(i == 123); |
| 50 | assert(d == 4.5); |
| 51 | assert(s == "dog"); |
| 52 | i = 321; |
| 53 | d = 5.5; |
| 54 | s = "cat"; |
| 55 | inout.clear(); |
| 56 | inout << i << ' ' << d << ' ' << s; |
| 57 | assert(inout.str() == std::string("123 4.5 dog321 5.5 cat")); |
| 58 | } |
| 59 | } |