set_rdbuf.pass.cpp [plain text]
#include <ios>
#include <streambuf>
#include <cassert>
struct testbuf
: public std::streambuf
{
};
struct testios
: public std::ios
{
testios(std::streambuf* p) : std::ios(p) {}
void set_rdbuf(std::streambuf* x) {std::ios::set_rdbuf(x);}
};
int main()
{
testbuf sb1;
testbuf sb2;
testios ios(&sb1);
try
{
ios.setstate(std::ios::badbit);
ios.exceptions(std::ios::badbit);
}
catch (...)
{
}
ios.set_rdbuf(&sb2);
assert(ios.rdbuf() == &sb2);
try
{
ios.setstate(std::ios::badbit);
ios.exceptions(std::ios::badbit);
}
catch (...)
{
}
ios.set_rdbuf(0);
assert(ios.rdbuf() == 0);
}