libcxx/test/std/input.output/iostreams.base/ios.base/fmtflags.state/precision_streamsize.pass.cpp

//===----------------------------------------------------------------------===//
//
//                     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.
//
//===----------------------------------------------------------------------===//

// <ios>

// class ios_base

// streamsize precision(streamsize prec);

#include <ios>
#include <cassert>

class test
    : public std::ios
{
public:
    test()
    {
        init(0);
    }
};

int main()
{
    test t;
    assert(t.precision() == 6);
    std::streamsize p = t.precision(10);
    assert(p == 6);
    assert(t.precision() == 10);
}