blob: b87f7eb92e5ab874c49d867ff781aa35be977e4f [file] [log] [blame]
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <sstream>
// template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
// class basic_stringstream
// explicit basic_stringstream(const basic_string<charT,traits,Allocator>& str,
// ios_base::openmode which = ios_base::out|ios_base::in);
#include <sstream>
#include <cassert>
template<typename T>
struct NoDefaultAllocator : std::allocator<T>
{
template<typename U> struct rebind { using other = NoDefaultAllocator<U>; };
NoDefaultAllocator(int id_) : id(id_) { }
template<typename U> NoDefaultAllocator(const NoDefaultAllocator<U>& a) : id(a.id) { }
int id;
};
int main()
{
{
std::stringstream ss(" 123 456 ");
assert(ss.rdbuf() != 0);
assert(ss.good());
assert(ss.str() == " 123 456 ");
int i = 0;
ss >> i;
assert(i == 123);
ss >> i;
assert(i == 456);
ss << i << ' ' << 123;
assert(ss.str() == "456 1236 ");
}
{
std::wstringstream ss(L" 123 456 ");
assert(ss.rdbuf() != 0);
assert(ss.good());
assert(ss.str() == L" 123 456 ");
int i = 0;
ss >> i;
assert(i == 123);
ss >> i;
assert(i == 456);
ss << i << ' ' << 123;
assert(ss.str() == L"456 1236 ");
}
{ // This is https://bugs.llvm.org/show_bug.cgi?id=33727
typedef std::basic_string <char, std::char_traits<char>, NoDefaultAllocator<char> > S;
typedef std::basic_stringbuf<char, std::char_traits<char>, NoDefaultAllocator<char> > SB;
S s(NoDefaultAllocator<char>(1));
SB sb(s);
// This test is not required by the standard, but *where else* could it get the allocator?
assert(sb.str().get_allocator() == s.get_allocator());
}
}