stream_extract.pass.cpp [plain text]
#include <string>
#include <sstream>
#include <cassert>
int main()
{
{
std::istringstream in("a bc defghij");
std::string s("initial text");
in >> s;
assert(in.good());
assert(s == "a");
assert(in.peek() == ' ');
in >> s;
assert(in.good());
assert(s == "bc");
assert(in.peek() == ' ');
in.width(3);
in >> s;
assert(in.good());
assert(s == "def");
assert(in.peek() == 'g');
in >> s;
assert(in.eof());
assert(s == "ghij");
in >> s;
assert(in.fail());
}
{
std::wistringstream in(L"a bc defghij");
std::wstring s(L"initial text");
in >> s;
assert(in.good());
assert(s == L"a");
assert(in.peek() == L' ');
in >> s;
assert(in.good());
assert(s == L"bc");
assert(in.peek() == L' ');
in.width(3);
in >> s;
assert(in.good());
assert(s == L"def");
assert(in.peek() == L'g');
in >> s;
assert(in.eof());
assert(s == L"ghij");
in >> s;
assert(in.fail());
}
}