diff options
Diffstat (limited to 'libstdc++-v3/testsuite/27_io/ostream_inserter_other.cc')
-rw-r--r-- | libstdc++-v3/testsuite/27_io/ostream_inserter_other.cc | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/libstdc++-v3/testsuite/27_io/ostream_inserter_other.cc b/libstdc++-v3/testsuite/27_io/ostream_inserter_other.cc index 9d8cc0f9ecc..4ae1f3b88a6 100644 --- a/libstdc++-v3/testsuite/27_io/ostream_inserter_other.cc +++ b/libstdc++-v3/testsuite/27_io/ostream_inserter_other.cc @@ -198,6 +198,28 @@ private: std::string::const_iterator it; }; +class test_buffer_4 : public std::streambuf { +public: + test_buffer_4(const std::string& s) : str(s), it(str.begin()) + { + if (it != str.end()) { + buf[0] = *it++; + setg(buf, buf, buf+1); + } + } + +protected: + virtual int underflow() { return (it != str.end() ? *it : EOF); } + virtual int uflow() { return (it != str.end() ? *it++ : EOF); } + virtual std::streamsize showmanyc() { + std::streamsize ret = std::distance(it, str.end()); + return ret > 0 ? ret : -1; + } +private: + const std::string str; + std::string::const_iterator it; + char buf[1]; +}; void test(const std::string& str, std::streambuf& buf) { @@ -218,8 +240,6 @@ void test(const std::string& str, std::streambuf& buf) // Jonathan Lennox <lennox@cs.columbia.edu> void test05() { - std::ostringstream out_1, out_2, out_3, out_4; - std::string string_a("Hello, world!"); std::string string_b(""); @@ -232,6 +252,9 @@ void test05() test_buffer_3 buf3a(string_a); test_buffer_3 buf3b(string_b); + test_buffer_4 buf4a(string_a); + test_buffer_4 buf4b(string_b); + test(string_a, buf1a); test(string_b, buf1b); @@ -240,6 +263,9 @@ void test05() test(string_a, buf3a); test(string_b, buf3b); + + test(string_a, buf4a); + test(string_b, buf4b); } int |